225 results on '"Purva Mathur"'
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2. Tuberculous Pericarditis in a Patient with COVID-19
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Smriti Srivastava, Neha Sharad, Aparna Ningombam, Devesh Kumar, Rajesh Malhotra, and Purva Mathur
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General Medicine - Published
- 2023
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3. A self-reported survey on the implementation of infection prevention and control elements in Indian hospitals, part of a HAI surveillance network: Results from 23 hospitals conducting a standardized IPC assessment
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Sonal Katyal, Sharad Srivastav, Omika Katoch, Camilla Rodrigues, Priscilla Rupali, Arunaloke Chakrabarti, Pallab Ray, Manisha Biswal, Vibhor Tak, Reema Nath, Chiranjay Mukhopadhyay, Sanjay Bhattacharya, Kanne Padmaja, Vijayshri Deotale, Vimala Venkatesh, Chand Wattal, Thirunarayan MA, Vijaya Lakshmi Nag, Raja Ray, Bijayini Behera, Sujata Baveja, Tadepalli Karuna, Sanjeev K Singh, Bashir Fomda, Sulochana K Devi, Padma Das, Neeta Khandelwal, Prachi Verma, Premkumar Thangavelu, Shaista Nazir, Vandana K Eshwara, Muralidhar Varma, Tushar S Mishra, Rashmi R Das, Rajesh Malhotra, Kamini Walia, Randeep Guleria, and Purva Mathur
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Infectious Diseases ,Epidemiology ,Health Policy ,Public Health, Environmental and Occupational Health - Abstract
Healthcare-associated infections (HAIs) are one of the most common adverse events in patient care that account for substantial morbidity and mortality. We evaluate the existing Infection Prevention and Control (IPC) practices in hospitals participating in the nationally representative HAI Surveillance network.This cross-sectional survey was conducted in 23 hospitals across 22 states of India from October-2015 to September-2018 in the HAI surveillance network. The World Health Organization (WHO) IPC core components assessment tool for health-care facility level (IPCAT-H) was adapted from IPC assessment tool developed by US Centers for Disease Control and Prevention (US CDC) under the Epidemiology and Laboratory Capacity (ELC) Infection Control Assessment and Response (ICAR) Program. Mann-Whitney U test was used to calculate the significant difference between scores (P.05).Amongst the participating hospitals, 7 were private sectors and 16 were public health care facilities. Infection IPCAT-H average score per multimodal strategy was less than 50% for programmed IPC activities (45.7); implementation of health care workers (HCWs) immunization programme (43.5%); monitoring and evaluation component (38.30%).There is potential for improvement in Human Resources, Surveillance of HAIs as well as Monitoring and Evaluation components.
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- 2023
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4. Infection Trends, Susceptibility Pattern, and Treatment Options for Stenotrophomonas maltophilia Infections in Trauma Patients: A Retrospective Study
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Smriti Srivastava, Parul Singh, Neha Sharad, Vandana Vijayeta Kiro, Rajesh Malhotra, and Purva Mathur
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General Medicine - Abstract
Introduction Stenotrophomonas maltophilia is an emerging environmental, gram-negative, multidrug-resistant organism, associated with risk factors such as prolonged hospitalization, invasive procedures, admission to the intensive care unit, mechanical ventilation, use of indwelling catheters, administration of immunosuppressants or corticosteroids, human immunodeficiency virus infection, underlying malignancy, and organ transplantation. The organism, despite being of low invasiveness in immune-competent individuals, is difficult to treat because of intrinsic resistance to several antimicrobial agents. Materials and Methods This study focuses on commonly encountered resistance from among the isolates over a duration of 7 years from 2012 to 2018, analyzed retrospectively. Identification and susceptibility testing were performed using Vitek 2 (BioMérieux, Marcy-l'Etoile, France). Results Bloodstream infections were found to be most common (52.02%), followed by respiratory infections (35.83%). The median age of the patients was 36 years, and male to female ratio was 143:27. The median duration of hospital stay was 18 days, and mortality was seen in 18.82% of patients. Susceptibility to cotrimoxazole and levofloxacin was seen in 97.1% of isolates (168 out of 173) and 90.1% of isolates (156 out of 173), respectively. Conclusion Despite being effective in a majority of S. maltophilia isolates, both cotrimoxazole and levofloxacin have their shortcomings. Cotrimoxazole is bacteriostatic and can cause bone marrow suppression and resistance to levofloxacin sometimes develops during therapy. Thus, the therapy should be decided considering the characteristics of both of these drugs.
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- 2022
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5. Health-care-associated bloodstream and urinary tract infections in a network of hospitals in India: a multicentre, hospital-based, prospective surveillance study
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Purva Mathur, Paul Malpiedi, Kamini Walia, Padmini Srikantiah, Sunil Gupta, Ayush Lohiya, Arunaloke Chakrabarti, Pallab Ray, Manisha Biswal, Neelam Taneja, Priscilla Rupali, Veeraraghavan Balaji, Camilla Rodrigues, Vijaya Lakshmi Nag, Vibhor Tak, Vimala Venkatesh, Chiranjay Mukhopadhyay, Vijayshri Deotale, Kanne Padmaja, Chand Wattal, Sanjay Bhattacharya, Tadepalli Karuna, Bijayini Behera, Sanjeev Singh, Reema Nath, Raja Ray, Sujata Baveja, Bashir A Fomda, Khumanthem Sulochana Devi, Padma Das, Neeta Khandelwal, Prachi Verma, Prithwis Bhattacharyya, Rajni Gaind, Lata Kapoor, Neil Gupta, Aditya Sharma, Daniel VanderEnde, Valan Siromany, Kayla Laserson, Randeep Guleria, Rajesh Malhotra, Omika Katoch, Sonal Katyal, Surbhi Khurana, Subodh Kumar, Richa Agrawal, Kapil Dev Soni, Sushma Sagar, Naveet Wig, Pramod Garg, Arti Kapil, Rakesh Lodha, Manoj Sahu, M.C. Misra, Mamta Lamba, Shristi Jain, Hema Paul, Joy Sarojini Michael, Pradeep Kumar Bhatia, Kuldeep Singh, Neeraj Gupta, Daisy Khera, D Himanshu, Sheetal Verma, Prashant Gupta, Mala Kumar, Mohammed Pervez Khan, Sarika Gupta, Vandana Kalwaje Eshwara, Muralidhar Varma, Ruchita Attal, Sukanya Sudhaharan, Neeraj Goel, Saurabh Saigal, Sagar Khadanga, Ayush Gupta, M.A. Thirunarayan, Nandini Sethuraman, Ujjaini Roy, Hirak Jyoti Raj, Desma D'Souza, Mammen Chandy, Sudipta Mukherjee, Manas Kumar Roy, Gaurav Goel, Swagata Tripathy, Satyajeet Misra, Anupam Dey, Tushar Misra, Rashmi Ranjan Das, Gulnaz Bashir, Shaista Nazir, Khuraijam Ranjana Devi, Langpoklakpam Chaoba Singh, Anudita Bhargava, Ujjwala Gaikwad, Geeta Vaghela, Tanvi Sukharamwala, Anil Ch. Phukan, Clarissa Lyngdoh, Rushika Saksena, Rajeev Sharma, and Anoop Velayudhan
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Tertiary Care Centers ,Cross Infection ,Anti-Infective Agents ,Klebsiella ,Sepsis ,Urinary Tract Infections ,Infant, Newborn ,Humans ,Pneumonia, Ventilator-Associated ,Prospective Studies ,General Medicine ,Child - Abstract
Health-care-associated infections (HAIs) cause significant morbidity and mortality globally, including in low-income and middle-income countries (LMICs). Networks of hospitals implementing standardised HAI surveillance can provide valuable data on HAI burden, and identify and monitor HAI prevention gaps. Hospitals in many LMICs use HAI case definitions developed for higher-resourced settings, which require human resources and laboratory and imaging tests that are often not available.A network of 26 tertiary-level hospitals in India was created to implement HAI surveillance and prevention activities. Existing HAI case definitions were modified to facilitate standardised, resource-appropriate surveillance across hospitals. Hospitals identified health-care-associated bloodstream infections and urinary tract infections (UTIs) and reported clinical and microbiological data to the network for analysis.26 network hospitals reported 2622 health-care-associated bloodstream infections and 737 health-care-associated UTIs from 89 intensive care units (ICUs) between May 1, 2017, and Oct 31, 2018. Central line-associated bloodstream infection rates were highest in neonatal ICUs (20 per 1000 central line days). Catheter-associated UTI rates were highest in paediatric medical ICUs (4·5 per 1000 urinary catheter days). Klebsiella spp (24·8%) were the most frequent organism in bloodstream infections and Candida spp (29·4%) in UTIs. Carbapenem resistance was common in Gram-negative infections, occurring in 72% of bloodstream infections and 76% of UTIs caused by Klebsiella spp, 77% of bloodstream infections and 76% of UTIs caused by Acinetobacter spp, and 64% of bloodstream infections and 72% of UTIs caused by Pseudomonas spp.The first standardised HAI surveillance network in India has succeeded in implementing locally adapted and context-appropriate protocols consistently across hospitals and has been able to identify a large number of HAIs. Network data show high HAI and antimicrobial resistance rates in tertiary hospitals, showing the importance of implementing multimodal HAI prevention and antimicrobial resistance containment strategies.US Centers for Disease Control and Prevention cooperative agreement with All India Institute of Medical Sciences, New Delhi.For the Hindi translation of the abstract see Supplementary Materials section.
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- 2022
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6. An outbreak of Burkholderia cepacia bloodstream infections in a tertiary-care facility in northern India detected by a healthcare-associated infection surveillance network
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Bashir Fomda, Anoop Velayudhan, Valan A. Siromany, Gulnaz Bashir, Shaista Nazir, Aamir Ali, Omika Katoch, Alphina Karoung, Jacinta Gunjiyal, Nayeem Wani, Indranil Roy, Daniel VanderEnde, Neil Gupta, Aditya Sharma, Paul Malpiedi, Kamini Walia, and Purva Mathur
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Microbiology (medical) ,Infectious Diseases ,Epidemiology - Abstract
Objective:The burden of healthcare-associated infections (HAIs) is higher in low- and middle-income countries, but HAIs are often missed because surveillance is not conducted. Here, we describe the identification of and response to a cluster of Burkholderia cepacia complex (BCC) bloodstream infections (BSIs) associated with high mortality in a surgical ICU (SICU) that joined an HAI surveillance network.Setting:A 780-bed, tertiary-level, public teaching hospital in northern India.Methods:After detecting a cluster of BCC in the SICU, cases were identified by reviewing laboratory registers and automated identification and susceptibility testing outputs. Sociodemographic details, clinical records, and potential exposure histories were collected, and a self-appraisal of infection prevention and control (IPC) practices using assessment tools from the World Health Organization and the US Centers for Disease Control and Prevention was conducted. Training and feedback were provided to hospital staff. Environmental samples were collected from high-touch surfaces, intravenous medications, saline, and mouthwash.Results:Between October 2017 and October 2018, 183 BCC BSI cases were identified. Case records were available for 121 case patients. Of these 121 cases, 91 (75%) were male, the median age was 35 years, and 57 (47%) died. IPC scores were low in the areas of technical guidelines, human resources, and monitoring and evaluation. Of the 30 environmental samples, 4 grew BCC. A single source of the outbreak was not identified.Conclusions:Implementing standardized HAI surveillance in a low-resource setting detected an ongoing Burkholderia cepacia outbreak. The outbreak investigation and use of a multimodal approach reduced incident cases and informed changes in IPC practices.
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- 2022
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7. Novel linear plasmids carrying vanA cluster drives the spread of vancomycin resistance in Enterococcus faecium in India
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Yamuna Devi Bakthavatchalam, Mamta Puraswani, Abel Livingston, Monisha Priya, Dhanalakshmi Venkatesan, Divya Sharma, Ramya Iyadurai, Kishore Pichamuthu, Balaji Veeraraghavan, and Purva Mathur
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Microbiology (medical) ,Enterococcus faecium ,Immunology ,Humans ,Immunology and Allergy ,Vancomycin Resistance ,Microbiology ,Gram-Positive Bacterial Infections ,Multilocus Sequence Typing ,Plasmids ,Vancomycin-Resistant Enterococci - Abstract
The genetic basis for the spread of vancomycin resistance in Enterococcus faecium is largely unexplored in India. The present study aimed to investigate the plasmid diversity and variation of Tn1546 associated with vanA harbouring VREfm isolates.A total of 122 VREfm isolates collected from blood cultures were included in this study. MLST analysis was performed on all isolates, and they were also screened for the presence of vanA and vanB genes. Whole genome sequencing was performed for a subset of fifteen VREfm isolates belonging to ST1643.All of the 122 VREfm isolates carried the vanA gene. Twenty-four different sequence types were seen; of these, ST1643, ST80 and ST17 were predominant. Whole genome sequencing was performed on 15 VREfm isolates belonging to ST1643. For eight isolates the vanA gene was found on pRUM-like circular plasmids, and for the remaining seven isolates, the vanA gene was found on the linear plasmids. Novel Tn1546 variants carrying vanA were found on both circular and linear plasmids. Interestingly, co-presence of vanA and optrA were seen in the backbone of three linear plasmids.Multiple vanA-carrying plasmids and Tn1546-like elements were involved in the dissemination of vancomycin resistance in VREfm. The co-occurrence of Tn1546 carrying vanA and Tn554 family transposon carrying optrA on the backbone of plasmids is worrisome. The dissemination of such plasmids may pose treatment and infection control challenges.
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- 2022
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8. Clinical Validation of Standard Q COVID-19 Antigen and IgM/IgG Combo Kit Assay at a Tertiary Care Center in Northern India
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Parul, Singh, Vandana V, Kiro, Sharad, Srivastav, Rajesh, Malhotra, and Purva, Mathur
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Background Expansion of the testing capacities for severe acute respiratory syndrome-coronavirus-2 is an important issue in the face of ever-increasing case load. So, there is need of point-of-care diagnostic tests in the existing laboratory capacities for early treatment, isolation, and clinical decision making, especially in resource limited settings. Materials and Methods This prospective cohort study was conducted at Jai Prakash Narayan Apex Trauma Center, All India Institute of Medical Sciences, New Delhi. Nasopharyngeal samples and blood samples were collected for antigen and antibody testing. Rapid antigen test was performed as per the kit's instructions. The performance of the kit was compared with the gold standard reverse transcription polymerase chain reaction (RT-PCR) testing. Results Eighty-eight out of 110 patients tested positive by RT-PCR for coronavirus disease 2019 in last 48 to 72 hours were included in the study. Overall, the sensitivity of combined antibody test was 52%, antigen test 26%, and combined sensitivity of both antigen and antibody was 72.7%, respectively. Conclusion The combo kit needs to be used with caution in low prevalence settings, where cases may be missed.
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- 2022
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9. Self-reported survey on infection prevention and control structures in healthcare facilities part of a national level healthcare associated infection surveillance network in India, 2019
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Randeep Guleria, Sonal Katyal, Bijayini Behera, Ashutosh Srivastava, Arunaloke Chakrabarti, Vimala Venkatesh, Padma Das, Vijayshri Deotale, Rajni Gaind, Sulochana Devi, Vibhor Tak, Tapan Majumdar, Chiranjay Mukhopadhyay, Swagata Tripathy, Shaista Nazir, Neeta Khandelwal, Sanjay Bhattacharya, Camilla Rodrigues, Sujata Baveja, Priscilla Rupali, Prachi Verma, Raja Ray, Bashir Ahmad Fomda, Sharad Srivastav, Vijaya Lakshmi Nag, Rajesh Malhotra, Chand Wattal, Purva Mathur, Rajni Sharma, Reema Nath, Dhanapaul Sankara, Omika Katoch, Premkumar Thangavelu, Lata Kapoor, Thirunarayan Ma, A. B. Dey, Manisha Biswal, Kanne Padmaja, Prithwis Bhattacharyya, Jyoti A. Iravane, Satyajeet Mishra, Pradeep Kumar, Sanjeev Singh, Vandana Kalwaje Eshwara, Muralidhar Varma, Tadepalli Karuna, Pallab Ray, and Kamini Walia
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Healthcare associated infections ,Quality management ,Epidemiology ,Control (management) ,World health ,Surveys and Questionnaires ,parasitic diseases ,Health care ,medicine ,Humans ,Infection control ,National level ,cardiovascular diseases ,Cross Infection ,Infection Control ,Health professionals ,business.industry ,Health Policy ,Public Health, Environmental and Occupational Health ,medicine.disease ,Cross-Sectional Studies ,Infectious Diseases ,Health Facilities ,Self Report ,Medical emergency ,business ,Delivery of Health Care - Abstract
Introduction Healthcare associated infections (HAIs) are prevalent and difficult to treat worldwide. Most HAIs can be prevented by effective implementation of Infection Prevention and Control (IPC) measures. A survey was conducted to assess the existing IPC practices across a network of Indian Hospitals using the World Health Organization designed self-assessment IPC Assessment Framework (IPCAF) tool. Methods This was a cross sectional observation study. Thirty-two tertiary care public and private facilities, part of the existing Indian HAI surveillance network was included. Data collected was analysed by a central team at All India Institute of Medical Sciences (AIIMS), New Delhi, a tertiary care hospital of India. The WHO questionnaire tool was used to understand the capacity and efforts to implement IPC practices across the network. Results The overall median score of IPCAF across the network was 620. Based on the final IPCAF score of the facilities; 13% hospitals had basic IPC practices, 28% hospitals had intermediate and 59% hospitals had advanced IPC practices. The component multimodal strategies (CC5) had the broadest range of score while the component IPC guidelines had the narrowest one. Conclusion Quality improvement training for IPC nurses and healthcare professionals are needed to be provided to health facilities.
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- 2022
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10. Surveillance for surgical site infections in orthopedic trauma surgeries at an Indian hospital
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Purva Mathur, Samarth Mittal, Vivek Trikha, Sharad Srivastav, R.M. Pandey, Sonal Katyal, Parul Singh, Surbhi Khurana, Rajesh Malhotra, and Kamini Walia
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Microbiology (medical) ,Risk Factors ,Aftercare ,Humans ,Surgical Wound Infection ,Pilot Projects ,Hospitals ,Patient Discharge - Abstract
Surgical site infections (SSIs) are one of the most common, causing substantial morbidity, mortality and are highly cost-effective means of reducing healthcare associated infections rates in health care set-ups. In India, there is no existing system for systematic surveillance of SSIs, encompassing post-discharge period.An indigenous SSI e-surveillance software was developed. Patients developing SSI as per standard definitions were included in the study. A denominator form and a case report form were filled for each case of SSI detected. The microbiological diagnosis was done as per standard methods. Logistic regression analysis was used to test for association of SSI and risk factors and determining the prevalence odds ratios.Of the total of 850 patients enrolled in the SSI surveillance, 47 (5.5%) developed SSI. Most patients (490/850, 58%) underwent the open reduction internal fixation (ORIF) and also developed an SSI (33/490, 6.7%). Clean contaminated wound class and Dressing were found to be associated with increased risk of SSI significantly, Also increase in the length of stay was found to be associated with increased risk of SSI significantly. High antimicrobial resistance was observed in the microbial isolates recovered from SSIs. Patients who developed SSI had longer hospital stays.Our study has been the first systematic surveillance effort in India, where patients were followed up till six months post surgeries. This pilot study was later expanded to other Indian hospitals. This network of SSI-Surveillance will lay the foundation for initiation of SSI-surveillance across the country.
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- 2022
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11. Impact of surgical site infection on unplanned hospital readmissions, initiation of adjuvant treatment following surgery, and disease‐free survival on patients with upper aerodigestive tract squamous cell carcinoma
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Shivakumar Thiagarajan, Teja Kantamani, Pranav Sathe, Ratan Shetty, Anuja Deshmukh, Devendra Chaukar, Sanjay Biswas, Jigeeshu V. Divatia, Sharad Srivastav, Purva Mathur, and Sheila Nainan Myatra
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Oncology ,Surgery ,General Medicine - Published
- 2023
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12. E. hirae Causing Biliary Tract Infection in a Patient with Cholangiocarcinoma: A Case Report
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Purva Mathur, Neha Sharad, Smriti Srivastava, Aparna Ningombam, and Rajesh Malhotra
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Microbiology (medical) ,Pharmacology ,Molecular Medicine ,General Medicine - Abstract
Introduction: E. faecium and E. faecalis are the common species of Enterococcus responsible for the majority of infections. Earlier, species other than the common ones were usually unidentified and reported as Enterococcus species. However, modern equipment, like MALDI-TOF and VITEK2, have been utilitarian, helping us to identify the previously unidentified species. E. hirae is an organism seldom reported to cause human infections. Here, we report a case of a biliary tract infection in a female patient with cholangiocarcinoma caused by E. hirae. Case: A 56-year-old female presented with fever and abdominal pain. Bile aspirated during the ERCP was received in our laboratory. The gram stain of the bile sample revealed abundant polymorphonuclear leucocytes along with gram-positive diplococci. The organism failed to grow on MacConkey agar. On blood agar, non-hemolytic colonies grew. The organism was identified as E. hirae by MALDI-TOF MS. The antibiotic susceptibility performed using VITEK2 revealed it to be resistant to high-level gentamicin and susceptible to all remaining drugs. She was successfully treated with oral ciprofloxacin for the infection. Discussion: Bile is colonized with bacteria due to obstruction in the biliary tree, leading to cholangitis. This causes bacterial proliferation and translocation of bacteria into the systemic circulation. Our case was resistant to high-level gentamicin, while all previously reported cases were susceptible. The resistant isolates of E. hirae being isolated from cattle and their surroundings amidst the rampant use of antibiotics in livestock can pose a difficult situation for humans. Thus, there should be regulations on antibiotic usage in livestock. Cases like these should be reported and recognized for their potential to cause outbreaks if they remain unreported. Conclusion: Thus, E.hirae, when encountered, should not be ignored but considered a pathogen and reported. The presence of drug-resistant organisms in cattle and their surroundings, their zoonotic potential causing infections in humans, and the uncontrolled usage of antibiotics in livestock are the major causes for the disaster. Thus, we need to be more vigilant regarding it in the future.
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- 2023
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13. Myelin degradation, axonal changes and expression trajectories of glial cells stimulated by rapid head insult in humans to estimate approximate time elapsed since trauma
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Meenakshi Sharma, Arulselvi Subramanian, Vaishali Suri, Purva Mathur, Shyam Prakash, Nabarun Chakraborty, Deepak Agrawal, R. M. Pandey, Anupuma Raina, Rajesh Malhotra, and Sanjeev Lalwani
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Health (social science) ,Law ,Pathology and Forensic Medicine - Abstract
Background Post severe traumatic brain injury (sTBI), axonal alterations lead to myelin loss and its degeneration. In the recovery phase, numerous intermingled biochemical pathways involving complex inflammatory reactions cloud the understanding of this yet undiscerned process that also varies with agonal period. In cases with dubious histories, approximating the survival time can be challenging, and expression levels of characteristic markers may aid forensic experts in the same. Methods This exploratory study recruited 100 samples—68 sTBI, 22 non-TBI and 10 age- and sex-matched control samples. Male:female ratio was 87:13. Histochemical staining using H&E was used to characterize myelination pattern, and IHC of GFAP and CD-68 were performed to assess astroglial and microglial reactions with respect to survival time in specific sites. Result Among sTBI, non-TBI and control recruits, sTBI patients depicted significant myelination abnormalities, astroglial proliferation and microglial reaction and varying with survival time. Non-TBI and control samples depicted nearly similar profiles. Conclusion In order to untangle the complex mesh of biochemical responses, nuanced research on individual factors (both pre- and post mortem) with regard to specific site and survival time are warranted. Standardizing experimental data and converting it into empirical data shall aid forensic experts in suggesting approximate agonal period.
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- 2023
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14. Spectrum and Trends of Intestinal Parasitic Infections at a Tertiary Care Hospital during Pandemic Times: A Laboratory-Based Retrospective Study
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Suneeta Meena, Jitendra Kumar Meena, Dinesh Kumar, and Purva Mathur
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General Medicine - Abstract
Background Intestinal parasitic infections continue to loom in developing countries with low sanitation and socioeconomic conditions. Pandemic times are especially important to study the prevalence of these pathogens since the focus of all healthcare services was coronavirus disease 2019 (COVID-19). This study aimed to evaluate the prevalence and time-trend of intestinal parasitic infections in the capital region of India during the pandemic times. Methods In this cross-sectional study, a retrospective review based on data from the past 2 years in the post-COVID-19 pandemic was used. Descriptive and time-trend analyses were applied to the data. Time series analysis was analyzed using the best fit autoregressive integrated moving average (ARIMA) model to look for seasonality in trends and forecasting. Results A total of 7267 patients' stool samples over a 2-year pandemic period were included in the study. Intestinal parasites were detected in 11.18% (813/7276) patients. Giardia lamblia (2.28%) and Blastocystis hominis (3.78%) were the predominant ones. Time-trend analysis from 2020 to 2021 using ARIMA model predicted an increasing trend with waning of pandemic. The most prevalent infection was found in the monsoon and autumn months. Conclusion Rates of infection with Giardia lamblia and Blastocystis hominis have increased in comparison to other protozoan infections like Entamoeba histolytica when compared with prepandemic hospital-based studies. With fading of the pandemic, further increasing trends are predicted.
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- 2023
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15. Microsporidia in HIV-Positive and HIV-Negative Pediatric Patients with Diarrhea at a Tertiary Care Hospital
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Dinesh Kumar, Varun Goel, Suneeta Meena, Purva Mathur, Sushil Kumar Kabra, Rakesh Lodha, and Sarman Singh
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General Medicine - Abstract
Background Human microsporidiosis presents as an important and rapidly emerging opportunistic infection. However, the exact burden of this infection especially in the pediatric population of Northern India remains unknown. In this study, we investigated the prevalence of microsporidia among human immunodeficiency virus (HIV)-positive and HIV-negative pediatric patients who presented with diarrhea. Methods A total of 263 children were recruited consisting of 98 HIV seropositive with diarrhea and 165 HIV seronegative but with diarrhea. Morning stool samples were collected and both direct and formol ether concentrated samples were examined for the presence of intestinal parasites. The modified acid-fast staining was done for coccidian parasites and trichrome stain for microsporidia detection. Further, the species were detected using a real-time polymerase chain reaction (PCR) targeting a conserved region of the small ribosomal subunit rRNA gene of Enterocytozoon bieneusi, Encephalitozoon hellem, Encephalitozoon intestinalis, and Encephalitozoon cuniculi. Results Overall, one or more parasites were detected in 52.04% (51/98) of HIV seropositive and 53.33% (88/165) of seronegative children (p = 0.8391). However, coccidian parasites were detected in a significantly huge number of HIV seropositive children (21.43% [21/98]) as compared with HIV seronegative children (4.24% [7/165]). Microsporidial DNA could be detected in HIV seropositive with diarrhea children (17.35% [17/98]) by PCR. A significant correlation between low CD4 count (≤ 200/μL) and intestinal parasite positivity could be established. Conclusion Microsporidia is a significant cause of diarrhea in HIV seropositive pediatric patients and should be kept in mind as one of the differential diagnoses in such patients.
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- 2023
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16. Antimicrobial consumption in intensive care unit patients at level 1 trauma centre in India
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Amit Lathwal, Parul Singh, Ashish Bindra, Purva Mathur, Deepak Gupta, Kamini Walia, Anjan Trikha, and Rajesh Malhotra
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Microbiology (medical) ,medicine.medical_specialty ,medicine.drug_class ,business.industry ,Antibiotics ,Antimicrobial ,Intensive care unit ,Anti-Bacterial Agents ,law.invention ,Intensive Care Units ,Defined daily dose ,Antibiotic resistance ,Anti-Infective Agents ,Trauma Centers ,law ,Intensive care ,Emergency medicine ,medicine ,Humans ,Antimicrobial stewardship ,Prospective Studies ,business ,Infection Control Practitioners - Abstract
Purpose Increase in the antimicrobial resistance causes a concern globally. To mitigate the rapidly rising antimicrobial resistance in the health system globally antimicrobial stewardship programs (AMSP) have been advocated. Therefore, we aim to measure aggregate antibiotic consumption by both Defined Daily Dosage (DDD) and Days of Therapy (DOT) methods. Methods As a part of Indian Council of Medical Research initiative to develop local AMSP, this prospective study of six months was conducted at a level -1 Trauma Centre of AIIMS, New Delhi. In this, we have included all the patients of polytrauma and neurosurgical Intensive care units between April to October 2019. Consumption of antibiotics data were collected manually daily by infection control practitioners. Data were presented as Days of Therapy (DOT) and Defined Daily Dose (DDD). Results During the six months of study, antimicrobial consumption of ICU was compared with empirical therapy v/s culture-based therapy. Overall average antimicrobial consumption for the six months for both empirical therapy and culture-based therapy DDD/1000 patient days was 531.8 and 460.7 whereas DOT/1000 patient days 489.9 and 426.04 respectively. Conclusions Antimicrobial Stewardship activities aim to ensure judicious consumption of antimicrobials. Such data will be of value in establishing, evaluating and monitoring the function of the AMSP in the healthcare settings.
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- 2022
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17. Secondary Bacterial Infections in Mucormycosis-COVID-19 Cases: Experience during the Second COVID-19 Wave in India
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Neha Sharad, Smriti Srivastava, Parul Singh, Mamta Puraswani, Sharad Srivastav, Rajesh Malhotra, Anjan Trikha, and Purva Mathur
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Microbiology (medical) ,Infectious Diseases ,General Immunology and Microbiology ,Ecology ,Physiology ,Genetics ,Cell Biology - Abstract
In the second wave of COVID-19 in India, there was a new challenge in the form of mucormycosis. Coinfection with mucormycosis was perilous as both conditions required a prolonged hospital stay, thus serving as an ideal platform for secondary infections. Using a retrospective observational study, we studied secondary infections and their impact on the outcome in COVID-19 patients with mucormycosis. The outcome in these patients was evaluated and compared with COVID-19 patients with mucormycosis but without any secondary infection. SPSS V-20 was used for data analysis. Fifty-five patients tested positive for mucormycosis (55/140; 39.28). Twelve out of these 55 (21.8%) developed secondary infections during their hospital stay. Bloodstream infection was the most common (42.86%) secondary infection. The Gram-negative (GN) organisms were more common (11/16; 68.75%) compared with the Gram-positives (GP) (5/16; 31.25%). But the most common isolate was Enterococcus faecium (5/16; 31.25%). A high percentage of microorganisms isolated were multidrug-resistant (15/16; 93.75%). Two out of five (40%) isolates of Enterococcus faecium were vancomycin-resistant (VRE). High resistance to carbapenems was noted in the GN isolates (9/11; 81.81%). The comparison of length of stay in both subgroups was statistically significant (
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- 2022
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18. Healthcare-associated Infections in Pediatric Patients in Neurotrauma Intensive Care Unit: A Retrospective Analysis
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Purva Mathur, Pankaj Kumar Singh, Chandrakant Prasad, Gyaninder Pal Singh, Parul Singh, and Ashish Bindra
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Pediatric ,Healthcare associated infections ,Pediatric Critical Care ,medicine.medical_specialty ,Traumatic brain injury ,business.industry ,Critical Care and Intensive Care Medicine ,medicine.disease ,Trauma ,Intensive care unit ,law.invention ,law ,Emergency medicine ,medicine ,Retrospective analysis ,Healthcare-associated infection ,business - Abstract
Background Healthcare-associated infections (HAIs) can impact the outcome following traumatic brain injury (TBI) in children. We undertook a retrospective observational study to see the incidence, risk factors, and microbiological profile for HAIs in pediatric TBI. We also studied the impact of baseline patient characteristics, HAIs on patient outcome, and antibiotic resistance of different types of bacteria. Materials and methods Data on pediatric TBI patients of age up to 12 years were collected via a computerized patient record system (CPRS) from January 2012 to December 2018. Descriptive Chi-square test and Wilcoxon signed rank test were used to characterize baseline parameters. General linear regression models were run to find an unadjusted and adjusted odds ratio (OR). Results HAIs were found in 144 (34%) out of 423 patients. The most commonly seen infections were of the respiratory tract in 73 (17.26%) subjects. The most predominant microorganism isolated was Acinetobacter baumannii in 188 (41%) samples. A. baumannii was sensitive to colistin in 91 (48.4%) patients. Male gender (OR 0.630; p-value 0.035), fall from height (OR 0.374; p-value 0.008), and higher injury severity scale (ISS) (OR 1.040; p-value 0.002) were independent risk factors for development of HAIs. Severe TBI, higher ISS and Marshall grade, and HAIs were significantly associated with poor patient outcome. Conclusion Severe TBI poses a significant risk of HAIs. The most common site was the respiratory tract, predominately infected with A. baumannii. HAIs in pediatric TBI patients resulted in poor patient outcome. How to cite this article Prasad C, Bindra A, Singh P, Singh GP, Singh PK, Mathur P. Healthcare-associated Infections in Pediatric Patients in Neurotrauma Intensive Care Unit: A Retrospective Analysis. Indian J Crit Care Med 2021;25(11):1308–1313.
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- 2021
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19. Comparison of Different Tidal Volumes for Ventilation in Patients with an Acute Traumatic Cervical Spine Injury
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Deep, Sengupta, Ashish, Bindra, Indu, Kapoor, Purva, Mathur, Deepak, Gupta, and Maroof A, Khan
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Neck Injuries ,Spinal Injuries ,Acute Disease ,Cervical Vertebrae ,Tidal Volume ,Humans ,Prospective Studies ,Respiratory Insufficiency ,Respiration, Artificial - Abstract
There is scant literature comparing high tidal volume ventilation (HTV) over low tidal volume (LTV) ventilation in acute traumatic cervical spinal cord injury (CSCI).The aim of this prospective randomized controlled parallel-group, single-blinded study was to compare the effect of two different tidal volumes (12-15 mL/kg and 6-8 mL/kg) in CSCI on days to achieve ventilator-free breathing (VFB), PaOWe enrolled patients with acute high traumatic CSCI admitted to the neurotrauma intensive care unit within 24 h of injury, requiring mechanical ventilation. Participants were randomized to receive either HTV, 12-15 mL/kg (group H) or LTV, 6-8 mL/kg (group L) tidal volume ventilation.A total of 56 patients, 28 in each group were analyzed. Patient demographics and injury severity were comparable between the groups. VFB was achieved in 23 and 19 patients in groups H and L, respectively. The median number of days required to achieve VFB was 3 (2, 56) and 8 (2, 50) days, P = 0.33; PaO
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- 2022
20. P296 The role of Candida in acute pancreatitis: A disregarded pathogen
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Smriti Srivastava, Neha Sharad, Aparna Ningombam, Vandana Kiro, Sharin Varma, Rajesh Malhotra, and Purva Mathur
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Infectious Diseases ,General Medicine - Abstract
Poster session 2, September 22, 2022, 12:30 PM - 1:30 PM Background Acute pancreatitis is often complicated by infection of peri-pancreatic necrotic tissue. The infectious etiology commonly involves gram negative enteric bacilli and enterococci. Role of Candida species has remained debatable, despite being isolated in pure or mixed cultures in specimens. We evaluated patients with acute pancreatitis with Candida infection over a duration of 4 years for assessment of risk and prognostic factors. Objectives To determine the prevalence and role of Candida infection in patients of acute pancreatitis and ascertain the species distribution and risk factors. Methods This study was conducted including adult patients who were admitted to gastro-surgery department and had clinical suspicion of peri-pancreatic fungal infection. Specimens included peri-pancreatic fluid collection obtained intra-operatively or aspirated USG-guided, drain fluid and blood. In addition to aerobic bacterial culture, fungal cultures were performed availing standard mycological procedures. Candida infections were categorized into true and possible as per Chakraborty et al. with some modifications. True Candida infection of pancreatic tissue was considered when yeast cells were seen and grown in pure or mixed culture from Possible Candida infection of pancreatic tissue was considered when Candida spp were isolated from Relevant patient information was obtained from hospital information system. Data were analyzed by SPSS 20 statistical software and MS Excel. Results A total of 14 cases were identified amongst which 6/14 (42.9%) had true Candida infection whereas possible Candida infection was seen in 8/14 (57.1%) patients. Out of these, C. tropicalis was the predominant species seen in 9/14 (64.3%) whereas C. albicans was seen in 4/14 (28.6%). One isolate of C. auris was identified. Patients with C. tropicalis infection showed higher mortality (6/9, 66.7%) as compared with patients with other Candida species, in whom 20% (1/5) mortality was noted. Acknowledging limitations inherent to retrospective data extraction, we delineated some of the possible risk factors predisposing to Candida infection, given in Table 1. Conclusion Role of Candida species in the pathogenesis of adjacent tissues in case of acute pancreatitis has been neglected in past, but now being increasingly recognized. C. tropicalis is the commonest isolate in our study and carries very high mortality. Screening for Candida spp should be carried out in these patients in view of starting antifungal treatment at the earliest possible so that proper diagnosis and management can be undertaken.
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- 2022
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21. P222 Epidemiology of Candida emia at level-1 trauma care cent er in North India
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Vandana Kiro, Neha Sharad, Smriti Shrivastava, Sharin Varma, Aparna Ningombam, and Purva Mathur
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Infectious Diseases ,General Medicine - Abstract
Poster session 2, September 22, 2022, 12:30 PM - 1:30 PM Objective Patients affected by trauma who get admitted to critical care units experience prolonged hospitalization and thereby acquire several infections. This retrospective observational study was done from 2014 to 2021 to observe Candidaemia affecting this population. A total of 4816 patients admitted with traumatic injuries and hospitalized for treatment at ICU in our 190 bedded Level-1 Trauma center underwent this study. Methods Paired blood samples were collected from patients showing signs of sepsis and incubated and monitored regularly by the BacT/ALERT system (bioMe´rieux InC., Marcy l'Etoile, France). All the positive signal samples exhibiting budding yeast cells on Gram stain were subcultured on Chrome agar and Sabouraud dextrose agar. Pure growths obtained were subjected for identification and susceptibility by MALDI-TOF and VITEK 2 system. Results Out of the 4816 patients, 61 were affected by Candidaemia. Out of 61, the maximum was in the age group of 31-40 years (19.7%). Male preponderance (50/61, 82%) was exhibited compared to females. To ascertain Candidaemia, samples collected were blood (63/66, 95.5%) and CVP tip (3/66, 4.5%). Candidaemia was primarily observed in patients who suffered major orthopedic trauma (14/61, 21.2%). A total of 66 Candida species were isolated from samples of these patients. Out of these, Candida tropicalis (43.9%) was the most common, followed by C. parapsilosis (22.7%), C. albicans (21.2%), C. haemulonii (4.5%), C. glabrata (3%), C. rugosa (3%), and C. guilliermondii (1.5%). Concerning antifungal resistance, fluconazole resistance was 16.6% (11), flucytosine 1.5% (1), amphotericin B 6% (4), and micafungin 3% (2). Voriconazole was resistant to none but intermediate to 12.1% (8), caspofungin was intermediate to 3% (2), and resistant to none. A total of 47% (31/61) of patients succumbed to their injuries which were observed highest in the age group of 61-70 years (8/61, 25.8%). The most common injuries that the deceased suffered were polytrauma (9/61, 29%) and blunt trauma abdomen (9/61, 29%). Maximum mortality was also observed in patients with Candidaemia due to Candida tropicalis (15/61, 48.3%). Conclusion Candidaemia is usually fatal. Mortality due to Candidaemia increases in patients with severe traumatic injuries and added risk factors such as extremes of age, immunocompromised state, and broad-spectrum antibiotics. When compared to a similar study done in our center from 2009 to 2012 (3 years) on Candidaemia in ICU patients, the incidence was lower in our study (12.6% per 1000 ICU admissions vs 14.9% per 1000 ICU admissions), but the mortality rate was higher (47% vs 43.3%). Therefore, a watchful eye on early signs of sepsis, strict hospital infection control measures and antimicrobial stewardship may alter their outcome.
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- 2022
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22. P385 Candida auris: a growing threat to global health
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Sharin Varma, Smriti Srivastava, Neha Sharad, Vandana Kiro, Aparna Ningobam, and Purva Mathur
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Infectious Diseases ,General Medicine - Abstract
Poster session 3, September 23, 2022, 12:30 PM - 1:30 PM Background and Objectives The emerging pathogen, C. auris, has been associated with nosocomial outbreaks in recent times. The true scale of the problem is difficult to comprehend due to several issues with the identification of C. auris using both phenotypic and molecular techniques. Most commonly, these isolates have been misidentified as C. haemulonii. Biofilm formation is strongly suggested given its association with intensive care settings, especially in patients with CVCs and long-term urinary catheters. Many isolates of C. auris have also shown raised MICs to multiple classes of antifungal agents, raising the possibility of pan-drug resistance. Objective To study the demographic characteristics, risk factors, and outcomes in patients with C. auris infection. Methodology This is a retrospective study from a tertiary care hospital (JPNATC, AIIMS) including all patients from the time period of 2018-2022 that showed growth of C. auris in any site. C. auris was identified using conventional methods (pale-pink growth on chromogenic medium, no pseudohyphae on germ-tube test, growth in presence of 10% NaCl) and VITEK-2. To reduce the misidentification and the intertest variability, the results were confirmed with MALDI-TOF. The risk factors and other patient information were taken from the HIS. Statistical analysis was performed. Results During the study period, a total of 31 patients had a C. auris infection. The most common age group was 20-40 years (n = 11,44%) with a preponderance in males (n = 23,74%). A total of 74% of the infections were found in blood, which was the most common site of infection followed by urine (10%). The other sites were pus-from-wound (n = 2), groin, nailbeds, and CVP tip (n = 1). Most of the cases were ICU patients (86%). All the patients with candidemia due to C. auris (n = 17 100%) had CVC, had surgery within the past 30 days, and were on broad-spectrum antibiotics and TPN. 71% (n = 12) had a history of immunosuppression and 18% (n = 14) had a history of prior antifungal therapy. Although 100% (n = 17) had the presence of an indwelling urinary catheter, none of them had candiduria due to C. auris. No patient with C. auris infection had neutropenia. The median LOS was 34.5 days. Most of the isolates were resistant to fluconazole (n = 13,93%), amphotericin B (n = 13,93%), voriconazole (n = 6,55%), flucytosine (n = 10,71%). A total of 87% (n = 12,87%) of isolates were sensitive to caspofungin and micafungin by VITEK-2 (limitation of this study). In all, 28% (n = 7) of the patients died whereas 40% (n = 10) were discharged. A total of 75% patients had clearing of the persistent candidemia when treated with caspofungin whereas only 25% patients had clearing of the candidemia when treated with voriconazole. Conclusion Most cases of C. auris infection were found in critical patients with the most common presentation being candidemia. The risk factors are similar to any other Candida infection. C.auris is the leading antimicrobial-resistant fungi and poses an additional burden to the healthcare system. The fungus has a high crude-mortality rate and we are running out of treatment options. A comprehensive intervention program with ongoing surveillance and good AMR practices is the need of the hour to reduce the burden of this dangerous pathogen.
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- 2022
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23. P282 Bacterial co-infections in Mucormycosis infected COVID-19 patients: experience from a tertiary care center in India
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Neha Sharad, Smriti Srivastava, Aparna Ningombam, Vandana Kiro, Sharin Varma, Sharad Srivastav, Rajesh Malhotra, and Purva Mathur
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Infectious Diseases ,General Medicine - Abstract
Poster session 2, September 22, 2022, 12:30 PM - 1:30 PM During the second wave of COVID-19 in India, there was a deluge in Mucormycosis cases; which posed a serious threat as both conditions require extended hospital stay thus serving as an ideal setting for secondary infections. Objectives 1. To ascertain the prevalence and anti-microbial profile of hospital-acquired secondary infections in COVID- 19 patients with Mucormycosis. 2. To evaluate the outcome in these patients and compare it with the outcome of COVID-19 patients with Mucormycosis but without any other secondary infection. Methods A 2-month retrospective observational study was conducted, where we compared outcomes in two groups of COVID-19 patients with Mucormycosis, one group being patients with secondary infections and the other group including patients without secondary infections. A total of 180 samples from suspected cases of Mucormycosis, that underwent evaluation by conventional methods, KOH mount and cultures on SDA, were included. Fungal pathogens were identified from the positive cultures, based on macroscopic and microscopic features, as per standard Mycological methods. Secondary infections inpatients were studied based on conventional bacteriological culture, microbiological profile, along-with identification and antibiotic susceptibility by VITEK 2. PCT and CRP values were also compared. The outcome was then evaluated. Data analysis was done using SPSS V-20. Results A total of 55 patients out of 140 patients, tested positive for Mucormycosis, either by KOH, culture or both. Rhizopus arrhizus was the most common isolate identified. A total of 12/55 (21.8%) people with Mucormycosis developed secondary infections during their stay in the hospital, bloodstream infection being the most common (7/15; 46.67%). Overall, gram-negative (GN) organisms were more common (11/16; 68.75%), in comparison to Gram Positives (GP) (5/16; 31.25%), but the most common organism isolated was Enterococcus faecium (5/16; 31.25%), followed by Klebsiella pneumoniae (4/16) and E. coli (4/16). A total of 4/5 isolates (80%) of Enterococcus faecium were multi-drug resistant (MDR) and two of them were vancomycin-resistant. In all, 10/11 GN isolates (90.9%) were MDR, high resistance to carbapenems was observed, nine out of 11(81.81%) isolates were resistant to imipenem and eight (72.72%) were resistant to meropenem. A total of 3/12 (25%) patients succumbed to their infection in the group with secondary infections, after an average length of stay of 23.33 days. The most common cause of death in these patients was septic shock. A total of 8/43 (18.6%) succumbed to their infection in the group without any secondary infection at an average stay of 9.12 days in the hospital. CRP was found to be consistently elevated, this biomarker might not have a predictive value for bacterial infections in COVID-19 but PCT had a positive predictive value for the secondary bacterial infections overall (P-value Conclusion Culture-based testing should be carried out before the administration of anti-microbials. PCT can be used as a guiding tool. Controlled use of antibiotics along with periodic surveillance and hand hygiene practices will immensely contribute to infection control.
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- 2022
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24. P150 Profile of Candidemia in a national level HAI Surveillance Network of India
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Sharad Srivastav, Mamta Puraswani, Prachi Tewari, and Purva Mathur
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Infectious Diseases ,General Medicine - Abstract
Poster session 2, September 22, 2022, 12:30 PM - 1:30 PM Background Candida is responsible for roughly 96% of all opportunistic mycoses and is a major cause of bloodstream infections (BSIs). The potential for nosocomial spread of Candidemia infections is a new concern concurrent with the rapid expansion of intensive care facilities for COVID-19 patients. With the pandemic of COVID-19 now moving into 2022, it is understood that critically ill COVID-infected patients in the ICUs are commonly infected with highly resistant bacterial and fungal infections. Objective To estimate the incidence rates and compare the epidemiology of candidemia in COVID infected and non-infected patients requiring ICU care. Methodology In this 2-year retrospective multicentric study, we present the findings on candidemia from the Healthcare-Associated Infections (HAI) surveillance network which includes 40 hospitals across India and with special emphasis on differences in the epidemiology of Candidemia in COVID infected and non-infected patients in the pre-COVID (April 2019 to April 2020) and COVID times (April 2020 to April 2021) across this network. We compared the incidence of candidemia between COVID infected and non-infected patients using Poisson regression analysis. Chi-squared (χ2) test was used to test for differences in variables such as gender and 14-day mortality between the patients and Wilcoxon rank-sum (Mann-Whitney) test was used to compare median between the patients. Results A total of 628 patients with candidemia were screened from HAI Surveillance Database where 68 patients are COVID infected and 560 non-infected patients from both pre-COVID and COVID periods. Incidence of Candida-associated BSI increased significantly from 1.47 (95% CI, 1.35-1.60) to 3.08 (95% CI, 2.38-3.92) in non-infected and COVID-infected patients respectively, while in CLABSI the rates increased from 2.62 (95% CI, 2.34-2.92) in non-infected to 5.99 (95% CI, 4.30-8.12) in COVID-infected patients. COVID infected patients in the age group (>60 years) were significantly more prone to candidemia compared to non-infected patients. During the COVID period, the maximum time for candidemia to develop (from the time of ICU admission) in COVID-infected patients was shorter (90 days). Conclusion We observed an increased incidence of candidemia in hospitalized patients during the COVID period compared with the same during the pre-COVID period.
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- 2022
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25. Distinctive Mobile Genetic Elements Observed in the Clonal Expansion of Carbapenem-Resistant Klebsiella pneumoniae in India
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Dip Narayan Mukherjee, Purva Mathur, Anita Sharma, Karthik Gunasekaran, Lavanya Natarajan, Camilla Rodrigues, Anudita Bharagava, Abi Manesh, Chaitra Shankar, Suganya Gopal Sugumar, Jobin John Jacob, Balaji Veeraraghavan, and D.S. Chitnis
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Microbiology (medical) ,Pharmacology ,High rate ,Carbapenem resistant Klebsiella pneumoniae ,Klebsiella pneumoniae ,Immunology ,K pneumoniae ,Biology ,biology.organism_classification ,Microbiology ,Colistin ,medicine ,Multilocus sequence typing ,Mobile genetic elements ,Pathogen ,medicine.drug - Abstract
Background: Klebsiella pneumoniae (Kp), a common multidrug-resistant pathogen, causes a wide spectrum of nosocomial infections with high rates of morbidity and mortality. The emergence of pan drug-...
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- 2021
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26. Antimicrobial Resistance in Enterobacteriaceae Bacteria Causing Infection in Trauma Patients: A 5-Year Experience from a Tertiary Trauma Center
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Omika Katoch, Surbhi Khurana, Purva Mathur, and Rajesh Malhotra
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disk diffusion ,0301 basic medicine ,Vitek2 ,antibiotic resistance ,030106 microbiology ,03 medical and health sciences ,030104 developmental biology ,Enterobacteriaceae ,Klebsiella spp ,Escherichia coli ,Medicine ,Original Article ,tigecycline - Abstract
Introduction Multiple drug resistance emergences among bacteria at an alarming rate worldwide are posing a serious threat to the treatment benefits that have been achieved with antibiotics. This crisis is due to the inappropriate and overuse of existing antibiotics. We evaluated the antimicrobial resistance pattern of Enterobacteriaceae pathogens isolated from intensive care units (ICUs), wards, and outpatient department (OPD) patients. Objectives The aim of the study is to determine the antimicrobial resistance pattern in bacteria of Enterobacteriaceae family. Material and Methods This is a retrospective study conducted at a tertiary care level-1 trauma center in the capital city of India. We collected all the retrospective data of 5 years from the laboratory information system software of the microbiology laboratory. The retrospective data included patients’ details, samples detail, organism’s identification, and their antimicrobial susceptibility testing, done by Vitek2 compact system and disk diffusion test according to each year’s Clinical and Laboratory Standards Institute (CLSI) guidelines. This study included the interpretation of zone diameters and minimum inhibitory concentrations of all isolates according to CLSI guidelines, 2018. Results Among all the Enterobacteriaceae, Klebsiella spp. was the most commonly isolated pathogen, followed by Escherichia coli and Enterobacter spp. in ICUs and wards, while in OPD patients E. coli was the most commonly isolated pathogen, followed by Klebsiella spp. and Enterobacter spp. Enterobacteriaceae isolates remained resistant to all classes of cephalosporins in all settings. In addition, β lactam and β-lactamase inhibitor remained less effective. Carbapenems showed less resistance than quinolones and aminoglycosides. Among the different antimicrobial agents, tigecycline proved most effective in all settings; however, it showed more resistance than other studies. Conclusion Tigecycline proved effective among different multidrug resistance bacteria. Multidrug resistance in bacteria leads to prolonged hospital stays as well as makes the treatment less cost effective. Proper and judicious use of antimicrobials is the need of the hour.
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- 2021
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27. Eight year study on evolution of antimicrobial resistance in an antimicrobial-naïve trauma population
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Mamta Puraswani, Sharad Srivastav, Richa Aggrawal, Kapil Dev Soni, Rajesh Malhotra, Subodh Kumar, Sushma Sagar, Amit Gupta, and Purva Mathur
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Microbiology (medical) ,Infectious Diseases ,General Immunology and Microbiology ,Immunology and Microbiology (miscellaneous) ,Immunology ,Immunology and Allergy ,Microbiology - Published
- 2023
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28. Hand-hygiene compliance: The importance of WHO's 'moment 1' in prevention of healthcare-associated infections
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Stuti Gupta, Jacinta Gunjiyal, Rajesh Malhotra, Sharad Srivastav, and Purva Mathur
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Microbiology (medical) ,Infectious Diseases ,General Immunology and Microbiology ,Immunology and Microbiology (miscellaneous) ,Immunology ,Immunology and Allergy ,Microbiology - Published
- 2023
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29. Utility of Serum Procalcitonin in Diagnosing Paroxysmal Sympathetic Hyperactivity in Patients with Traumatic Brain Injury
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Vineet Chowdhary, Purva Mathur, Keshav Goyal, Ashish Bindra, and Surya Kumar Dube
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medicine.medical_specialty ,Traumatic brain injury ,Case Report ,Critical Care and Intensive Care Medicine ,Procalcitonin ,law.invention ,Sepsis ,03 medical and health sciences ,0302 clinical medicine ,law ,Internal medicine ,Medicine ,In patient ,Traumatic brain injury (TBI) ,Paroxysmal sympathetic hyperactivity ,Biochemical markers ,business.industry ,030208 emergency & critical care medicine ,medicine.disease ,Intensive care unit ,030228 respiratory system ,Episodic fever ,PCT ,business - Abstract
Background Paroxysmal sympathetic hyperactivity (PSH) is a grave entity affecting patients following traumatic brain injury (TBI). It presents with cyclic and simultaneous fever, posturing, and other symptoms of sympathetic hyperactivity. Lack of diagnostic tests or biochemical markers and its propensity to mimic other common causes of fever in the neurotrauma intensive care unit (ICU) result in clinical dilemmas and management delay. Case Descriptions We present a case series of four patients (two adults and two pediatrics) with TBI who developed PSH during ICU stay. These patients presented with fever along with variable symptoms of sympathetic hyperactivity. However, the value of serum procalcitonin (PCT) was not elevated, and management of PSH was started. Serial monitoring of PCT helped in differentiating fever due to PSH from sepsis and thus the institution of appropriate and timely treatment of PSH and also helped to use antibiotics rationally. Conclusion The use of serum PCT in differentiating sepsis from systemic inflammatory reaction and its role in the initiation and titration of antibiotics are well described. PSH is a common entity after TBI, causing episodic fever and sympathetic hyperactivity, often confused with infectious pathology. Our report proposes the role of serum PCT in differentiating PSH from infectious etiology and management of two different clinical entities. How to cite this article Bindra A, Chowdhary V, Dube SK, Goyal K, Mathur P. Utility of Serum Procalcitonin in Diagnosing Paroxysmal Sympathetic Hyperactivity in Patients with Traumatic Brain Injury. Indian J Crit Care Med 2021;25(5):580–583.
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- 2021
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30. Point-Prevalence Survey for the Hospital-Acquired Infections in Intensive Care Units of Trauma Center in a Tertiary Care Hospital of Northern India
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Purva Mathur, Arun K Verma, Sandeep Boora, Parul Singh, Amit Lathwal, and Ashok Chauhan
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0301 basic medicine ,medicine.medical_specialty ,animal structures ,hospital-acquired infection ,business.industry ,030106 microbiology ,Trauma center ,Prevalence ,Developing country ,virus diseases ,03 medical and health sciences ,0302 clinical medicine ,Antibiotic resistance ,Intensive care ,Health care ,Emergency medicine ,Medicine ,Antimicrobial stewardship ,030212 general & internal medicine ,business ,acinetobacter baumannii ,Developed country ,point prevalence - Abstract
Background The burden of hospital-acquired infections (HAIs) is all assumption based, and the true burden remains unknown in most countries, particularly in the developing countries where healthcare facilities are suboptimal and knowledge is limited. Methodology This cross-sectional study was conducted at the trauma center of a tertiary care institute from August to September 2019, to assess the burden of HAI and antibiotic resistance pattern of HAI. The total sample size in our study was 105. Our objective was to estimate the point prevalence of HAI and study the associated factors in a tertiary care hospital. Result In this study, the point prevalence of HAI was five to six times higher when compared with that of developed countries. Gram-negative organisms were the predominant bacteria; with Acinetobacter baumannii the most common among them. Conclusion Point-prevalence survey is an important objective of the antimicrobial stewardship program; it will be helpful in controlling antimicrobial resistance and this tool plays a significant role in hospital settings. Our study is quite pertinent to assess the point prevalence of HAI. It will help in knowing the current prevalence and pattern of the HAI. Therefore, as healthcare administrators, we can further decrease the HAI for better patient outcomes in the future.
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- 2022
31. Rate of shed of SARS COV-2 viral RNA from COVID-19 cadavers
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Meenakshi Sharma, Megha Brijwal, Nabarun Chakraborty, Aashish Choudhary, Arbind Kumar, Sharad Srivastav, Parin Lalwani, Richa Agrawal, Kapil Dev Soni, Nirupam Madaan, Rajesh Malhotra, Purva Mathur, Sanjeev Lalwani, Lalit Dar, and Anjan Trikha
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Male ,Infectious Diseases ,SARS-CoV-2 ,Public Health, Environmental and Occupational Health ,Cadaver ,Humans ,Infant ,COVID-19 ,RNA, Viral ,Female ,General Medicine ,Prospective Studies - Abstract
At what rate does the RNA of SARS CoV-2 shed from cadavers? Although, there have been numerous studies which have demonstrated the persistence of the virus on dead bodies, there is a lack of conclusive evidence regarding the variation of viral RNA content in cadavers. This has led to a knowledge gap regarding the safe handling/management of COVID-19 decedents, posing a barrier in forensic investigations.In this study, we report the presence of RNA of SARS CoV-2 by real time RT-PCR, in nasopharyngeal swabs collected after death from two groups of bodies - one who died due to COVID-19 and the other who died due to other diagnoses. A prospective study on 199 corpses, who had tested positive for COVID-19 ante-mortem, was conducted at a tertiary care center. RNA testing was conducted at different time intervals (T1-T5).112(56.3%) died primarily due to COVID-19 and 87(43.7%) died due to other diagnoses. 144(72.4%) were male and 55(27.6%) were female. A total of 115 (57.8%) tested positive for COVID-19 after death at different time points. The mean age was 50.7 ± 18.9 years and the length of hospitalization ranged from 1 to 50 days with a mean of 9.2 ± 7.6 days. Realtime RT-PCR positivity of SARS CoV-2 RNA decreases with time.We observed that real time RT-PCR positivity, indicating viral RNA detection, decreases with time. Therefore, it is advisable to follow appropriate COVID-19 precautions to carry out scientific studies, medico-legal investigations and mortuary services on suspected/confirmed COVID-19 corpses.
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- 2022
32. Genomic Characterization of Mobile Genetic Elements Associated With Carbapenem Resistance of Acinetobacter baumannii From India
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Saranya Vijayakumar, Jobin John Jacob, Karthick Vasudevan, Purva Mathur, Pallab Ray, Ayyanraj Neeravi, Ashtawarthani Baskaran, Agilandeeswari Kirubananthan, Shalini Anandan, Indranil Biswas, Kamini Walia, and Balaji Veeraraghavan
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Microbiology (medical) ,Microbiology - Abstract
With the excessive genome plasticity, Acinetobacter baumannii can acquire and disseminate antimicrobial resistance (AMR) genes often associated with mobile genetic elements (MGEs). Analyzing the genetic environment of resistance genes often provides valuable information on the origin, emergence, evolution, and spread of resistance. Thus, we characterized the genomic features of some clinical isolates of carbapenem-resistant A. baumannii (CRAb) to understand the role of diverse MGEs and their genetic context responsible for disseminating carbapenem resistance genes. For this, 17 clinical isolates of A. baumannii obtained from multiple hospitals in India between 2018 and 2019 were analyzed. AMR determinants, the genetic context of resistance genes, and molecular epidemiology were studied using whole-genome sequencing. This study observed an increased prevalence of blaOXA–23 followed by dual carbapenemases, blaOXA–23, and blaNDM. This study identified three novel Oxford MLST sequence types. The majority of the isolates belonged to the dominant clone, IC2, followed by less prevalent clones such as IC7 and IC8. This study identified variations of AbaR4 and AbGRI belonging to the IC2 lineage. To the best of our knowledge, this is the first study that provides comprehensive profiling of resistance islands, their related MGEs, acquired AMR genes, and the distribution of clonal lineages of CRAb from India.
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- 2022
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33. An outbreak of
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Bashir, Fomda, Anoop, Velayudhan, Valan A, Siromany, Gulnaz, Bashir, Shaista, Nazir, Aamir, Ali, Omika, Katoch, Alphina, Karoung, Jacinta, Gunjiyal, Nayeem, Wani, Indranil, Roy, Daniel, VanderEnde, Neil, Gupta, Aditya, Sharma, Paul, Malpiedi, Kamini, Walia, and Purva, Mathur
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The burden of healthcare-associated infections (HAIs) is higher in low- and middle-income countries, but HAIs are often missed because surveillance is not conducted. Here, we describe the identification of and response to a cluster ofA 780-bed, tertiary-level, public teaching hospital in northern India.After detecting a cluster of BCC in the SICU, cases were identified by reviewing laboratory registers and automated identification and susceptibility testing outputs. Sociodemographic details, clinical records, and potential exposure histories were collected, and a self-appraisal of infection prevention and control (IPC) practices using assessment tools from the World Health Organization and the US Centers for Disease Control and Prevention was conducted. Training and feedback were provided to hospital staff. Environmental samples were collected from high-touch surfaces, intravenous medications, saline, and mouthwash.Between October 2017 and October 2018, 183 BCC BSI cases were identified. Case records were available for 121 case patients. Of these 121 cases, 91 (75%) were male, the median age was 35 years, and 57 (47%) died. IPC scores were low in the areas of technical guidelines, human resources, and monitoring and evaluation. Of the 30 environmental samples, 4 grew BCC. A single source of the outbreak was not identified.Implementing standardized HAI surveillance in a low-resource setting detected an ongoing
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- 2022
34. Crosstalk between T Helper Cell Subsets and Their Roles in Immunopathogenesis and Outcome of Polytrauma Patients
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Sushma Sagar, Purva Mathur, Rajesh Malhotra, Subodh Kumar, Nidhi Bhardwaj, Rahul Pal, Richa Aggarwal, Kapil Dev Soni, and Surbhi Khurana
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Critical Care and Intensive Care Medicine ,Th-22 ,Trauma ,Tr1 ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,RAR-related orphan receptor gamma ,medicine ,business.industry ,030208 emergency & critical care medicine ,iTregs ,T helper cell ,Th-17 ,medicine.disease ,Polytrauma ,nTregs ,Th-9 ,Crosstalk (biology) ,medicine.anatomical_structure ,030228 respiratory system ,Immunology ,Th-3 ,Early phase ,business ,Homeostasis ,Research Article ,IRF4 - Abstract
Purpose One of the leading causes of morbidity and early-age mortality across the globe is trauma. It disrupts immune system homeostasis and intensely affects the innate and adaptive immune responses, predisposing patients to posttrauma complications and poor outcomes. Most of the studies on posttrauma cellular immune response have been centered on the T helper-1-T helper-2 imbalances after trauma. This study was conducted to understand the role of circulating novel T helper cells in the acute posttraumatic period and clinical outcome of trauma patients. Materials and methods Signature cytokines and transcription factors of circulating Th (T helper)-9, Th-17, Th-22, and regulatory T helper cells were studied using flowcytometry along with serum biomarkers in 49 patients with polytraumatic injuries admitted to a tertiary care hospital. The patients were followed up until their outcome. The results were correlated with their clinical outcomes. Results In patients who died, higher nTreg, iTreg, Tr1 (early-phase), and higher IRF4+Th-9, IL17+ Th-17, and RORγT+ Th-17 (mid-phase) were seen. However, by the late phase, only RORγT+ Th-17 remained higher. Serum IL-6 and PCT were found to be consistently higher. In survivors, higher Th-3 (early phase), Th-22 (mid-phase), and IRF4+Th-9, IL17+ Th-17, nTreg, Th-3 (late phase) were observed to have played a protective role. Serum IL-2, IL-4, IL-17A and IL-22 were significantly higher in survivors. Conclusion Different T helper subsets were observed to be playing pathogenic and protective roles in different phases of trauma and could be used for early prognostication and make way for noninvasive management of critically injured trauma patients by immunomodulation. How to cite this article Khurana S, Bhardwaj N, Kumar S, Sagar S, Pal R, Soni KD, et al. Crosstalk between T Helper Cell Subsets and Their Roles in Immunopathogenesis and Outcome of Polytrauma Patients. Indian J Crit Care Med 2020;24(11):1037–1044.
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- 2020
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35. Insertion sequences and sequence types profile of clinical isolates of carbapenem-resistant A. baumannii collected across India over four year period
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Vijayshri Deotale, Balaji Veeraraghavan, Sumitha Vijayabaskar, Kalaiyasi Kanthan, Sanjay Bhattacharya, Chand Wattal, Dhiviya Prabaa Ms, Thirunarayan, Shalini Anandan, Kamini Walia, Pallab Ray, Sujatha Sistla, Saranya Vijayakumar, Purva Mathur, Arti Kapil, and VC Ohri
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Acinetobacter baumannii ,0301 basic medicine ,Imipenem ,030106 microbiology ,India ,Microbial Sensitivity Tests ,Drug resistance ,Polymerase Chain Reaction ,Meropenem ,beta-Lactamases ,lcsh:Infectious and parasitic diseases ,03 medical and health sciences ,0302 clinical medicine ,Bacterial Proteins ,Drug Resistance, Bacterial ,medicine ,Humans ,lcsh:RC109-216 ,030212 general & internal medicine ,Insertion sequence ,Gene ,Whole genome sequencing ,Genetics ,biology ,lcsh:Public aspects of medicine ,Public Health, Environmental and Occupational Health ,lcsh:RA1-1270 ,General Medicine ,Carbapenem-resistance ,bacterial infections and mycoses ,biology.organism_classification ,Anti-Bacterial Agents ,Infectious Diseases ,Carbapenems ,DNA Transposable Elements ,Multilocus sequence typing ,Acinetobacter Infections ,Multilocus Sequence Typing ,medicine.drug - Abstract
Objectives Acinetobacter baumannii emerged as a major nosocomial pathogen responsible for infections. In this study, we report the molecular characterization, association of insertion sequences and sequence types of clinical isolates of carbapenem resistant A. baumannii. Materials and Methods A total of 763 non-duplicate isolates of A. baumannii received from 8 centres across India during January 2014 to December 2017 were studied. Susceptibility testing was done by Kirby-Bauer method. PCR was performed for detection of extended spectrum β-lactamases, metallo β-lactamases, oxacillinases and ISAba1. Mapping PCR was performed to identify the position of ISAba1 with respect to blaOXA-23 like and blaOXA-51 like gene. MLST was performed to identify the sequence type. Whole genome sequencing was done to decipher the genetic arrangement of ISAba1 with blaOXA-23 like and with blaOXA-51 like. Results All the isolates were resistant to imipenem and meropenem. blaOXA-23 like was the predominant carbapenemase. All isolates were positive for ISAba1. The common sequence types were ST848, ST451 and ST1305 which belongs to International clone II. Whole genome sequencing showed considerable variation in the insertion site location. Conclusions In conclusion, high prevalence of blaOXA-23 like in A. baumannii and its association with ISAba1 and sequence types belonging to IC-II facilitates the successful dissemination of these extremely drug resistant strains.
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- 2020
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36. Hepatic Abscess Caused by Salmonella enterica subsp. enterica, Serovar Typhi: Case Report
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Parul Singh, Aishwarya Govindaswamy, Pramod Kumar Garg, and Purva Mathur
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Serotype ,biology ,business.industry ,Hepatic abscess ,Salmonella infection ,bacterial infections and mycoses ,biology.organism_classification ,medicine.disease ,Microbiology ,Levofloxacin ,Salmonella enterica ,medicine ,bacteria ,Salmonella enterica subsp. enterica ,Complication ,business ,medicine.drug ,Liver abscess - Abstract
Hepatic abscess is a rare complication of Salmonella infection associated with high mortality. Here, we report a case of liver abscess caused by Salmonella enterica subsp. enterica, serovar Typhi. On the basis of culture sensitivity report, the patient was treated with intravenous levofloxacin, following which the patient responded clinically.
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- 2020
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37. Molecular signature of postmortem lung tissue from COVID-19 patients suggests distinct trajectories driving mortality
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Randeep Guleria, Ishaan Gupta, Suman B. Pakala, Madhuresh Sumit, Animesh Ray, S Arulselvi, Aruna Nambirajan, Purva Mathur, Seesandra V. Rajagopala, Anjan Trikha, Anshul Budhraja, Anubhav Basu, Naveet Wig, Sachin Kumar, Atish Gheware, Ritu Gupta, Dasari Abhilash, Deepali Jain, and Chitra Sarkar
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Secondary infection ,Neuroscience (miscellaneous) ,Medicine (miscellaneous) ,Inflammation ,Steroid biosynthesis ,General Biochemistry, Genetics and Molecular Biology ,Immunology and Microbiology (miscellaneous) ,medicine ,Humans ,Microbiome ,Lung ,business.industry ,SARS-CoV-2 ,COVID-19 ,respiratory system ,medicine.disease ,Complement system ,Cytokine release syndrome ,medicine.anatomical_structure ,Immunology ,Cytokines ,Autopsy ,medicine.symptom ,business ,Dysbiosis - Abstract
The precise molecular mechanisms behind life-threatening lung abnormalities during severe SARS-CoV-2 infections are still unclear. To address this challenge, we performed whole transcriptome sequencing of lung autopsies from 31 patients suffering from severe COVID-19 related complications and 10 uninfected controls. Using a metatranscriptome analysis of lung tissue samples we identified the existence of two distinct molecular signatures of lethal COVID-19. The dominant “classical” signature (n=23) showed upregulation of unfolded protein response, steroid biosynthesis and complement activation supported by massive metabolic reprogramming leading to characteristic lung damage. The rarer signature (n=8) potentially representing “Cytokine Release Syndrome” (CRS) showed upregulation of cytokines such IL1 and CCL19 but absence of complement activation and muted inflammation. Further, dissecting expression of individual genes within enriched pathways for patient signature suggests heterogeneity in host response to the primary infection. We found that the majority of patients cleared the SARS-CoV-2 infection, but all suffered from acute dysbiosis with characteristic enrichment of opportunistic pathogens such as Staphylococcus cohnii in “classical” patients and Pasteurella multocida in CRS patients. Our results suggest two distinct models of lung pathology in severe COVID-19 patients that can be identified through the status of the complement activation, presence of specific cytokines and characteristic microbiome. This information can be used to design personalized therapy to treat COVID-19 related complications corresponding to patient signature such as using the identified drug molecules or mitigating specific secondary infections.
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- 2022
38. Genomic Characterization of Mobile Genetic Elements Associated With Carbapenem Resistance of
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Saranya, Vijayakumar, Jobin John, Jacob, Karthick, Vasudevan, Purva, Mathur, Pallab, Ray, Ayyanraj, Neeravi, Ashtawarthani, Baskaran, Agilandeeswari, Kirubananthan, Shalini, Anandan, Indranil, Biswas, Kamini, Walia, and Balaji, Veeraraghavan
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With the excessive genome plasticity
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- 2022
39. Genomic rearrangements of mobile genetic elements associated with carbapenem resistance of Acinetobacter baumannii
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Saranya Vijayakumar, Jobin Jacob John, Karthick Vasudevan, Purva Mathur, Pallab Ray, Ayyanraj Neeravi, Asthawarthani Baskaran, Agilandeeswari Kirubananthan, Shalini Anandan, Indranil Biswas, Kamini Walia, and Balaji Veeraraghavan
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biochemical phenomena, metabolism, and nutrition - Abstract
With the excessive genome plasticity, Acinetobacter baumannii has the capability to acquire and disseminate antimicrobial resistance genes that are often associated with mobile genetic elements (MGE). Analyzing the genetic environment of resistance genes often provides valuable information on the origin, emergence, evolution and spread of resistance. Thus, we characterized the genomic features of some clinical isolates of carbapenem-resistant A. baumannii to understand the role of diverse MGE and their genetic context that are responsible for the dissemination of carbapenem resistance genes. For this, a total of 17 clinical isolates of A. baumannii obtained from multiple hospitals in India between the years 2018 and 2019 were analysed. Antimicrobial resistance determinants, genetic context of resistance genes and molecular epidemiology were studied using whole genome sequencing. A high prevalence of blaOXA-23 was observed followed by the presence of dual carbapenemase, blaOXA-23 and blaNDM. Three novel Oxford sequence types were identified. Majority of the isolates belonged to dominant clone, IC2 followed by less prevalent clones such as IC7 and IC8. Complex diverse AbaR4 like and AbGRI-like islands belonging to IC2 lineage were identified. To the best of our knowledge, this is the first study that provides a comprehensive profiling of resistance islands along with the MGE, acquired antimicrobial resistance genes and the distribution of clonal lineages of carbapenem resistant A. baumannii from India.
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- 2022
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40. Seroprevalence of SARS-CoV-2 antibodies among first-trimester pregnant women during the second wave of the pandemic in India
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Kandala Aparna Sharma, Nilanchali Singh, Sara Hillman, Purva Mathur, Kapil Yadav, Anapti Garg, Vatsla Dadhwal, and Neerja Bhatla
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Obstetrics and Gynecology ,General Medicine - Abstract
Data on the immune response to SARS-CoV-2 during pregnancy are lacking and the potential role and effect of SARS-CoV-2 vaccination in pregnancy is yet to be completely investigated.This is a cross-sectional observational study wherein pregnant women were tested for SARS-CoV-2 immunoglobulin M and immunoglobulin G levels, irrespective of their infective status or presence or symptomatology.Of the 220 pregnant women tested, 160 (72.7%) were SARS-CoV-2 IgG positive, 37 (16.8%) were SARS-CoV-2 IgM positive and 27 (16.9%) were both IgG and IgM positive. The average antibody titer found was 10.49 BAU/ml (±14.0) and 0.6 (±0.55) for anti-SARS-CoV-2 IgG and IgM non neutralizing antibodies respectively. ROC analysis for SARS-CoV-2 IgG positivity showed a cut-off value of 1.19 with a sensitivity of 99.3% (0.99 AUC, 95% CI) and specificity of 98.3% (0.99 AUC, 95% CI), respectively. Similarly, ROC analysis for SARS-CoV-2 IgM positivity showed a cut-off value of 1 with a sensitivity of 97.3% (0.99 AUC, 95% CI) and specificity of 98.9% (0.99 AUC, 95% CI), respectively.First trimester sero-molecular screening suggests a high prevalence of COVID antibodies in the study population of pregnant women in the first trimester, without the patients being symptomatic.
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- 2022
41. Clinical Presentation and Course of SARS-CoV-2 Infection in Health-Care Personnel Working in Dedicated COVID-19 Hospital During 2 Pandemic Waves in India
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Ashish, Bindra, Neha, Sharma, Sheeba, Joseph, Purva, Mathur, Rajesh, Malhotra, and Maroof A, Khan
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Public Health, Environmental and Occupational Health - Abstract
Introduction: Health-care personnel (HCPs) are predisposed to infection during direct or indirect patient care as well as due to the community spread of the disease. Methods: We observed the clinical presentation and course of severe acute respiratory syndrome coronavirus disease 2 (SARS-CoV-2) infection in HCPs working in a dedicated coronavirus disease 2019 (COVID-19) care hospital during the first and the second wave. Results: A total of 100 and 223 HCPs were enrolled for the first wave and the second wave, respectively. Cough, shortness of breath, sore throat, runny nose, and headache was seen in 40 (40%) and 152 (68%) (P < 0.01), 15 (15%) and 64 (29%) (P = 0.006), 40 (40%) and 119 (53.3%) (P = 0.03), 9 (9%) and 66 (30%) (P < 0.01), 20 (20%) and 125 (56%) (P < 0.01), respectively. Persistent symptoms at the time of joining back to work were seen in 31 (31%) HCPs and 152 (68%) HCPs, respectively (P ≤ 0.01). Reinfection was reported in 10 HCPs. Conclusions: Most of the HCPs had mild to moderate infections. Symptoms persist after joining back to work. Upgradation of home-based care and teleconsultation facilities for active disease and redressal of residual symptoms will be helpful.
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- 2021
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42. Incidence of COVID-19-associated mucormycosis in COVID-19 patients after discharge from the COVID-19 hospital
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Richa Aggarwal, Aayush Kulshrestha, Parul Kodan, Yudhyavir Singh, Rakesh Kumar, KapilD Soni, and Purva Mathur
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Public Health, Environmental and Occupational Health - Published
- 2023
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43. Invasive pulmonary aspergillosis infection in severely ill COPD patients in pulmonary ward and ICU
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Jaweed Ahmed, Gagandeep Singh, Anant Mohan, Reshu Agarwal, Janya Sachdev, Swati Khullar, Ashit Bhusan Xess, Purva Mathur, B.K. Das, and Immaculata Xess
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Microbiology (medical) ,Invasive Pulmonary Aspergillosis ,Intensive Care Units ,Pulmonary Disease, Chronic Obstructive ,Critical Illness ,Aspergillosis ,Humans - Abstract
This study was planned to determine the trends and susceptibility pattern of invasive pulmonary aspergillosis (IPA) in severely ill chronic obstructive pulmonary disease (COPD) patients admitted in pulmonary ward and ICU of our tertiary care centre.Fifty COPD patients suspected of IPA from pulmonary ward and ICU from April 2017 to September 2018 were investigated. Samples were processed by standard methods, culture positive isolates were confirmed by MALDI-TOF MS and antifungal susceptibility testing was performed by microbroth dilution method.Twenty-two critically ill COPD patients were microbiologically positive for IA infection, of which 13 were classified as putative invasive aspergillosis. The most common comorbid illness associated was diabetes. A. flavus and A. fumigatus were the commonest species isolated. The minimum inhibitory concentration of the antifungals was low. Morbidity due to IPA in COPD patients was very high.Prevalence of IPA in the pulmonary ward and ICU was found to be 9.6%. MALDI-TOF seems to be a promising tool for aiding rapid identification especially for slow growing and non-sporulating fungi. Heightened awareness and suspicion for pulmonary mould infections along with early diagnosis can substantially alter the patient prognosis.
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- 2021
44. Multidrug-Resistant Candida auris Fungemia in Critical Care Units: Experience from a Tertiary Care Hospital in India
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Sushma Sagar, Purva Mathur, Subodh Kumar, Aishwarya Govindaswamy, Rajesh Malhotra, Vijeta Bajpai, Immaculata Xess, and Pramod Kumar Garg
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Microbiology (medical) ,Pharmacology ,0303 health sciences ,medicine.medical_specialty ,030306 microbiology ,business.industry ,Immunology ,High mortality ,Outbreak ,Tertiary care hospital ,medicine.disease ,Microbiology ,Intensive care unit ,law.invention ,Multiple drug resistance ,03 medical and health sciences ,Candida auris ,law ,Internal medicine ,Health care ,medicine ,business ,Fungemia ,030304 developmental biology - Abstract
Candida auris, a recently identified multiresistant Candida species, was first reported in Japan in 2009. It is different from other pathogenic yeast species because of its propensity to cause outbreaks and transmits between patients within health care settings. The invasive infections caused by C. auris are associated with high mortality rates, approaching 70% particularly in intensive care unit patients. Conventional biochemical methods are inaccurate in identifying this species of Candida. Although C. auris is frequently reported as multi-, extended-, or pan drug resistant to antifungal drugs, there is a wide variability in the susceptibility among reports worldwide. In this study we report a case series of five hospitalized patients with multidrug-resistant candidemia caused by C. auris in a tertiary hospital in India. Our finding suggests that correct identification followed by therapeutic intervention is necessary for favorable outcome in patients with C. auris fungemia.
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- 2020
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45. The Importance of Intra- and Inter-Institutional Networks for Capacity Building in Severe Acute Respiratory Syndrome Coronavirus 2 Reverse Transcription Polymerase Chain Reaction Services: Experience from an Oncology Centre in Eastern India
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Deepak Mishra, Kamini Walia, Shekhar Krishnan, Gaurav Goel, Mammen Chandy, Purva Mathur, Sanjay Bhattacharya, and Neeraj Arora
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0301 basic medicine ,Microbiology (medical) ,Pneumonia, Viral ,030106 microbiology ,Immunology ,lcsh:QR1-502 ,India ,Context (language use) ,Disease ,human resource ,medicine.disease_cause ,Community Networks ,Microbiology ,lcsh:Microbiology ,reverse transcription polymerase chain reaction ,Betacoronavirus ,03 medical and health sciences ,COVID-19 Testing ,0302 clinical medicine ,Immunology and Microbiology (miscellaneous) ,Pandemic ,medicine ,Humans ,Immunology and Allergy ,Infection control ,Operations management ,030212 general & internal medicine ,Human resources ,Pandemics ,Coronavirus ,General Immunology and Microbiology ,Clinical Laboratory Techniques ,Reverse Transcriptase Polymerase Chain Reaction ,SARS-CoV-2 ,business.industry ,capacity building ,COVID-19 ,Capacity building ,Diagnostic Services ,Reverse transcription polymerase chain reaction ,Infectious Diseases ,coronavirus disease ,networks ,Special Article: Covid Series ,Business ,Coronavirus Infections ,equipment ,severe acute respiratory syndrome coronavirus 2 - Abstract
High-throughput, accurate, cost-effective and rapid testing for severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) is the need of the hour in face of the global coronavirus disease pandemic. This target is achievable, within a relatively short time through capacity building of reverse transcription polymerase chain reaction (RT-PCR) tests by utilising the strengths of intra and inter institutional networks. These networks act as force multiplier for vital resources which are required for capacity building, namely, leadership, expertise, equipment, space, infection control inputs and human resources. In this article, we report the experience of capacity building for delivery of RT-PCR tests for SARS CoV-2 from a cancer hospital in Eastern India. The relevance, mode of operation and value addition of this essential public health service are discussed in the context of inter departmental collaboration and interaction with other institutes through the existing diagnostic, surveillance and infection control networks. This networking model for service development and delivery could be used by other centres.
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- 2020
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46. Multiple importations and transmission of colistin-resistantKlebsiella pneumoniaein a hospital in northern India
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Richa Aggarwal, Padmini Srikantiah, Anoop Velayudhan, Sushma Sagar, Purva Mathur, Manigandan Venkatesan, Rajesh Malhotra, Subodh Kumar, Balaji Veeraraghavan, Surbhi Khurana, Valan Siromany, Neil Gupta, Omika Katoch, Aditya Sharma, Neha Rastogi, Kapil Dev Soni, Tom J. B. de Man, Amit Gupta, Ayyan Raj Neeravi, Kayla F. Laserson, Joseph D. Lutgring, and Paul Malpiedi
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0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,biology ,Epidemiology ,Klebsiella pneumoniae ,business.industry ,medicine.drug_class ,030106 microbiology ,Antibiotics ,Broth microdilution ,Drug resistance ,Tigecycline ,biology.organism_classification ,Microbiology ,Multiple drug resistance ,03 medical and health sciences ,030104 developmental biology ,Infectious Diseases ,medicine ,Colistin ,business ,medicine.drug - Abstract
Objective:Resistance to colistin, a last resort antibiotic, has emerged in India. We investigated colistin-resistantKlebsiella pneumoniae(ColR-KP) in a hospital in India to describe infections, characterize resistance of isolates, compare concordance of detection methods, and identify transmission events.Design:Retrospective observational study.Methods:Case-patients were defined as individuals from whom ColR-KP was isolated from a clinical specimen between January 2016 and October 2017. Isolates resistant to colistin by Vitek 2 were confirmed by broth microdilution (BMD). Isolates underwent colistin susceptibility testing by disk diffusion and whole-genome sequencing. Medical records were reviewed.Results:Of 846K. pneumoniaeisolates, 34 (4%) were colistin resistant. In total, 22 case-patients were identified. Most (90%) were male; their median age was 33 years. Half were transferred from another hospital; 45% died. Case-patients were admitted for a median of 14 days before detection of ColR-KP. Also, 7 case-patients (32%) received colistin before detection of ColR-KP. All isolates were resistant to carbapenems and susceptible to tigecycline. Isolates resistant to colistin by Vitek 2 were also resistant by BMD; 2 ColR-KP isolates were resistant by disk diffusion. Moreover, 8 multilocus sequence types were identified. Isolates were negative for mobile colistin resistance (mcr) genes. Based on sequencing analysis, in-hospital transmission may have occurred with 8 case-patients (38%).Conclusions:Multiple infections caused by highly resistant,mcr-negative ColR-KP with substantial mortality were identified. Disk diffusion correlated poorly with Vitek 2 and BMD for detection of ColR-KP. Sequencing indicated multiple importation and in-hospital transmission events. Enhanced detection for ColR-KP may be warranted in India.
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- 2019
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47. Impact of monocytic cytokines in polytrauma patients with orthopedics injures
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Surbhi Khurana, Purva Mathur, Richa Aggarwal, Neelu Sharma, Nidhi Bhardwaj, and Vijay Sharma
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030222 orthopedics ,Femur fracture ,medicine.medical_specialty ,business.industry ,Femoral fracture ,medicine.disease ,Polytrauma ,Proinflammatory cytokine ,Systemic inflammatory response syndrome ,Sepsis ,03 medical and health sciences ,0302 clinical medicine ,Basic Science ,Internal medicine ,medicine ,Injury Severity Score ,Orthopedics and Sports Medicine ,Femur ,030212 general & internal medicine ,business - Abstract
Objective Orthopedic injuries are a growing epidemic affecting predominantly, the young population, after trauma. Polytrauma patients with a femoral fracture and with Injury Severity Score of >15 are of special concern because of complications like Systemic inflammatory response syndrome (SIRS), Multi-organ dysfunction syndrome (MODS) and sepsis. Against this background. We aimed to assess the role of monocytic cytokines in the development of complications in patients, having isolated diapheseal fracture of femur as compared to those having diapheseal fracture of femur along with ISS score >15. Methodology Patients were divided into to two groups: in first group, only those patients who had isolated femur fracture were included (named as ‘Group A’). In the second groups patients having femur fracture along with ISS >15 at the time of admission (named as ‘Group B’), were included. The study used flowcytometry based intracellular cytokine assay to circumvent the problem associated with extracellular cytokine assay. Results and Conclusion A total of 20 patients aged between 20 and 55 years, presenting to the emergency department within 24 h of injury were enrolled in Group ‘A’ and ‘B’ as per criteria mentioned above. Intracellular expression of cytokines in isolated femur fracture tends to normalize towards healthy control in the late phase of trauma. Elevated levels of IL-8 and IL-6 levels in late phase (Day 10) of trauma. IL-8 and IL-6 may increases to compensate the higher levels of IL-1β. The effect of cytokines on the severity of injury was observed. This complex action of immune cells and proinflammatory cytokines were seen in initial and later stage of trauma.
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- 2019
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48. Prevalence and characterization of beta-lactamase-producing Escherichia coli isolates from a tertiary care hospital in India
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Vijeta Bajpai, Purva Mathur, Rajesh Malhotra, Priyam Batra, Surbhi Khurana, Anjana Aravinda, and Aishwarya Govindaswamy
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Cefotaxime ,carbapenemases ,medicine.medical_treatment ,lcsh:R ,lcsh:Medicine ,Ceftazidime ,Biology ,Cefpodoxime ,Tazobactam ,Microbiology ,extended spectrum beta-lactamases ,Clavulanic acid ,Ticarcillin ,Escherichia coli ,medicine ,Beta-lactamase ,Original Article ,Amp-C-β lactamase ,medicine.drug ,Piperacillin - Abstract
BACKGROUND: The purpose of the study was to determine the prevalence and characterize the resistance profiles of Escherichia coli isolated from various clinical specimens by various phenotypic and genotypic methods. MATERIALS AND METHODS: A total of 196 consecutive, nonduplicate strains of clinically significant E. coli isolated from various clinical specimens were included in the study. Identification and antimicrobial susceptibility testing was performed by using Vitek-2 system (Biomerieux, France). Phenotypic detection of extended spectrum beta-lactamase (ESBLs), Amp-C-β lactamase (Amp C), and carbapenemase production was done by various combination of disc diffusion methods, minimum inhibitory concentration determination by E-test, followed by polymerase-chain-reaction for the detection of β-lactamase-encoding genes. RESULTS: Overall prevalence of ESBLs, Amp C, and carbapenemase production was found to be 88.3%, 42.2%, and 65.1% by the phenotypic detection methods. Our study also revealed high resistance rates against other antibiotics such as cefepime (89%), cefotaxime (95.4%), ceftazidime (85.4%), ceftriaxone (91.8%), cefpodoxime (92.7%), aztreonam (56.3%), piperacillin/tazobactam (89.2%), and ticarcillin/clavulanic acid (76.3%). The most prevalent ESBL gene was blaTEM(67.30%), and least prevalent ESBL gene was blaVEB(2.61%). In case of Amp C, blaFOXgene (21.9%) was predominant. Among the genes encoding for carbapenemases, the most common gene was blaNDM(61.7%) followed by blaVIM(30.8%), blaKPC(10.6%), blaOXA-48 (5.3%), and blaIMP(2.1%). CONCLUSION: Our findings suggest a high rate of ESBLs, Amp C, and carbapenemase production among the E. coli isolates. A combination of both phenotypic and genotypic methods would be ideal for better characterization of resistance patterns among the E. coli isolates.
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- 2019
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49. ACE2 Expression in Lungs of Severe COVID-19 Infection: A Study on Minimally Invasive Post- mortem Tissue Samples
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Deepali Jain, Aruna Nambirajan, Geetika Singh, Animesh Ray, Prashant Bajpai, Asit Ranjan Mridha, Naveet Wig, S Arulselvi, Neeraj Nischal, Prasenjit Das, Sudheer Arava, Sanjeev Lalwani, Purva Mathur, Deeksha Rana, Manish Soneja, Chitra Sarkar, Atish Gheware, and Anjan Trikha
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Pathology ,medicine.medical_specialty ,Coronavirus disease 2019 (COVID-19) ,business.industry ,Medicine ,respiratory system ,business ,Post mortem brain - Abstract
Angiotensin-converting enzyme 2 (ACE2) is a key host protein by which severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) enters and multiplies within cells. The level of ACE2 expression in the lung is hypothesised to correlate with an increased risk of severe infection and complications in COVID-19 (COrona VIrus Disease 2019). To test this hypothesis, we compared the protein expression status of ACE2 by immunohistochemistry (IHC) in post-mortem lung samples of patients who died of severe COVID-19 and lung samples obtained from non-COVID-9 patients for other indications. IHC for CD61 and CD163 were performed for assessment of platelet-rich microthrombi and macrophages, respectively. IHC for SARS-CoV-2 viral antigen was also performed. Quantification of immunostaining, random sampling, and correlation analysis was used to substantiate the morphologic findings. Our results show that among a total of 44 COVID-19 post-mortem lung tissues and 15 lung biopsies in non-COVID-19 patients included, ACE2 protein expression was significantly higher in COVID-19 patients than in controls, regardless of sample size. Histomorphology in COVID-19 lungs showed diffuse alveolar damage (DAD), acute bronchopneumonia, and acute lung injury with SARS-CoV-2 viral protein detected in a subset of cases. ACE2 expression levels positively correlated with increased expression levels of CD61 and CD163. In conclusion, our results show significantly higher ACE2 protein expression in severe COVID-19 disease, correlating with increased macrophage infiltration and microthrombi, suggesting a pathobiological role in disease severity.
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- 2021
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50. ACE2 protein expression in lung tissues of severe COVID-19 infection
- Author
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Atish Gheware, Animesh Ray, Deeksha Rana, Prashant Bajpai, Aruna Nambirajan, S. Arulselvi, Purva Mathur, Anjan Trikha, Sudheer Arava, Prasenjit Das, Asit Ranjan Mridha, Geetika Singh, Manish Soneja, Neeraj Nischal, Sanjeev Lalwani, Naveet Wig, Chitra Sarkar, and Deepali Jain
- Subjects
Adult ,Aged, 80 and over ,Male ,Multidisciplinary ,Adolescent ,SARS-CoV-2 ,Acute Lung Injury ,Integrin beta3 ,Antigens, Differentiation, Myelomonocytic ,COVID-19 ,Receptors, Cell Surface ,respiratory system ,Middle Aged ,Immunohistochemistry ,Severity of Illness Index ,Young Adult ,Antigens, CD ,Case-Control Studies ,Humans ,Female ,Angiotensin-Converting Enzyme 2 ,Autopsy ,Lung ,Aged - Abstract
Angiotensin-converting enzyme 2 (ACE2) is a key host protein by which severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) enters and multiplies within cells. The level of ACE2 expression in the lung is hypothesised to correlate with an increased risk of severe infection and complications in COrona VIrus Disease 2019 (COVID-19). To test this hypothesis, we compared the protein expression status of ACE2 by immunohistochemistry (IHC) in post-mortem lung samples of patients who died of severe COVID-19 and lung samples obtained from non-COVID-19 patients for other indications. IHC for CD61 and CD163 was performed for the assessment of platelet-rich microthrombi and macrophages, respectively. IHC for SARS-CoV-2 viral antigen was also performed. In a total of 55, 44 COVID-19 post-mortem lung samples were tested for ACE2, 36 for CD163, and 26 for CD61, compared to 15 non-covid 19 control lung sections. Quantification of immunostaining, random sampling, and correlation analysis were used to substantiate the morphologic findings. Our results show that ACE2 protein expression was significantly higher in COVID-19 post-mortem lung tissues than in controls, regardless of sample size. Histomorphology in COVID-19 lungs showed diffuse alveolar damage (DAD), acute bronchopneumonia, and acute lung injury with SARS-CoV-2 viral protein detected in a subset of cases. ACE2 expression levels were positively correlated with increased expression levels of CD61 and CD163. In conclusion, our results show significantly higher ACE2 protein expression in severe COVID-19 disease, correlating with increased macrophage infiltration and microthrombi, suggesting a pathobiological role in disease severity.
- Published
- 2021
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