74 results on '"Kalra SK"'
Search Results
2. Pediatric cerebellopontine angle medulloblastomas
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Kumar, Raj, primary, Bhowmick, U, additional, Kalra, SK, additional, and Mahapatra, AK, additional
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- 2008
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3. Adverse perinatal outcome and in vitro fertilization singleton pregnancies: what lies beneath? Further evidence to support an underlying role of the modifiable hormonal milieu in in vitro fertilization stimulation.
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Kalra SK
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- 2012
4. Quantitative tissue analysis reveals AK2, COL1A1, and PLG protein signatures: targeted therapeutics for meningioma.
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Sharma S, Shamjetsabam ND, Chauhan K, Yashavarddhan MH, Gautam P, Prakash P, Choudhary P, Chhabra SS, Acharya R, Kalra SK, Gupta A, Jain S, Ganguly NK, and Rana R
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- Humans, Collagen Type I metabolism, Collagen Type I analysis, Female, Male, Middle Aged, Proteomics, Immunohistochemistry, Adult, Tandem Mass Spectrometry, Blotting, Western, Flow Cytometry, Meningioma metabolism, Meningioma pathology, Meningioma therapy, Meningeal Neoplasms metabolism, Meningeal Neoplasms pathology, Meningeal Neoplasms therapy, Biomarkers, Tumor metabolism, Biomarkers, Tumor analysis, Collagen Type I, alpha 1 Chain
- Abstract
Background: Meningioma is the most prevalent primary intracranial brain tumor and accounts for one-third of all CNS tumors. Meningioma is known to be the most common yet life-threatening brain tumor with a higher recurrence rate. Globally, there is an increase in the healthcare burden due to meningioma and hence in its research. The present clinical approach includes surgical resection, chemotherapy, and radiation therapies to which the malignancy does not seem to respond efficiently. Targeted therapies and molecular markers provide elite patient treatment and care for individuals suffering from meningiomas as compared to conventional measures. Although there is proteomic data on meningioma the knowledge of potential biomarkers differentiating the grades is scarce. To identify the best set of biomarkers, validation of reported markers in large and independent sample cohorts in the future is necessary., Methods: A total of 12 samples, 3 each of control (which made pool 1) meningioma grade I (which made 2 sets: pool 2 and pool 3), and meningioma grade II (which made pool 4) were taken for LC-MS/MS. After this, the expression of three proteins was checked by immunocytochemistry, flow cytometry, and western blotting., Results: Protein expression was analyzed using various techniques like mass spectrometry, immunocytochemistry, flow cytometry, and western blotting. Mass spectrometry is the most commonly used standard and reliable technique for identifying and quantifying protein expression. We got three highly upregulated proteins namely AK2, COL1A1, and PLG using this technique. The biomarker potential of these proteins was further checked by ICC, western blotting, and flow cytometry. Three important proteins were found to be upregulated namely, AK2 (Adenylate kinase 2), COL1A1 (collagen 1A1), and PLG (plasminogen). The order of increased protein expression was control < MG grade I < MG grade II according to mass spectrometry and western blotting. In immunocytochemistry, we found that COL1A1 expression increases significantly with grades in comparison to control. Similarly, AK2 and PLG also showed little increase but not as much as COL1A1. In flow cytometry, PLG showed higher upregulation in grades than control. While AK2 and COL1A1 showed little increase in expression in grades than control. All techniques, especially mass spectrometry and western blotting, presented higher expression of these proteins in grades as compared to control., Conclusions: In the quest to find a suitable therapeutic marker, this study incorporates quantitative labeling and detection followed by flow cytometry, immunocytochemistry, and western blotting for early diagnosis and treatment of meningioma. The article further explores the efficacy of some proteins namely AK2, COL1A1, and PLG to be the targeted molecules., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.)
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- 2024
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5. Perioperative Management of Adult Patients with Diabetes Wearing Devices: A Society for Perioperative Assessment and Quality Improvement (SPAQI) Expert Consensus Statement.
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Oprea AD, Kalra SK, Duggan EW, Russell LL, Urman RD, Abdelmalak BB, Patel P, Pfeifer KJ, Grant PJ, Charitou MM, Mendez CE, Sherr JL, Umpierrez GE, and Klonoff DC
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- Humans, Adult, Blood Glucose Self-Monitoring instrumentation, Blood Glucose Self-Monitoring standards, Blood Glucose analysis, Hypoglycemic Agents administration & dosage, Hypoglycemic Agents therapeutic use, Insulin administration & dosage, Perioperative Care standards, Perioperative Care methods, Insulin Infusion Systems standards, Quality Improvement, Diabetes Mellitus therapy, Consensus
- Abstract
In recent years, the integration of advanced diabetes technology into the care of individuals with diabetes has grown exponentially. Given their increasing prevalence, insulin-requiring people with diabetes may present to preoperative clinics or the operating rooms wearing such devices. While advantageous from a diabetes management perspective, for those unfamiliar with devices this can add another layer of complexity to diabetes management in both the outpatient and inpatient settings, particularly because of the rapidly evolving technology. Therefore, perioperative clinicians need to become familiar with diabetes technological advances, and device features and have an understanding of how they can be used in the perioperative period. This consensus statement aims to serve as an educational material as well as to serve as a guide to perioperative clinicians caring for patients wearing diabetes devices (insulin pumps and continuous glucose monitors)., Competing Interests: Declaration of competing interest DCK is a consultant for Afon, Atropos Health, Better Therapeutics, Glucotrack, Lifecare, Nervo, Novo, and Thirdwayv. MC received honoraria for participating on speaker's bureaux for Dexcom and Insulet and is a consultant for Insulet. JLS serves or has served on advisory panels for Bigfoot Biomedical, Cecelia Health, Insulet, Medtronic, Startup Health Diabetes Moonshot, and Vertex. JLS has served as a consultant for Abbott, Bigfoot Medical, Insulet, Medtronic, and Zealand. Yale School of Medicine has received research support for JLS from Abbott, JAEB Center for Health Research, JDRF, Insulet, Medtronic, NIH, and Provention Bio. GEU has received grant supoort from Novo Nordisk, Merck, Insulcloud, Dexcom, Abbott, AstraZeneca, and Bayer. RDU received funding from Merck and AcelRx. All other authors declare no competing interests., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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6. Anemia and Transfusion Medicine.
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Kalra SK and Auron M
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- Humans, Iron therapeutic use, Iron administration & dosage, Transfusion Medicine methods, Erythrocyte Transfusion, Perioperative Care methods, Hematinics therapeutic use, Postoperative Complications prevention & control, Postoperative Complications etiology, Postoperative Complications therapy, Anemia therapy, Anemia etiology, Blood Transfusion methods
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Peri-operative anemia is a common condition encountered in adult surgical patients. It is increasingly recognized as a predictor of post-operative morbidity and mortality. Evaluation and treatment of anemia pre-operatively can reduce transfusion needs and potentially improve outcomes in surgical patients. This article discusses anemia optimization strategies in peri-operative setting with special focus on use of intravenous iron therapy. Additionally, the authors describe the role of transfusion medicine and best practices around red blood cell, platelet, and plasma transfusions., Competing Interests: Disclosure None., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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7. Awareness of peripheral IV catheters among nurses, physicians, and trainees: A prospective cohort study.
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Adžemović T, Govindan S, Zheutlin A, Horowitz J, Heath M, Kuhn L, Nabeel M, Kalra SK, Dhillon D, Kaatz S, Swaminathan L, Harba N, and Chopra V
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- Humans, Prospective Studies, Female, Male, Middle Aged, Michigan, Adult, Health Knowledge, Attitudes, Practice, Aged, Catheter-Related Infections prevention & control, Catheterization, Peripheral adverse effects, Physicians psychology, Nurses
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Background: Peripheral intravenous catheters (PIVs) are the most frequently used invasive device in hospitalized patients. These devices are not benign and are associated with complications. However, clinician awareness of them is variable and poorly understood., Methods: We conducted a prospective, multicenter, observational point prevalence study to assess awareness of PIV presence among clinicians caring for hospitalized patients in 4 hospitals between May 2018 and February 2019 located in Michigan, USA. We first assessed patients for the presence of a PIV then interviewed their providers. Differences in awareness by provider type were assessed via χ² tests; P < .05 was considered statistically significant. Analyses were performed on Stata MP v16., Results: A total of 1,385 patients and 4,003 providers were interviewed. Nurses had the greatest awareness of overall PIV presence, 98.6%, while attendings were correct 88.1% of the time. Nurses were more likely to correctly assess PIV presence and exact location than physicians (67.7% vs <30% for all others). Awareness of PIV presence did not significantly vary in patients on contact precautions or those receiving infusions., Conclusions: Given the ubiquity of PIVs and known complications, methods to increase awareness to ensure appropriate care and removal are necessary., (Copyright © 2024 Association for Professionals in Infection Control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved.)
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- 2024
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8. Modification of Rapid Papanicolaou Stain with Phloxine: A Study Assessing the Utility in Gynecological Smears.
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Kaur R, Somal PK, Kalra SK, Sharma A, and Sancheti S
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Background: Rapidity and reliability are the major advantages of cytopathology in tumor diagnosis. The need for minimal turnaround time for assessing cytological smears has encouraged innovations in staining techniques that require lesser staining time with unequivocal cell morphology. Rapid Pap staining was introduced as a hybrid to conventional Pap stain. It improves staining quality, gets over the staining time in restriction, and is a more efficient technique financially. In the present study, a modified staining technique was adopted where phloxine is added as one of the cytoplasmic stain components in rapid Pap stain kits., Objective: The aim of this study was to assess whether the modification of the existing procedure by adding phloxine as one of the components of the cytoplasmic stain intensifies the cytoplasmic differentiation and cytoplasmic staining in gynecological smears., Materials and Methods: This was a prospective study done on 50 cases of gynecological smears. Two smears were collected from each patient and fixed in 100% propanol and stained with the rapid Pap stain kit procedure and modified rapid Pap stain with phloxine. Slides were then analyzed by two pathologists blinded to the staining method used. Five parameters were considered and scored (background, cell morphology, nuclear staining, cytoplasmic differentiation, and cytoplasmic staining). The quality index for each method was calculated by finding out the ratio of the actual score obtained to the maximum score possible., Results: Both the staining methods had comparable results. For both pathologists, the quality index calculated for modified Pap stain was found to be marginally higher than the quality index for rapid Pap. The mean quality index was comparable for modified Pap (0.91) and rapid Pap (0.89)., Conclusions: The efficacy of modified Pap stain with phloxine to distinctly stain the cytoplasm is comparable with that of rapid Pap stain. In addition, the intensity of staining can be enhanced with little cost outlay, and this can be especially beneficial in low-resource settings., Competing Interests: There are no conflicts of interest., (Copyright: © 2024 Journal of Cytology.)
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- 2024
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9. Menstrual hygiene management and menstrual problems among adolescent girls in an urban area in north India: A cross-sectional study.
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Ahmed S, Nimonkar R, Kalra SK, Singh PMP, Rajiva, and Singh S
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Introduction: Most adolescent women face many restrictions, which become much more severe during menstruation. In India, millions of adolescent girls drop out of school every year due to menstruation-related problems and restrictions. Despite extensive research, a paucity of literature was observed on the level of knowledge, attitude, and practices of adolescent girls regarding menstruation. Hence, we proceeded to undertake the present study, to have a deeper understanding of the menstrual hygiene management of adolescents., Aims: To describe the menstrual hygiene management among adolescent school girls., Objectives: (a) To examine the association, if any, between menstrual hygiene management and school absenteeism during menstruation in adolescent school girls., Materials and Methods: We conducted a school-based cross-sectional analytical study in an urban area in north India. The study population comprised adolescent school girls of all the high schools in the urban area. With a 95% confidence interval, and 5% margin of error, the sample size was calculated to be 369. However, an even larger sample size of 600 was actually studied. The probability proportional to size sampling approach was followed based on the number of adolescent girls in each school class/section. Participants were selected through a stratified proportionate sampling method. Ethical approval was obtained from the ethical committee of the district director of education of the urban area where the study was conducted before the commencement of the study. Confidentiality of the information collected was ensured. The data collected was quantitative in nature, using a pretested self-administered questionnaire consisting of both open-ended and close-ended questions. Data was checked for its completeness, coded, and entered into Microsoft Excel 2021 Spreadsheet. Subsequently, the data was imported into IBM Statistical Package for the Social Sciences (SPSS) Statistics for Windows, Version 23.0. Armonk, NY: IBM Corp. for data analysis. Standard statistical methods were utilized for data analysis., Results: The mean age (standard deviation [SD]) of the study participants was 13.68 (1.29). The mean age (SD) at menarche was 13.29 (0.96). Based on the overall menstrual hygiene management score, 377 (62.83%) of the study participants were engaged in good menstrual hygiene management, while 223 (37.17%) were engaged in poor menstrual hygiene management. The mean score (SD) was 7.80 (±0.43). Compared to those aged 17-19 years, those aged 10-13 years had a 0.36 (95% CI 0.17-0.75) decreased odds of good menstrual hygiene, while those aged 14-16 years had a 0.29 (95% CI 0.14-0.59) decreased odds of good menstrual hygiene. The adjusted odds ratios were 0.32 (95% CI 0.19-0.65) and 0.25 (95% CI 0.12-0.41) respectively. Out of 600 study participants, 229 (38.17%) reported school absenteeism at least once in the last 1 year because of menstruation. The mean (standard deviation) duration of school absenteeism was 2.4 (0.78) days per menstrual cycle. The commonest reason for menstruation-related school absenteeism was pain, wherein 105 (45.85%) study participants reported this reason., Conclusion: In our study, we observed that over two-thirds of the study participants were engaged in good menstrual hygiene practices, while ~40% of them reported menstrual-related school absenteeism. Our study also found evidence that the age of the school girls was associated with their menstrual hygiene management practices. We recommend further research on the impact of menstruation and its management on the academic performance of adolescent school girls. Efforts are also required to develop the capacity of teachers to teach menstrual hygiene education., Competing Interests: There are no conflicts of interest., (Copyright: © 2024 Journal of Family Medicine and Primary Care.)
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- 2024
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10. Cytochrome C as a potential clinical marker for diagnosis and treatment of glioma.
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Rana R, Huirem RS, Kant R, Chauhan K, Sharma S, Yashavarddhan MH, Chhabra SS, Acharya R, Kalra SK, Gupta A, Jain S, and Ganguly NK
- Abstract
Gliomas are the most prevalent kind of malignant and severe brain cancer. Apoptosis regulating mechanisms are disturbed in malignant gliomas, as they are in added forms of malignancy. Understanding apoptosis and other associated processes are thought to be critical for understanding the origins of malignant tumors and designing anti-cancerous drugs for the treatment. The purpose of this study was to evaluate the variation in the expression level of several apoptotic proteins that are responsible for apoptosis in low to high-grade glioma. This suggests a significant change in the expression of five apoptotic proteins: Clusterin, HSP27, Catalase, Cytochrome C, and SMAC. Cytochrome C, one of the five substantially altered proteins, is a crucial component of the apoptotic cascade. The complex enzyme Cytochrome C is involved in metabolic pathways such as respiration and cell death. The results demonstrated that Cytochrome C expression levels are lower in glioma tissues than in normal tissues. What's more intriguing is that the expression level decreases with an increase in glioma grades. As a result, the discovery shows that Cytochrome C may be a target for glioma prognostic biomarkers., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Rana, Huirem, Kant, Chauhan, Sharma, Yashavarddhan, Chhabra, Acharya, Kalra, Gupta, Jain and Ganguly.)
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- 2022
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11. Challenges Encountered and Pattern-Based Analysis of Bone Marrow Biopsy in Lymphomas: An Institutional Experience.
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Kalra SK, Sancheti S, Somal PK, Sali AP, Sharma A, Goel A, Jain S, Dora TK, Gulia A, and Divetia JV
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Objective The evaluation of bone marrow (BM) status is an integral part of the initial workup of patients diagnosed with lymphoma as it plays an important role in staging and predicting prognosis in these patients. This article determines the incidence and pattern of BM involvement in lymphoma cases and distinguishes benign from malignant lymphoid aggregates in BM biopsies. Materials and Methods The study group included 121 cases of Hodgkin and non-Hodgkin lymphomas for which BM biopsies were performed, fixed in acetic acid-zinc formalin solution, decalcified using 10% formic acid, and subjected to hematoxylin and eosin and immunohistochemistry. Results The overall incidence of BM biopsy involvement in our study was 31.4% (37/118), including 34.7% (35/101) in cases of B cell lymphomas, 25% (2/8) in cases of T cell lymphomas, and no involvement in Hodgkin lymphoma. The predominant histological pattern of BM involvement was diffused (14/37; 37.8%), followed by interstitial (10/37; 27.1%). Five cases revealed benign nonparatrabecular lymphoid aggregates which could be confused with lymphomatous involvement, especially in low grade lymphomas. Conclusion A careful examination of the BM biopsies along with clinical history, peripheral blood examination, flow cytometry, and immunohistochemistry will help in arriving at the correct diagnosis., Competing Interests: Conflict of Interest None declared., (The Indian Association of Laboratory Physicians. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. ( https://creativecommons.org/licenses/by-nc-nd/4.0/ ).)
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- 2022
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12. Plasma-Derived Extracellular Vesicles Reveal Galectin-3 Binding Protein as Potential Biomarker for Early Detection of Glioma.
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Rana R, Chauhan K, Gautam P, Kulkarni M, Banarjee R, Chugh P, Chhabra SS, Acharya R, Kalra SK, Gupta A, Jain S, and Ganguly NK
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Gliomas are the most common type of the malignant brain tumor, which arise from glial cells. They make up about 40% of all primary brain tumors and around 70% of all primary malignant brain tumors. They can occur anywhere in the central nervous system (CNS) and have a poor prognosis. The average survival of glioma patients is approximately 6-15 months with poor aspects of life. In this edge, identification of proteins secreted by cancer cells is of special interest because it may provide a better understanding of tumor progression and provide early diagnosis of the diseases. Extracellular vesicles (EVs) were isolated from pooled plasma of healthy controls (n=03) and patients with different grades of glioma (Grade I or II or III, n=03 each). Nanoparticle tracking analysis, western blot, and flow cytometry were performed to determine the size, morphology, the concentration of glioma-derived vesicles and EV marker, CD63. Further, iTRAQ-based LC-MS/MS analysis of EV protein was performed to determine the differential protein abundance in extracellular vesicles across different glioma grades. We further verified galectin-3 binding protein (LGALS3BP) by ELISA in individual blood plasma and plasma-derived vesicles from control and glioma patients (n=40 each). Analysis by Max Quant identified 123 proteins from the pooled patient exosomes, out of which 34, 21, and 14 proteins were found to be differentially abundant by more than 1.3-fold in the different grades of glioma grade I, pilocytic astrocytoma; grade II, diffuse astrocytoma; grade III, anaplastic astrocytoma, respectively, in comparison with the control samples. A total of seven proteins-namely, CRP, SAA2, SERPINA3, SAA1, C4A, LV211, and KV112-showed differential abundance in all the three grades. LGALS3BP was seen to be upregulated across the different grades, and ELISA analysis from individual blood plasma and plasma-derived extracellular vesicles confirmed the increased expression of LGALS3BP in glioma patients (p<0.001). The present study provides LGALS3BP as a potential biomarker for early detection of glioma and improve survival outcome of the patient. The present study further provides the information of progression and monitoring the tumor grades (grade 1, grade II, grade III)., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Rana, Chauhan, Gautam, Kulkarni, Banarjee, Chugh, Chhabra, Acharya, Kalra, Gupta, Jain and Ganguly.)
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- 2021
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13. Morphology and Immunoprofiling of Benign Lymphoid Aggregates in Bone Marrow Biopsies of Lymphoma Patients.
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Kalra SK, Sancheti S, Somal PK, Sali AP, Goel A, Jain S, and Kapoor R
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- 2021
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14. Exploring the role of epidermal growth factor receptor variant III in meningeal tumors.
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Rana R, Rathi V, Chauhan K, Jain K, Chhabra SS, Acharya R, Kalra SK, Gupta A, Jain S, Ganguly NK, and Yadav DK
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- Biomarkers, Tumor genetics, ErbB Receptors genetics, Humans, Meningeal Neoplasms genetics, Meningeal Neoplasms metabolism, Meningioma genetics, Meningioma metabolism, Middle Aged, Neoplasm Grading, Biomarkers, Tumor metabolism, ErbB Receptors metabolism, Genetic Variation, Meningeal Neoplasms pathology, Meningioma pathology
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Meningioma is the second most common type of intracranial brain tumor. Immunohistochemical techniques have shown prodigious results in the role of epidermal growth factor receptor variant III (EGFR vIII) in glioma and other cancers. However, the role of EGFR vIII in meningioma is still in question. This study attempt the confer searches for the position attained by EGFR vIII in progression and expression of meningioma. Immunohistochemistry technique showed that EGFR vIII is highly expressed in benign tumors as compared to the atypical meningioma with a highly significant p-value (p<0.05). Further analysis by flow cytometry results supported these findings thus presented high intensity of EGFR vIII in low grades of meningioma. The study revealed that the significant Ki 67 values, to predictor marker for survival and prognosis of the patients. Higher expression of EGFR vIII in low grades meningiomas as compared to high-grade tumors indicate towards its oncogenic properties. To our knowledge, limited studies reported in literature expressing the EGFR vIII in meningioma tumors. Hence, Opinions regarding the role that EGFR vIII in tumorigenesis and tumor progression are clearly conflicting and, therefore, it is crucial not only to find out its mechanism of action, but also to definitely identify its role in meningioma., Competing Interests: The authors declare they have no conflicts of interest.
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- 2021
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15. Papulonodular Lesions in a Patient of Diabetes Mellitus Receiving Sitagliptin and Metformin.
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Agrawal P, Gautam A, Pursnani N, Farooqui M, and Kalra SK
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Competing Interests: There are no conflicts of interest.
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- 2021
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16. Advancement in our understanding of immune response against Encephalitozoon infection.
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Aseeja P, Shaikh Y, Bajpai A, Sirsikar P, and Kalra SK
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- Humans, Immunity, Cellular, Immunity, Innate, Immunocompromised Host, Encephalitozoon, Encephalitozoonosis
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Microsporidia are a group of obligate, intracellular, spore-forming eukaryotic pathogens, which predominantly infects immunocompromised individuals worldwide. Encephalitozoon spp. is one of the most prevalent microsporidia known to infect humans. Host immune system plays a major role in combating pathogens including Encephalitozoon spp. infecting humans. Both innate and adaptive arms of host immune system work together in combating Encephalitozoon infection. Researchers are conducting studies to elucidate the role of both arms of immune system against Encephalitozoon infection. In addition to cell-mediated adaptive immunity, role of innate immunity is also being highlighted in clearance of Encephalitozoon spp. from host body. Therefore, the current review will give a clear and consolidated update on the role of innate as well as adaptive immunity in protection against Encephalitozoon spp., (© 2021 John Wiley & Sons Ltd.)
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- 2021
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17. Prevalence and Genetic Characterization of Cryptosporidium and Microsporidia Infecting Hematological Malignancy Patients.
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Ghoshal U, Kalra SK, Tejan N, Ranjan P, Dey A, and Nityanand S
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- Feces, Genotype, Humans, Male, Prevalence, Cryptosporidiosis epidemiology, Cryptosporidium genetics, Enterocytozoon, Hematologic Neoplasms complications, Microsporidia genetics, Microsporidiosis epidemiology
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Purpose: To evaluate the prevalence of Cryptosporidium and Microsporidia, associated risk factors and species identification in patients with haematological malignancies (HM)., Methods: A total of 148 consecutive patients with HM and 101 healthy subjects were evaluated for Cryptosporidium and Microsporidia using modified Kinyoun and modified Trichrome staining. Clinical, demographic and laboratory parameters were studied. The species of Cryptosporidium and Microsporidia were studied using PCR-RFLP., Results: Of 148 HM patients initially screened, 47 were excluded from the final analysis due to inadequate clinical records. Patients with HM [n = 101, 63 (62.4%) male] more often had Cryptosporidium than healthy subjects [n = 101, 65 (74.4%) male] [3/101 (3%) vs. 0/101 (0%), p = 0.02]. Two of 101 (2%) HM patients and none of the healthy subjects had Microsporidia (p = 0.155). Diarrhea was more prevalent in HM patients with Cryptosporidium than those without [3, 100% vs. 39/96, 40.62%; p = 0.04). Both patients infected with Microsporidia presented with persistent diarrhea and fever. Cryptosporidium hominis was identified in all the three HM patients. Enterocytozoon bieneusi was identified in one HM patient infected with Microsporidia, which was classified as genotype Ind2., Conclusion: Cryptosporidium and Microsporidia may infect HM patients leading to overwhelming diarrhea. The commonest species of Cryptosporidium and Microsporidia found to infect HM patients are C. hominis and E. bieneusi.
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- 2021
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18. Strategies to ensure efficient laboratory functioning while navigating through the COVID-19 crisis in developing countries: An early experience from a tertiary care centre in India.
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Somal PK, Sancheti S, Sali AP, Bansal S, Kalra SK, Thakur A, Gupta N, and Kapoor R
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- COVID-19 epidemiology, COVID-19 transmission, COVID-19 virology, Cancer Care Facilities organization & administration, Cancer Care Facilities standards, Clinical Laboratory Services standards, Decontamination methods, Decontamination standards, Developing Countries, Disinfection methods, Disinfection organization & administration, Disinfection standards, Hospitals, Rural organization & administration, Hospitals, Rural standards, Humans, India epidemiology, Infection Control standards, Medical Laboratory Personnel organization & administration, Medical Laboratory Personnel standards, Pandemics prevention & control, SARS-CoV-2 isolation & purification, SARS-CoV-2 pathogenicity, Specimen Handling standards, Tertiary Care Centers standards, Workforce organization & administration, Workforce standards, COVID-19 diagnosis, Clinical Laboratory Services organization & administration, Infection Control organization & administration, Infectious Disease Transmission, Patient-to-Professional prevention & control, Tertiary Care Centers organization & administration
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Background: The coronavirus disease 2019 (COVID 19) is a zoonotic viral infection that originated in Wuhan, China, in December 2019. It was declared a pandemic by the World Health Organization shortly thereafter. This pandemic is going to have a lasting impact on the functioning of pathology laboratories due to the frequent handling of potentially infectious samples by the laboratory personnel. To deal with this unprecedented situation, various national and international guidelines have been put forward outlining the precautions to be taken during sample processing from a potentially infectious patient., Purpose: Most of these guidelines are centered around laboratories that are a part of designated COVID 19 hospitals. However, proper protocols need to be in place in all laboratories, irrespective of whether they are a part of COVID 19 hospital or not as this would greatly reduce the risk of exposure of laboratory/hospital personnel. As part of a laboratory associated with a rural cancer hospital which is not a dedicated COVID 19 hospital, we aim to present our institute's experience in handling pathology specimens during the COVID 19 era., Conclusion: We hope this will address the concerns of small to medium sized laboratories and help them build an effective strategy required for protecting the laboratory personnel from risk of exposure and also ensure smooth and optimum functioning of the laboratory services., Competing Interests: None
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- 2021
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19. Prognostic factors associated with small for gestational age babies in a tertiary care hospital of Western Nepal: A cross-sectional study.
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Chaudhary N, Yadav SN, Kalra SK, Pathak S, Gupta BK, Shrestha S, Patel M, Satia I, Sadhra S, Bolton CE, and Kurmi OP
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Background: Small for gestational age (SGA) is common among newborns in low-income countries like Nepal and has higher immediate mortality and morbidities., Objectives: To study the prevalence and prognostic factors of SGA babies in Western Nepal., Methods: A cross-sectional study (November 2016-October 2017) was conducted in a tertiary care hospital in Western Nepal. Socio-demographic, lifestyle factors including diet, and exposures including smoking and household air pollution in mothers who delivered newborns appropriate for gestational age (AGA), SGA and large for gestational age (LGA) were recorded. Logistic regression was carried out to find the odds ratio of prognostic factors after adjusting for potential confounders., Results: Out of 4000 delivered babies, 77% (n = 3078) were AGA, 20.3% (n = 813) were SGA and 2.7% (n = 109) were LGA. The proportion of female-SGA was greater in comparison to male-SGA (n = 427, 52.5% vs n = 386, 47.5%). SGA babies were born to mothers who had term, preterm, and postterm delivery in the following proportions 70.1%, 19.3%, and 10.6%, respectively. The average weight gain (mean ± SD) by mothers in AGA pregnancies was 10.3 ± 2.4 kg, whereas in SGA were 9.3 ± 2.4 kg. In addition to low socioeconomic status (OR 1.9, 95% CI 1.1, 3.2), other prognostic factors associated with SGA were lifestyle factors such as low maternal sleep duration (OR 5.1, CI 3.6, 7.4) and monthly or less frequent meat intake (OR 5.0, CI 3.2, 7.8). Besides smoking (OR 8.8, CI 2.1, 36.3), the other major environmental factor associated with SGA was exposure to household air pollution (OR 5.4, 4.1, 6.9) during pregnancy. Similarly, some of the adverse health conditions associated with a significantly higher risk of SGA were anemia, oligohydramnios, and gestational diabetes., Conclusions: SGA is common in Western Nepal and associated with several modifiable prognostic factors., Competing Interests: The authors declare that there is no conflict of interests., (© 2021 The Authors. Health Science Reports published by Wiley Periodicals LLC.)
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- 2021
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20. Anaplastic thyroid carcinoma with rhabdoid phenotype: An unusual case and a comprehensive review.
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Bansal S, Sancheti S, Kaur S, Somal P, Kalra SK, and Sali AP
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- Adult, Aged, Aged, 80 and over, Biopsy, Fine-Needle, Female, Humans, Immunohistochemistry, Lung Neoplasms secondary, Male, Middle Aged, Neck pathology, Thyroid Carcinoma, Anaplastic surgery, Thyroid Neoplasms surgery, Thyroidectomy, Tomography, X-Ray Computed, Rhabdoid Tumor pathology, Thyroid Carcinoma, Anaplastic diagnosis, Thyroid Carcinoma, Anaplastic pathology, Thyroid Neoplasms diagnosis, Thyroid Neoplasms pathology
- Abstract
Anaplastic thyroid carcinoma (ATC) is a highly aggressive thyroid malignancy predominantly affecting the elderly with a fatal outcome. ATC with rhabdoid phenotype is a rare variant, with only a few cases reported in the literature to date. We herein report a case of a 44-year old female diagnosed as ATC with rhabdoid phenotype. She had a slow-growing neck mass with no gross extrathyroidal extension (ETE) or nodal/distant metastasis at presentation. Computed tomography of the neck showed a well-defined heterogeneously hypodense nodule in the right lobe of the thyroid. On cytology, a diagnosis of papillary thyroid carcinoma (PTC) with possible anaplastic transformation was made based on the presence of vague papillae with focal nuclear features of PTC and atypical pleomorphic/rhabdoid cells. The total thyroidectomy specimen showed a relatively circumscribed lesion with no gross ETE. Histopathological examination revealed sheets of rhabdoid cells with a focus of poorly differentiated thyroid carcinoma. On immunohistochemistry, rhabdoid cells were positive for AE1/AE3, focally positive for PAX8 and were negative for TTF-1, synaptophysin, desmin, myogenin, S100P, and SMA. The neck lymph nodes were non-metastatic. The patient was further treated with adjuvant radioactive iodine. Four-months post-operatively, the patient developed pulmonary metastasis which on biopsy examination revealed metastatic ATC. Apart from being a rare tumor type, this case is unusual with its presentation too; wherein, unlike described earlier in the literature the patient had a relatively mitigated clinical course with no gross ETE or nodal/distant metastatic disease. We also review the relevant literature along with this case., (© 2020 Wiley Periodicals LLC.)
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- 2020
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21. Nanoparticles based therapeutic efficacy against Acanthamoeba: Updates and future prospect.
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Sharma G, Kalra SK, Tejan N, and Ghoshal U
- Subjects
- Acanthamoeba growth & development, Acanthamoeba Keratitis drug therapy, Acanthamoeba Keratitis parasitology, Amebiasis drug therapy, Amebiasis mortality, Amebiasis parasitology, Amebicides pharmacology, Amebicides therapeutic use, Biguanides administration & dosage, Biguanides pharmacology, Biguanides therapeutic use, Central Nervous System Protozoal Infections drug therapy, Central Nervous System Protozoal Infections mortality, Central Nervous System Protozoal Infections parasitology, Chlorhexidine administration & dosage, Chlorhexidine pharmacology, Chlorhexidine therapeutic use, Drug Delivery Systems, Immunocompetence, Immunocompromised Host, Infectious Encephalitis drug therapy, Infectious Encephalitis mortality, Infectious Encephalitis parasitology, Nanoparticles classification, Nanoparticles therapeutic use, Trophozoites drug effects, Acanthamoeba drug effects, Amebicides administration & dosage, Nanoparticles administration & dosage
- Abstract
Acanthamoeba sp. is a free living amoeba that causes severe, painful and fatal infections, viz. Acanthamoeba keratitis and granulomatous amoebic encephalitis among humans. Antimicrobial chemotherapy used against Acanthamoeba is toxic to human cells and show side effects as well. Infections due to Acanthamoeba also pose challenges towards currently used antimicrobial treatment including resistance and transformation of trophozoites to resistant cyst forms that can lead to recurrence of infection. Therapeutic agents targeting central nervous system infections caused by Acanthamoeba should be able to cross blood-brain barrier. Nanoparticles based drug delivery put forth an effective therapeutic method to overcome the limitations of currently used antimicrobial chemotherapy. In recent years, various researchers investigated the effectiveness of nanoparticles conjugated drug and/or naturally occurring plant compounds against both trophozoites and cyst form of Acanthamoeba. In the current review, a reasonable effort has been made to provide a comprehensive overview of various nanoparticles tested for their efficacy against Acanthamoeba. This review summarizes the noteworthy details of research performed to elucidate the effect of nanoparticles conjugated drugs against Acanthamoeba., (Copyright © 2020 Elsevier Inc. All rights reserved.)
- Published
- 2020
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22. Acanthamoeba and its pathogenic role in granulomatous amebic encephalitis.
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Kalra SK, Sharma P, Shyam K, Tejan N, and Ghoshal U
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- Acanthamoeba classification, Acanthamoeba genetics, Central Nervous System Protozoal Infections diagnosis, Central Nervous System Protozoal Infections epidemiology, Central Nervous System Protozoal Infections therapy, Genotype, Granuloma parasitology, Humans, Immunocompetence, Immunocompromised Host, Infectious Encephalitis diagnosis, Infectious Encephalitis epidemiology, Infectious Encephalitis therapy, Acanthamoeba pathogenicity, Central Nervous System Protozoal Infections parasitology, Infectious Encephalitis parasitology
- Abstract
Acanthamoeba is a free-living amoeba that is widely distributed in the environment. It is an opportunist protist, which is known to cause rare yet fatal infection of the central nervous system (CNS), granulomatous amebic encephalitis (GAE) in humans. GAE cases are increasingly been reported among immunocompromised patients, with few cases in immunocompetent hosts. Diagnosis of GAE primarily includes neuroimaging, microscopy, cerebrospinal fluid (CSF) culture, histopathology, serology and molecular techniques. Early diagnosis is vital for proper management of infected patients. Combination therapeutic approach has been tried in various GAE cases reported worldwide. We tried to present a comprehensive review, which summarizes on the epidemiology of GAE caused by Acanthamoeba along with the associated clinical symptoms, risk factors, diagnosis and treatment of GAE among infected patients., (Copyright © 2019 Elsevier Inc. All rights reserved.)
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- 2020
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23. Pericardial Fluid Cytology: A Rosettey Affair….
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Kalra SK, Sali AP, Somal PK, and Sancheti S
- Subjects
- Adult, Bone Neoplasms pathology, Humans, Male, Pericardial Effusion etiology, Prognosis, Sarcoma, Ewing pathology, Sarcoma, Synovial pathology, Bone Neoplasms complications, Cytodiagnosis methods, Pericardial Effusion diagnosis, Sarcoma, Ewing complications, Sarcoma, Synovial complications
- Published
- 2020
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24. Evaluation of the Antimicrobial Efficacy of Herbal Extracts Added to Root Canal Sealers of Different Bases: An In Vitro Study.
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Devi MT, Saha S, Tripathi AM, Dhinsa K, Kalra SK, and Ghoshal U
- Abstract
Aim: This study aimed to evaluate and compare the antimicrobial efficacy of root canal sealers of different bases when mixed with herbal extracts., Materials and Methods: An evaluation of three sealers (Endomethasone, AH plus, Apexit plus) mixed with three herbal extracts [ Emblica officinalis ( Amla ), Myristica fragrans (Nutmeg) and Salvadora persica (Miswak)] was done against nine strains of bacteria at various time intervals using the agar diffusion test. Moreover, measurement of the mean zones of inhibition was done., Results: The largest zones of bacterial growth inhibition were observed with Endomethasone mixed with Myristica fragrans (Nutmeg) followed in the descending order by AH plus mixed with Salvadora persica (Miswak) and Apexit plus mixed with Salvadora persica (Miswak) respectively. The differences between zones of inhibition among different groups were found to be statistically significant., Conclusion: Zinc-oxide-eugenol-based sealer (Endomethasone) mixed with herbal extracts produced the largest inhibitory zones followed in the descending order by resin-based sealer (AH plus) and calcium-hydroxide-based sealer (Apexit plus), respectively., Clinical Significance: Herbal plants such as [ Emblica officinalis ( Amla ), Myristica fragrans (Nutmeg) and Salvadora persica (Miswak)] are rich sources of bioactive compounds that possess antimicrobial properties. Mixing their extracts with endodontic sealers can produce additive antimicrobial effect against microbes found in inflamed pulp., How to Cite This Article: Devi MT, Saha S, Tripathi AM, et al. Evaluation of the Antimicrobial Efficacy of Herbal Extracts Added to Root Canal Sealers of Different Bases: An In Vitro Study. Int J Clin Pediatr Dent 2019;12(5):398-404., Competing Interests: Source of support: Nil Conflict of interest: None, (Copyright © 2019; Jaypee Brothers Medical Publishers (P) Ltd.)
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- 2019
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25. A road less travelled: Clinical comparison of HIV seropositive and seronegative patients with cystoisosporiasis - An 11-year experience from a tertiary care centre in Northern India.
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Ghoshal U, Jain V, Tejan N, Kalra SK, Ranjan P, Sinha R, Gangwar D, and Ghoshal UC
- Subjects
- Adolescent, Adult, Child, Coccidiosis parasitology, Female, Humans, India, Male, Microscopy, Middle Aged, Prospective Studies, Seasons, Tertiary Care Centers, Young Adult, Coccidiosis epidemiology, Coccidiosis pathology, HIV Infections complications, Sarcocystidae isolation & purification
- Abstract
Background: Cystoisospora is a well-known opportunistic enteric parasite among human immunodeficiency virus (HIV) seropositive patients but there is a paucity of data among HIV negative patients. This study investigated Cystosporiasis on both HIV positive and negative patients, with or without diarrhea, presenting to a tertiary care and super specialty center of northern India., Methodology: Oocysts of Cystoisospora were detected on light microscopy, by modified Kinyoun staining of stool specimens, over an 11-year study period., Results: Of the 10,233 stool specimens evaluated, Cystoisospora was detected in 64 patients, 37 (57.81%) of whom were HIV positive. Year-wise analysis showed an overall declining trend of cystoisosporiasis. Maximum cases were detected in May and June in HIV positive patients and February and September among HIV negative patients. Among HIV positive patients, the mean CD4 count was 152.04 ± 81.12cells/μL, mean absolute eosinophil count (AEC) was 229.16 ± 175.62 cells/μL and 12.5% patients had mild eosinophilia. Tuberculosis was the most common co-morbidity. Dual infections of Cystoisospora with Cryptosporidium and Giardia were also seen. Among HIV negative patients, eight had primary autoimmune disorders, seven were solid organ transplant recipients and the rest had chronic bowel diseases. The mean AEC was 485.47 ± 414.88 cells/μL, with 14.81% patients showing mild and 11.11% showing marked eosinophilia. Dual infection with Giardia was seen. Recurrent cystoisosporiasis was noted, despite cotrimoxazole treatment in a single case., Conclusion: The epidemiology of cystoisosporiasis differs between HIV seropositive and seronegative patients in terms of year-wise and month-wise trends, co-infections and most importantly, AECs., Competing Interests: None
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- 2018
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26. Primary pineal malignant melanoma - illustrated review.
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Biswas A, Chaudhari PB, M SK, Sigamani E, Sharma MC, Kalra SK, Julka PK, and Rath GK
- Subjects
- Female, Humans, Middle Aged, Melanoma pathology, Melanoma therapy, Pinealoma pathology, Pinealoma therapy
- Abstract
Aim: Primary pineal melanoma is a rare tumor. We herein review the histogenesis, pathology, radiology and therapeutic options of this rare tumor., Material and Methods: We conducted a PUBMED search using a combination of keywords such as "primary pineal melanoma", "CNS melanoma", and "pineal tumor" and identified 16 cases of primary pineal melanoma. Clinical features, pathologic characteristics and treatment details of these patients were noted from respective case reports. We also describe a case of a 45-year-old Indian woman with primary pineal melanoma treated with a combination of surgery and post-op radiation., Results: The median age at presentation is 50 years. Median duration of symptoms is 6 weeks. Common symptoms at presentation include headache (58.8%), personality changes (41.2%), gait disturbance (35.3%) and Parinaud's syndrome (29.4%). Surgery, radiotherapy and chemotherapy have been used in 29.4%, 47.1% and 23.5% of patients respectively. Median overall survival is 56 weeks. Leptomeningeal dissemination and ventricular ependymal spread were noted in 70.6% and 35.3% patients, respectively., Conclusion: Combined modality treatment comprising maximal safe surgery and post-operative radiation should be preferred in patients with localized pineal melanoma without leptomeningeal dissemination. Taking a cue from other subsites of melanoma, chemotherapy can perhaps be deferred until recurrence.
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- 2015
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27. Randomized controlled trial of benzocaine versus placebo spray for pain relief at hysterosalpingogram.
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Bachman EA, Senapati S, Sammel MD, and Kalra SK
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- Adult, Double-Blind Method, Female, Humans, Pain Measurement, Patient Satisfaction, Benzocaine therapeutic use, Hysterosalpingography adverse effects, Pain drug therapy
- Abstract
Many women experience pain during hysterosalpingogram (HSG). This prospective, randomized, double-blinded, placebo-controlled study assessed whether the use of benzocaine spray during HSG is associated with reduced pain as compared with placebo. Thirty women presenting for HSG were enrolled and randomized to either benzocaine or saline spray. Treatment groups were similar in age, race, parity, pre-procedure oral analgesic use and history of dysmenorrhoea and/or chronic pelvic pain. Median change in pain score from baseline to procedure was 50.6mm (-7.4 to 98.8mm) in the benzocaine group and 70.4mm (19.8 to 100mm) in the placebo group. There was no difference between groups after adjusting for history of dysmenorrhoea. There was no difference in resolution of pain in benzocaine versus placebo groups at 5 min post procedure--median pain score difference -11.1 (-90.1 to 18.5) versus -37.0 (-100 to 1.2)--or at 30 min post procedure. Satisfaction scores did not differ by treatment and did not correlate with pain score during the procedure (rho=0.005). The use of benzocaine spray does not significantly improve pain relief during HSG nor does it hasten resolution of pain post HSG. Of interest, patient satisfaction was not correlated with pain. Many women experience pain during hysterosalpingogram (HSG), which is a test used to evaluate the uterine cavity and fallopian tube. We conducted a prospective, randomized, double-blinded, placebo-controlled study to assess whether the use of benzocaine spray during HSG is associated with reduced pain as compared with placebo. Thirty women presenting for HSG were enrolled and randomized to either benzocaine or saline spray. Treatment groups were similar in age, race, previous pregnancies, pre-procedure oral analgesic use and history of dysmenorrhoea (painful periods) and/or chronic pelvic pain. There was no difference in pain scores or resolution of pain between the two groups. Satisfaction scores did not differ by treatment group and did not correlate with the pain score during the procedure. We conclude that the use of benzocaine spray does not significantly improve pain relief during HSG nor does it hasten resolution of pain post HSG. Of interest, patient satisfaction was not correlated with pain., (Copyright © 2014 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2014
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28. Live birth rates and birth outcomes by diagnosis using linked cycles from the SART CORS database.
- Author
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Stern JE, Brown MB, Wantman E, Kalra SK, and Luke B
- Subjects
- Adult, Female, Humans, Male, Pregnancy, United States, Birth Rate, Databases, Factual, Live Birth, Pregnancy Outcome, Primary Ovarian Insufficiency diagnosis, Reproductive Techniques, Assisted
- Abstract
Purpose: This study uses linked cycles of assisted reproductive technology (ART) to examine cumulative live birth rates, birthweight, and length of gestation by diagnostic category., Methods: We studied 145,660 women with 235,985 ART cycles reported to the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System during 2004-2010. ART cycles were linked to individual women by name, date of birth, social security number, partner's name, and sequence of ART treatments. The study population included the first four autologous oocyte cycles for women with a single diagnosis of male factor, endometriosis, ovulation disorders, diminished ovarian reserve, or unexplained infertility. Live birth rates were calculated per cycle, per cycle number (1-4), and cumulatively. Birthweight and length of gestation were calculated for singleton births., Results: Within each diagnosis, live birth rates were highest in the first cycle and declined with successive cycles. Women with diminished ovarian reserve had the lowest live birth rate (cumulative rate of 28.3 %); the live birth rate for the other diagnoses were very similar (cumulative rates from 62.1 % to 65.7 %). Singleton birthweights and lengths of gestation did not differ substantially across diagnoses, ranging from 3,112 to 3,286 g and 265 to 270 days, respectively. These outcomes were comparable with national averages for singleton births in the United States (3,296 g and 271 days)., Conclusion: Women with the diagnosis of diminished ovarian reserve had substantially lower live birth rates. However, singleton birthweights and lengths of gestation outcomes were similar across all other diagnoses.
- Published
- 2013
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29. Is the fertile window extended in women with polycystic ovary syndrome? Utilizing the Society for Assisted Reproductive Technology registry to assess the impact of reproductive aging on live-birth rate.
- Author
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Kalra SK, Ratcliffe SJ, and Dokras A
- Subjects
- Adult, Cohort Studies, Female, Humans, Polycystic Ovary Syndrome diagnosis, Polycystic Ovary Syndrome therapy, Pregnancy, Registries, Retrospective Studies, Societies, Medical trends, Fertility physiology, Live Birth epidemiology, Polycystic Ovary Syndrome epidemiology, Pregnancy Rate trends, Reproduction physiology, Reproductive Techniques, Assisted trends
- Abstract
Objective: To assess whether women with polycystic ovary syndrome (PCOS) follow the same age-related decline in IVF outcomes as women with tubal factor infertility over the reproductive life span. PCOS is characterized by increased ovarian reserve as assessed by antral follicle counts and anti-Müllerian hormone levels. It is unclear whether these surrogate markers of ovarian reserve reflect a true lengthening of the reproductive window., Design: Retrospective cohort., Setting: Not applicable., Patient(s): Women with PCOS and tubal factor infertility (42,286 cycles)., Intervention(s): IVF., Main Outcome Measure(s): Pregnancy and live-birth rates., Result(s): The mean number of oocytes retrieved was higher in women with PCOS compared with in women with tubal factor (16.4 vs. 12.8; odds ratio [OR], 1.27; 95% confidence interval [CI], 1.25-1.29). The clinical pregnancy (42.5% vs. 35.8%; OR, 1.32; 95% CI, 1.27-1.38) and live-birth rates were also increased in women with PCOS (34.8% vs. 29.1%; OR, 1.30; 95% CI, 1.24-1.35). A similar rate of decline in clinical pregnancy and live-birth rates was noted in both groups (20-44 years). The implantation, clinical pregnancy, miscarriage, and live-birth rates were not significantly different for each year after age 40 in the two groups., Conclusion(s): Despite a higher oocyte yield in all age groups, women with PCOS over age 40 had similar clinical pregnancy and live-birth rates compared with women with tubal factor infertility. These findings suggest that the reproductive window may not be extended in PCOS and that patients with infertility should be treated in a timely manner despite indicators of high ovarian reserve., (Copyright © 2013 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.)
- Published
- 2013
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30. Extended embryo culture and an increased risk of preterm delivery.
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Kalra SK, Ratcliffe SJ, Barnhart KT, and Coutifaris C
- Subjects
- Adult, Embryo Transfer methods, Female, Humans, Infant, Low Birth Weight, Infant, Newborn, Obstetric Labor, Premature etiology, Pregnancy, Retrospective Studies, Risk, Embryo Culture Techniques, Obstetric Labor, Premature epidemiology
- Abstract
Objective: To estimate whether extended embryo culture is associated with preterm delivery, very preterm delivery, low birth weight, or a combination of these in neonates conceived through in vitro fertilization (IVF)., Methods: U.S. IVF live births were identified using the Society of Assisted Reproductive Technologies database (2004-2006). Associations were assessed in neonates born after extended embryo culture (day 5 to 6) as compared with cleavage-stage transfer (day 3). Analyses were stratified by singleton and twin birth. Subanalyses in neonates born to oocyte donation recipients and primiparous patients were performed., Results: A total of 69,039 live births were identified; 46,288 neonates were born after cleavage-stage embryo transfer and 22,751 neonates after blastocyst transfer. Singleton IVF births conceived after blastocyst transfer, as compared with cleavage-stage transfer, were at an increased risk for preterm delivery (18.6% compared with 14.4%, respectively; adjusted odds ratio [OR] 1.39, P<.001) and very preterm delivery (2.8% compared with 2.2%, respectively; adjusted OR 1.35, P<.001), but not low birth weight (10.3% compared with 9.1%, respectively; adjusted OR 1.10, P=.06). Findings remained robust in subanalyses. In twin births, adverse outcome was more prevalent in both groups and an association of blastocyst transfer was noted for preterm delivery (67.3% compared with 60.5%; adjusted OR 1.81, P<.001) very preterm delivery (adjusted OR 14.0% compared with 12.0%; adjusted OR 1.75, P<.001), and low birth weight (71.1% compared with 68.6%, adjusted OR 1.19, P<.001)., Conclusion: Extended culture of embryos from cleavage stage to blastocyst stage increases the risk of preterm delivery. Unless blastocyst transfer results in a reduction in multiple births, it may be contributing to the perinatal morbidity associated with IVF-assisted conception.
- Published
- 2012
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31. Letter to the editor.
- Author
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Chauhan SK, Gangopadhyay S, Shukla A, and Sharma S
- Published
- 2012
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32. Bilateral acute foot drop following lumbar disc herniation--a case report.
- Author
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Kumar R, Kalra SK, Vaid VK, and Mahapatra AK
- Subjects
- Humans, Intervertebral Disc Displacement surgery, Male, Middle Aged, Gait Disorders, Neurologic etiology, Intervertebral Disc Displacement complications, Lumbar Vertebrae, Polyradiculopathy etiology
- Abstract
Cauda equina compression and acute unilateral foot drop are commonly described associations with prolapsed intervertebral lumbar disc. The bilateral acute foot drop however is a rare occurrence. A 45-year-old adult male labourer presented with 1 month history of low backache, with acute exacerbation 1 day later. He developed acute bilateral foot drop and urinary retention within 2 hours. An urgent magnetic resonance imaging (MRI) revealed large central disc prolapse at L3-L4 level with significant canal stenosis. He was operated on emergent basis following which he had progressive neurological improvement.
- Published
- 2011
33. Ovarian stimulation and low birth weight in newborns conceived through in vitro fertilization.
- Author
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Kalra SK, Ratcliffe SJ, Coutifaris C, Molinaro T, and Barnhart KT
- Subjects
- Adult, Embryo Transfer, Female, Humans, Infant, Newborn, Male, Pregnancy, Pregnancy Outcome, Risk, United States, Fertilization in Vitro, Infant, Low Birth Weight, Ovulation Induction
- Abstract
Objective: Singleton neonates born after in vitro fertilization (IVF) are at increased risk for low birth weight, preterm delivery, or both. We sought to assess whether the alteration of the peri-implantation maternal environment resulting from ovarian stimulation may contribute to increased risk of low birth weight in IVF births., Methods: The Society for Assisted Reproductive Technologies database was used to identify IVF-conceived neonates born in the United States between 2004 and 2006. Associations were assessed in neonates born after fresh compared with frozen and thawed embryo transfer in women of similar ovarian responsiveness, in paired analysis of neonates born to the same woman after both types of embryo transfer, and in neonates born after oocyte donation., Results: Of 56,792 neonates identified, 38,626 and 18,166 were conceived after transfer of fresh and frozen embryos, respectively. In singletons, there was no difference in preterm delivery. However, the odds of overall low birth weight (10% compared with 7.2%; adjusted odds ratio [OR] 1.35; 95% confidence interval [CI] 1.20-1.51), low birth weight at term (2.5% compared with 1.2%, adjusted OR 1.73, 95% CI 1.31-2.29), and preterm low birth weight (34.1% compared with 23.8%, adjusted OR 1.49, 95% CI 1.24-1.78) were all significantly higher after fresh embryo transfer. In singletons, after either fresh or frozen embryo transfer in the same patient, this association was even stronger (low birth weight: 11.5% compared with 5.6%, adjusted OR 4.66, 95% CI 1.18-18.38). In oocyte donor recipients who do not undergo any ovarian hormonal stimulation for either a fresh or a frozen embryo transfer, no difference in low birth weight was demonstrated (11.5% compared with 11.3% adjusted OR 0.99, 95% CI 0.82-1.18)., Conclusion: The ovarian stimulation-induced maternal environment appears to represent an independent mediator contributing to the risk of low birth weight, but not preterm delivery, in neonates conceived after IVF., Level of Evidence: II.
- Published
- 2011
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34. In vitro fertilization and adverse childhood outcomes: what we know, where we are going, and how we will get there. A glimpse into what lies behind and beckons ahead.
- Author
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Kalra SK and Barnhart KT
- Subjects
- Age of Onset, Child, Female, Fertilization in Vitro statistics & numerical data, Humans, Infant, Infant, Newborn, Pregnancy, Pregnancy Outcome epidemiology, Prenatal Exposure Delayed Effects epidemiology, Treatment Outcome, Fertilization in Vitro adverse effects, Fertilization in Vitro methods, Fertilization in Vitro trends, Prenatal Exposure Delayed Effects etiology
- Abstract
The majority of perinatal morbidity after in vitro fertilization (IVF) is due to multiple pregnancy; however, even singleton infants are at an increased risk for adverse outcomes. We have summarized data that evaluates adverse outcomes in IVF infants and recent attempts to delineate the underlying causes of this risk. We submit that practitioners of reproductive medicine should remain at the forefront of this investigation., (Copyright © 2011 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.)
- Published
- 2011
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35. Management of multiple tethering in spinal dysraphism.
- Author
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Kumar R, Garg P, Kalra SK, and Mahapatra AK
- Subjects
- Child, Preschool, Female, Humans, Infant, Male, Neural Tube Defects surgery, Spinal Dysraphism surgery, Treatment Outcome, Neural Tube Defects etiology, Neural Tube Defects pathology, Spinal Dysraphism complications, Spinal Dysraphism pathology
- Abstract
Introduction: The most challenging component of spinal dysraphism is cord tethering. Tethering can occur due to single or multiple lesions within the same patient. It is imperative to aggressively identify and release all the tethering lesions in order to provide maximum benefit to the patient. With increasing number of tethering lesions, the clinical profile and outcome show significant differences, and this difference is significantly more when more than two tethering lesions coexist in the same patient., Material and Methods: Out of the 248 patients of spinal dysraphism who underwent surgical management at Sanjay Gandhi Institute of Medical Sciences, Lucknow, India, between 1997 and 2007, 160 were included in the study. Patients were classified into two groups based on the number of tethering lesions. The first group (Group A) comprised cases of spinal dysraphism with tethering demonstrable at one or two sites. The second group (Group B) comprised patients with radiological or intraoperative evidence of multiple tethering lesions (more than two)., Results: There were 119/160 patients in Group A, while 41/160 patients were in Group B (with more than two sites of tethering). The preoperative neurological examination revealed significant differences between the two study groups. The clinical profile and the surgical outcomes have shown significant differences in the two study groups. These differences are statistically significant., Conclusion: We strongly believe that the mere presence or absence of tethering is not a sufficient documentation to predict its effect on the cases of spinal dysraphism. Tethering is a complex entity that needs to be further classified in terms of the number of tethering lesions, which significantly affect the pre- and postoperative status of the patients. We would like to suggest the term "Spina Bifida Multiplex" for the cases where more than two lesions are found to be responsible for tethering.
- Published
- 2010
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36. Children with obsessive-compulsive disorder: are they just "little adults"?
- Author
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Kalra SK and Swedo SE
- Subjects
- Adolescent, Adult, Basal Ganglia physiopathology, Brain physiopathology, Child, Cognitive Behavioral Therapy, Female, Humans, Male, Models, Neurological, Nerve Net physiopathology, Obsessive-Compulsive Disorder epidemiology, Obsessive-Compulsive Disorder physiopathology, United States epidemiology, Obsessive-Compulsive Disorder diagnosis, Obsessive-Compulsive Disorder therapy
- Abstract
Childhood-onset obsessive-compulsive disorder (OCD) affects 1%-2% of children and adolescents. It is characterized by recurrent obsessions and compulsions that create distress and interfere with daily life. The symptoms reported by children are similar to those seen among individuals who develop OCD in adulthood, and the two groups of patients are treated with similar symptom-relieving behavior therapies and medications. However, there are differences in sex ratios, patterns of comorbidity, and the results of neuroimaging studies that might be important. Here we review the diagnosis and treatment of childhood-onset OCD in light of pediatric and adult studies. We also discuss current knowledge of the pathophysiology of the disorder. Despite advances in this area, further research is needed to understand better the etiopathogenesis of the disorder and to develop new, more effective therapeutic options.
- Published
- 2009
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37. Primary midbrain germinoma.
- Author
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Kalra SK, Vaid VK, Jaiswal AK, Behari S, Jain VK, and Kumari N
- Subjects
- Child, Humans, Magnetic Resonance Imaging, Male, Ventriculoperitoneal Shunt, Brain Stem Neoplasms complications, Brain Stem Neoplasms diagnosis, Brain Stem Neoplasms therapy, Germinoma complications, Germinoma diagnosis, Germinoma therapy
- Abstract
An 11-year-old boy presented with a 4-month history of progressive holocranial headache, intermittent vomiting and visual blurring. Later, he began walking unsteadily, with progressive bilateral visual and hearing loss. He had had two episodes of abnormal tonic posturing the day prior to admission. On examination, the patient was drowsy and did not respond to commands. Imaging showed an enhancing midbrain mass with an exophytic component with hydrocephalus. Emergency ventriculoperitoneal shunt was performed, following which there was neurological improvement. Later he underwent a midline suboccipital craniectomy with vermian splitting and decompression of the exophytic component of the tumor from the midbrain. Biopsy of the tumor revealed a germinoma. Post-operatively, the patient received chemotherapy followed by radiotherapy. Primary midbrain germinoma is an extremely rare entity and to the best of our knowledge only two cases to date have been reported in the literature.
- Published
- 2008
- Full Text
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38. The association of in vitro fertilization and perinatal morbidity.
- Author
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Kalra SK and Molinaro TA
- Subjects
- Chromosome Aberrations statistics & numerical data, Congenital Abnormalities epidemiology, Congenital Abnormalities etiology, Female, Humans, Infant, Newborn, Infant, Newborn, Diseases epidemiology, Infant, Newborn, Diseases etiology, Morbidity, Neoplasms etiology, Obstetric Labor Complications epidemiology, Obstetric Labor Complications etiology, Pregnancy, Pregnancy Outcome, Pregnancy, Multiple physiology, Risk Factors, Fertilization in Vitro adverse effects, Fetal Diseases epidemiology, Fetal Diseases etiology
- Abstract
In recent years, there has been increasing concern regarding the safety of in vitro fertilization (IVF) because of the potential health impact on these infants. Multiple pregnancy contributes the vast majority of morbidity associated with IVF and, initially, many thought that adverse outcomes after IVF were solely attributable to the high incidence of twin pregnancies. More recently, multiple studies have suggested that IVF singleton pregnancies may be at increased risk for preterm birth, low birth weight, congenital anomalies, perinatal mortality, and several other pregnancy-related complications compared with unassisted singleton pregnancies. We have focused this review on the increased risk of adverse outcomes in IVF singleton conceptions compared with that of unassisted conceptions. The available evidence evaluating the association between IVF and low birth weight, preterm delivery, placental abruption, preeclampsia, congenital anomalies, and perinatal mortality in singleton pregnancies is summarized. In addition, data reporting an increased risk of congenital and chromosomal anomalies after IVF are presented.
- Published
- 2008
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39. Symptomatic fibroids in two patients on hormone replacement therapy with primary ovarian failure secondary to prepubertal gonadotoxic cancer treatment.
- Author
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Kalra SK, Gracia CR, and Barnhart KT
- Subjects
- Adult, Antineoplastic Agents, Hormonal therapeutic use, Diagnosis, Differential, Estrogens, Conjugated (USP) therapeutic use, Female, Hormone Replacement Therapy adverse effects, Humans, Leiomyoma complications, Leiomyoma therapy, Medroxyprogesterone therapeutic use, Myometrium surgery, Ovary surgery, Primary Ovarian Insufficiency drug therapy, Uterine Neoplasms surgery, Uterine Neoplasms therapy, Leiomyoma surgery, Menorrhagia etiology, Myometrium radiation effects, Ovary radiation effects, Primary Ovarian Insufficiency complications, Whole-Body Irradiation adverse effects
- Abstract
Background: We report two childhood cancer patients with primary ovarian failure who underwent exogenous hormone-induced puberty and had symptomatic fibroids while on hormone replacement therapy (HRT)., Cases: A 26-year-old woman with a history of myelodysplastic syndrome complained of irregular, heavy menstrual bleeding and painful menses; physical examination revealed a 5 cm x 3.5 cm prolapsing fibroid. A 23-year-old woman with a history of acute lymphocytic leukemia complained of irregular and heavy menstrual bleeding; physical examination revealed a 5.5 cm prolapsing fibroid., Conclusions: Patients with primary ovarian failure who are on HRT are capable of developing symptomatic fibroids despite lack of endogenously induced puberty. Diagnosis may be delayed if symptomatic uterine fibroids are not included in the differential diagnosis of abnormal uterine bleeding and pain.
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- 2008
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40. Chiari I malformation: surgical experience over a decade of management.
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Kumar R, Kalra SK, Vaid VK, and Mahapatra AK
- Subjects
- Adolescent, Adult, Arnold-Chiari Malformation diagnosis, Child, Child, Preschool, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Treatment Outcome, Arnold-Chiari Malformation surgery, Cranial Fossa, Posterior surgery, Decompression, Surgical, Intracranial Pressure physiology
- Abstract
Chiari malformations are a pathological continuum of hindbrain maldevelopment and Chiari I malformation (CMI) represents caudal decent of cerebellar tonsils. The surgery aims to relieve tonsillar compression with restoration of the normal cerebrospinal (CSF) flow dynamics. We report the salient features of our surgical experience with CMI; over a decade of management of 87 patients. Most (57) presented with pain and weakness was predominant motor complaint (n = 34). The associated bony anomalies were seen in 25 patients. For clinical grading and outcome analysis, modified Klekamp and Samii scoring system was used. The majority of patients were in poor grades (n = 43); 79 patients improved following surgical intervention at a mean follow-up of 34.21 + 21.53 months. The bony decompression and establishment of CSF flow dynamics are needed, and posterior fossa decompression in symptomatic patients offers success in the majority of patients with minimal complications.
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- 2008
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41. Pediatric brain stem lesions: introduction of a scoring system for clinical evaluation and their treatment analysis.
- Author
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Kumar R and Kalra SK
- Subjects
- Age Factors, Brain Injuries etiology, Brain Neoplasms complications, Child, Child, Preschool, Decompression methods, Female, Glioma complications, Humans, Karnofsky Performance Status, Male, Outcome and Process Assessment, Health Care, Retrospective Studies, Brain Injuries pathology, Brain Injuries therapy, Brain Stem pathology, Neurosurgery methods, Pediatrics
- Abstract
Introduction: Brainstem lesions in pediatric age group include mainly gliomas. As these are not usually amenable to complete surgical resection, multimodality treatments are used. To assess treatment responses, Karnofsky's Performance Score (KPS) has been the gold standard; however, in pediatric patients, comprehensive neurological examination is more valuable., Objective: Our purpose was to formulate neurological examination based scoring system and compare its effectiveness with KPS., Materials and Methods: A retrospective analysis of 37 pediatric patients with brainstem lesions was performed. All these patients were assessed both pre- and post-treatment and in every follow up using standard KPS and our proposed scoring system, Kumar's and Samir's Score (K&SS). K&SS was devised choosing the common clinical features and those affecting outcome the most. Twenty-two features were hence selected, and points were allotted to each according to their functional importance, with range from 22 to 100., Results and Discussion: Twenty-seven had gliomas, and in nonglioma group, seven had brainstem tuberculosis (BSTB). Nineteen patients with BSG were less than 6 years of age. Most gliomas were pilocytic astrocytomas (n = 21). Outcome analysis of patients in both groups using KPS showed deterioration or no change in the scores in majority whereas using K&SS, most patients showed improvement., Conclusion: Gliomas form majority of pediatric brainstem lesions, with high occurrence of BSTB in nongliomatous group. Our proposed scoring system, based on comprehensive neurological examination, is more sensitive than KPS in treatment analysis of brainstem lesions.
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- 2008
- Full Text
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42. Lord Ganesha: the idol neurosurgeon.
- Author
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Kumar R, Kalra SK, and Mahapatra AK
- Subjects
- Hinduism, Neurosurgery methods, Symbolism
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- 2008
- Full Text
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43. Craniovertebral junction anomaly with atlas assimilation and reducible atlantoaxial dislocation: a rare constellation of bony abnormalities.
- Author
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Kumar R, Kalra SK, Vaid VK, Sahu RN, and Mahapatra AK
- Subjects
- Adolescent, Atlanto-Axial Joint diagnostic imaging, Atlanto-Axial Joint surgery, Cervical Atlas, Cervical Vertebrae diagnostic imaging, Cervical Vertebrae surgery, Humans, Joint Dislocations diagnostic imaging, Joint Dislocations surgery, Male, Musculoskeletal Abnormalities diagnosis, Musculoskeletal Abnormalities diagnostic imaging, Musculoskeletal Abnormalities surgery, Radiography, Skull diagnostic imaging, Skull surgery, Atlanto-Axial Joint abnormalities, Cervical Vertebrae abnormalities, Joint Dislocations diagnosis, Skull abnormalities
- Abstract
A rare case of craniovertebral junction anomaly with associated reducible C(1)-C(2) dislocation and assimilation of the atlas is reported. The patient presented with neck pain with spastic quadriparesis. A posterior stabilization utilizing a contour rod, sublaminar wire fixation and onlay bone grafts between the occiput, and C(3) and C(4) vertebrae was performed followed by symptomatic improvement., ((c) 2008 S. Karger AG, Basel.)
- Published
- 2008
- Full Text
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44. Pediatric intracranial aneurysms: an institutional experience.
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Vaid VK, Kumar R, Kalra SK, Mahapatra AK, and Jain VK
- Subjects
- Adolescent, Child, Female, Humans, Male, Intracranial Aneurysm diagnosis, Intracranial Aneurysm pathology, Intracranial Aneurysm surgery
- Abstract
Introduction: Intracranial aneurysms are extremely uncommon in the pediatric population. Their epidemiology is poorly understood, and certain features make them unique. In our study we analyzed pediatric intracranial aneurysm patients to gain an insight into the epidemiology, clinicoradiological profile and outcome., Material and Methods: Out of 36 children (< or =18 years of age; male:female ratio = 1.076:1; mean age 13.19 +/- 3.72 years, age range 5-18 years) presenting with subarachnoid hemorrhage (SAH; n = 33; 91.67%) and mass effect (n = 3; 8.33%), 27 who were positive on digital subtraction angiography and treated for intracranial aneurysms between January 1991 and February 2007 were included in this study., Results: At presentation, the majority (n = 21) of the pediatric intracranial patients showed a good grade, and 23 (85.18%) presented with SAH. Sudden severe headache (n = 19; 70.37%) and loss of consciousness (n = 14; 51.85%) were the most common symptoms, and meningeal signs (n = 18; 66.66%) most commonly elicitable. There were 7 patients with giant aneurysms and 8 patients with posterior circulation aneurysms. Internal carotid artery (ICA) bifurcations (n = 6; 18.18%) followed by middle cerebral artery (MCA) bifurcations (n = 4; 12.12%) were the most common sites. At a mean follow-up of 18.67 +/- 10.85 months (range 1-42 months), there were 21 (77.77%) patients with favorable outcome and 3 patients died., Conclusions: Intracranial aneurysms in children commonly present with SAH; there is a male predominance, and ICA bifurcations followed by MCA bifurcations are the most common sites. The incidence of posterior circulation aneurysms and giant aneurysms is higher as compared to adults. The pediatric patients present with better grades and have better overall surgical results., (2008 S. Karger AG, Basel)
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- 2008
- Full Text
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45. Association of methylenetetrahydrofolate reductase genetic polymorphisms with atlantoaxial dislocation.
- Author
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Pradhan M, Behari S, Kalra SK, Ojha P, Agarwal S, and Jain VK
- Subjects
- Adolescent, Adult, Atlanto-Axial Joint diagnostic imaging, Atlanto-Axial Joint physiopathology, Atlanto-Axial Joint surgery, Child, Child, Preschool, Female, Gene Frequency, Genetic Predisposition to Disease, Genotype, Humans, Joint Dislocations diagnostic imaging, Joint Dislocations physiopathology, Joint Dislocations surgery, Male, Middle Aged, Movement, Neck physiopathology, Prospective Studies, Spinal Fusion, Tomography, X-Ray Computed, Atlanto-Axial Joint injuries, Joint Dislocations genetics, Methylenetetrahydrofolate Reductase (NADPH2) genetics, Polymorphism, Genetic
- Abstract
Object: Genetic mechanisms of atlantoaxial dislocation (AAD) have not previously been elucidated. The authors studied association of polymorphisms in the methylenetetrahydrofolate reductase (MTHFR) gene, which encodes enzymes of the folate pathway (implicated in causation of neural tube defects [NTDs]), in patients with AAD., Methods: Molecular analysis of MTHFR polymorphisms (677C-->T, cytosine to thymine and, 1298A-->C, adenine to cytosine, substitutions) was carried out using polymerase chain reaction and restriction enzyme digestion in 75 consecutive patients with AAD and in their reducible (nine patients, 12%) and irreducible (66 patients, 88%) subgroups. Controls were 60 age- and sex-matched patients of the same ethnicity. Comparisons of genotype and allele frequencies were performed using a chi-square test (with significance at p < 0.05)., Results: The CT genotype frequency of MTHFR 677C-->T polymorphism was significantly increased in the full group of patients with AAD (odds ratio [OR] 3.00, 95% confidence interval [CI] 1.28-7.14, p = 0.005) as well as in the irreducible subgroup (OR 2.81, 95% CI 1.17-6.86, p = 0.01). The frequency of T alleles was also higher in the AAD group (25.3%) than in controls (15%). The comparison of the combined frequency of CT and TT genotypes with the frequency of the CC genotype again showed significant association in AAD (OR 2.63, 95% CI 1.98-5.90, p = 0.009) and the irreducible (OR 2.5, 95% CI 1.1-5.74, p = 0.016) subgroup. There was, however, no significant association of MTHFR 1298A-->C polymorphism with AAD., Conclusions: Both MTHFR 677C-->T polymorphism and higher T allele frequency have significant associations with AAD, especially the irreducible variety. Perhaps adequate supplementation of periconceptional folic acid to circumvent effects of this missense mutation (as is done for prevention of NTDs) would reduce the incidence of AAD.
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- 2007
- Full Text
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46. A clinical scoring system for neurological assessment of high cervical myelopathy: measurements in pediatric patients with congenital atlantoaxial dislocations.
- Author
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Kumar R, Kalra SK, and Mahapatra AK
- Subjects
- Adolescent, Child, Child, Preschool, Female, Humans, Male, Nervous System Diseases etiology, Radiography, Reproducibility of Results, Sensitivity and Specificity, Severity of Illness Index, Spinal Cord Compression etiology, Atlanto-Axial Joint abnormalities, Atlanto-Axial Joint diagnostic imaging, Joint Dislocations congenital, Joint Dislocations diagnosis, Nervous System Diseases diagnosis, Neurologic Examination methods, Spinal Cord Compression diagnosis
- Abstract
Objective: The assessment of response to treatment in pediatric patients with congenital atlantoaxial dislocation (AAD) is performed using a disability grading system but may be better determined by a score based on clinical parameters. This study proposes a scoring system based on a comprehensive neurological examination to assess surgical outcome in these patients., Methods: Sixty-seven patients with congenital AAD aged 14 years or younger were included and analyzed prospectively. A scoring system based on six factors (motor power, gait, sensory involvement, sphincteric involvement, spasticity, and respiratory difficulty) was designed at the beginning of the study and all patients were assessed using this score as well as the Di Lorenzo's grade preoperatively, postoperatively, and at the time of each follow-up visit., Results: There was a very high incidence of occipitalized arch of atlas and fusion of the second and third cervical vertebrae in the irreducible variety. Most patients were classified in poor grades preoperatively; however, the changes in score were seen more often when using the scoring system we developed compared with the Di Lorenzo's grade. Our score also corroborated better with the clinical improvement., Conclusion: The clinical profiles of pediatric patients with AAD are similar with a higher incidence of atlas arch anomalies in patients with irreducible AAD. A scoring system based on clinical parameters is proposed for clinical evaluation of such patients. This system is easy to use and interpret and is more sensitive to the changes in the neurological status of patients.
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- 2007
- Full Text
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47. Occipitocervical contoured rod stabilization: does it still have a role amidst the modern stabilization techniques?
- Author
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Kalra SK, Jain VK, Jaiswal AK, and Behari S
- Subjects
- Adolescent, Adult, Aged, Child, Child, Preschool, Female, Humans, Joint Dislocations surgery, Magnetic Resonance Imaging, Male, Middle Aged, Reoperation, Spinal Fusion, Tomography, X-Ray Computed, Treatment Outcome, Young Adult, Atlanto-Axial Joint injuries, Atlanto-Axial Joint surgery, Bone Nails trends, Orthopedic Procedures trends
- Abstract
Background: The occipitocervical contoured rod (CR) stabilization for use in craniovertebral junction (CVJ) pathologies is an effective and economical technique of posterior fusion (PF)., Aims: The various indications for CR in CVJ pathologies are discussed., Settings and Design: Retrospective analysis., Materials and Methods: Fifty-four patients (mean age: 31.02+/-13.44 years; male: female ratio=5.75:1) who underwent CR stabilization are included. The majority had congenital atlantoaxial dislocation (AAD; n=50); two had CVJ tuberculosis; one each had rheumatoid arthritis and C2-3 listhesis, respectively. The indications for CR fusion in congenital AAD were associated Chiari 1 malformation (C1M) (n=29); occipitalized C1 arch and/or malformed or deficient C1 or C2 posterior elements (n=9); hypermobile AAD (n=2); and, rotatory AAD (n=3). Contoured rod as a revision procedure was also performed in seven patients. Most patients were in poor grade (18 in Grade III [partial dependence for daily needs] and 15 in Grade IV [total dependence]); 15 patients were in Grade II [independent except for minor deficits] and six in Grade I [no weakness except hyperreflexia or neck pain]., Results: Twenty-four patients improved, 18 stabilized and six deteriorated at a mean follow-up (FU) of 17.78+/-19.75 (2-84) months. Six patients were lost to FU. In 37 patients with a FU of at least three months, stability and bony union could be assessed. Thirty-one of them achieved a bony fusion/stable construct., Conclusions: Contoured rod is especially useful for PF in cases of congenital AAD with coexisting CIM, cervical scoliosis, sub-axial instability and/or asymmetrical facet joints. In acquired pathologies with three-column instability, inclusion of joints one level above the affected one by using CR, especially enhances stability.
- Published
- 2007
- Full Text
- View/download PDF
48. Hemangiopericytoma of thoracic spine: a rare bony tumor.
- Author
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Kumar R, Vaid VK, Kumar V, and Kalra SK
- Subjects
- Adolescent, Antigens, CD34 metabolism, Female, Hemangiopericytoma surgery, Humans, Immunohistochemistry, Magnetic Resonance Imaging, Neurosurgical Procedures, Paresis etiology, Spinal Cord Compression etiology, Spinal Neoplasms surgery, Vimentin metabolism, Hemangiopericytoma pathology, Spinal Neoplasms pathology
- Abstract
Case Report: We report the case of a 16-year-old girl who developed hemangiopericytoma of the thoracic spine; the main clinical symptoms were of spastic paraparesis with sensory involvement and uro-fecal incontinence. She was initially put on antitubercular treatment keeping in mind the endemicity of tuberculosis in the region. When she deteriorated on conservative management, she was operated upon, and the histopathological report was suggestive of hemangiopericytoma., Materials and Methods: Additional immunocytochemistry was performed in the paraffin-embedded tumor sections., Conclusions: An extremely rare case of primary epidural malignant hemangiopericytoma of the thoracic spinal column is described. It is a rare tumor, which is locally aggressive, and a potentially malignant tumor. The tumor is more commonly found in the cranium, and spinal involvement is rare, and only few case reports could be retrieved from the literature. We discuss the clinical profile, management, and outcome of spinal hemangiopericytomas along with pertinent review of the literature.
- Published
- 2007
- Full Text
- View/download PDF
49. Verification bias?
- Author
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Kalra SK, Seeber B, Srinivas S, and Barnhart K
- Subjects
- Bias, Female, Humans, Predictive Value of Tests, Sensitivity and Specificity, Serologic Tests, Chlamydia isolation & purification, Fallopian Tube Diseases diagnosis, Infertility, Female diagnosis
- Published
- 2007
- Full Text
- View/download PDF
50. Tubercular atlantoaxial dislocation in children: an institutional experience.
- Author
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Kalra SK, Kumar R, and Mahapatra AK
- Subjects
- Adolescent, Antitubercular Agents therapeutic use, Child, Child, Preschool, Cohort Studies, Female, Humans, Joint Dislocations diagnosis, Male, Retrospective Studies, Spinal Fusion, Treatment Outcome, Tuberculosis, Spinal complications, Atlanto-Axial Joint, Cervical Vertebrae, Joint Dislocations microbiology, Joint Dislocations surgery, Tuberculosis, Spinal diagnosis, Tuberculosis, Spinal therapy
- Abstract
Object: In this paper the authors analyzed the clinical and imaging-documented profile of pediatric patients with tubercular atlantoaxial dislocation (AAD)., Methods: Seventeen children 16 years of age or younger with tubercular AAD were included in the study. Patients with reducible AAD underwent direct posterior stabilization. All patients were treated with a four-drug antituberculosis therapy (ATT) regimen (10-20 mg/kg/day rifampicin, 10-20 mg/kg/day isoniazid, and 15 mg/kg/day ethambutol in a single daily dose; and pyrazinamide 20-35 mg/kg/day in two divided doses) for 3 months. The pyrazinamide was then discontinued after 3 months and the ethambutol after 1 year. The rifampicin and isoniazid were continued for 18 months., Results: Most of the patients had irreducible AAD. There was a high incidence of long tract signs, and the restriction of neck movements, as well as neck pain, was also very common. There was a significant delay in seeking neurosurgical consultation. Most patients were assigned poor preoperative grades, but they experienced excellent improvement postoperatively., Conclusions: The presence of tubercular AAD in children can have subtle manifestations leading to delayed diagnosis. The successful management of tubercular AAD can be achieved after determining the extent of the disease process and the underlying instability. The goal of surgery is tissue diagnosis and relief of neural compression and stabilization. Medical treatment with ATT is an integral part of the treatment protocol.
- Published
- 2007
- Full Text
- View/download PDF
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