15 results on '"Kathryn R. Matthias"'
Search Results
2. Knowledge, attitude, and practices associated with the diagnosis and management of skin and soft-tissue infections among medical students, residents, and attending physicians
- Author
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Norman Beatty, Jessica Anthony August, Joe Saenz, David E Nix, Kathryn R Matthias, and Mayar Al Mohajer
- Subjects
assessment ,cellulitis ,education ,guidelines ,survey ,Medicine - Abstract
Skin and soft-tissue infections (SSTIs) are commonly encountered by medical students, residents, and trainees. The Infectious Diseases Society of America (IDSA) has updated its recommendations regarding SSTI diagnosis and management in June 2014. We assessed knowledge, attitude, and practices toward diagnosis and management of SSTIs using an online survey. We disseminated the survey to medical students, residents, and attending physicians practicing in family and internal medicine department at a university-based hospital. A total of 103 surveys were completed out of 121 sent (85.1%) between July 2015 and March 2016. There were nine medical questions in the survey. The mean of correct answers was 4.5/9 ± 2.0. Medical knowledge correlated with the level of education (P < 0.001) but not with subspecialty (P = 0.97). Around 35% were familiar with the updated IDSA guidelines pertaining to SSTIs. The majority (85%) responded that the hospital staff would benefit from additional training and 75% agreed that more antibiotic stewardship education is needed. Our study shows that there are significant opportunities for development among students and physicians who encounter SSTIs.
- Published
- 2018
- Full Text
- View/download PDF
3. Vancomycin dosing in patients with obesity
- Author
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Brian L, Erstad, Kathryn R, Matthias, and David E, Nix
- Subjects
Pharmacology ,Vancomycin ,Health Policy ,Humans ,Obesity ,Drug Monitoring ,Anti-Bacterial Agents - Published
- 2022
- Full Text
- View/download PDF
4. Role of posaconazole in the treatment of oropharyngeal candidiasis
- Author
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Voichita Ianas, Kathryn R Matthias, and Stephen A Klotz
- Subjects
Infectious and parasitic diseases ,RC109-216 - Abstract
Voichita Ianas1, Kathryn R Matthias2, Stephen A Klotz11Section of Infectious Diseases and Department of Medicine, 2School of Pharmacy, University of Arizona, Tucson, Arizona, USAAbstract: Posaconazole is the newest azole antifungal approved by the US Food and Drug Administration, and possesses a broad spectrum of activity against numerous yeasts and filamentous fungi. It is available as an oral suspension and is generally well tolerated by patients, but gastrointestinal absorption is sometimes inadequate and remains a clinical concern in treating deep-seated infections. It is used routinely and effectively for the prophylaxis of invasive fungal infections in immunosuppressed hosts and is an effective treatment of oropharyngeal candidiasis, including azole-resistant disease.Keywords: posaconazole, azole, yeasts, filamentous fungi
- Published
- 2010
5. Overprescription of antibiotics in patients with community-acquired pneumonia in the intensive care unit
- Author
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Jose Marquez, Rafael Urcis, Mayar Al Mohajer, Rorak Hooten, Kady Goldlist, David E. Nix, Matthew Adams, and Kathryn R. Matthias
- Subjects
medicine.medical_specialty ,medicine.drug_class ,Antibiotics ,Population ,outcomes ,overuse ,law.invention ,Community-acquired pneumonia ,law ,respiratory infection ,medicine ,In patient ,Intensive care medicine ,education ,education.field_of_study ,business.industry ,Antimicrobials ,Brief Report ,Respiratory infection ,medicine.disease ,Intensive care unit ,Pneumonia ,incentive care unit ,Pseudomonal pneumonia ,Medicine ,business - Abstract
Purpose: We aimed to assess factors associated with therapy failure in patients with community-acquired pneumonia in the intensive care unit (ICU). Methods: Electronic charts of patients with International Classification of Diseases, Ninth Revision, codes of pneumonia who were admitted to the ICU at a tertiary academic medical center in Southern Arizona were reviewed. Results: Antipseudomonal coverage and anti-methicillin-resistant Staphylococcus aureus (MRSA) coverage were often prescribed (58.4% and 54.1%, respectively). Antipseudomonal coverage was rarely necessary as pseudomonal pneumonia was found in only one case (0.9%). Antipseudomonal and anti-MRSA coverage was not associated with improved outcomes. Conclusion: Overprescription of antibiotics in this population remains a significant problem. More work is needed to further limit unnecessary antibiotic use.
- Published
- 2019
6. Does Everything That’s Counted Count? Value of Inflammatory Markers for Following Therapy and Predicting Outcome in Diabetic Foot Infection
- Author
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Nicholas A. Giovinco, Summer Gardner, David G. Armstrong, Eric Ong, Kathryn R. Matthias, Michelle Salloum, Mayar Al Mohajer, David E. Nix, and Sumaya Farran
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Male ,medicine.medical_specialty ,Neutrophils ,medicine.drug_class ,Antibiotics ,030209 endocrinology & metabolism ,Inflammation ,Blood Sedimentation ,Gastroenterology ,Leukocyte Count ,03 medical and health sciences ,0302 clinical medicine ,Diabetes mellitus ,Internal medicine ,Humans ,Medicine ,Lymphocytes ,030212 general & internal medicine ,Neutrophil to lymphocyte ratio ,Retrospective Studies ,medicine.diagnostic_test ,business.industry ,Osteomyelitis ,Reproducibility of Results ,Retrospective cohort study ,General Medicine ,Middle Aged ,Prognosis ,medicine.disease ,Diabetic foot ,Diabetic Foot ,Erythrocyte sedimentation rate ,Immunology ,Wound Infection ,Female ,Surgery ,medicine.symptom ,business ,Biomarkers - Abstract
To assess the severity of inflammation associated with diabetic foot infection (DFI), values of inflammatory markers such as white blood count (WBC), C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), and neutrophil to lymphocyte ratio (NLR) are often measured and tracked over time. It remains unclear if these markers can aid the clinician in the diagnosis and management of DFI, and ensure more rational use of antibiotics. Hospitalized adult patients (n = 379) with DFI were retrospectively assessed for abnormal inflammatory markers, correlation between values of inflammatory markers, and clinical diagnosis on initial admission and on last follow-up. At admission, WBC, ESR and NLR were each elevated in patients with osteomyelitis and only ESR was significantly elevated in patients with soft tissue infection only. Only WBC was significantly elevated in patients with osteomyelitis compared with uninfected diabetic feet on last follow-up. Considering the predictive performance of these inflammatory markers, they demonstrated excellent positive predictive value at admission, and excellent negative predictive value at the last follow-up visit. Moreover, the number of elevated markers was further associated with probability of infection both at admission and last follow-up.
- Published
- 2017
- Full Text
- View/download PDF
7. Influenza vaccine availability at urgent care centers in the state of Arizona
- Author
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Kyle McKeown, Norman Beatty, Kelly Hager, Kathryn R. Matthias, Mayar Al Mohajer, Francisco Mora, and David E. Nix
- Subjects
Male ,medicine.medical_specialty ,Adolescent ,Epidemiology ,Influenza vaccine ,Cross-sectional study ,MEDLINE ,Influenza season ,Ambulatory Care Facilities ,03 medical and health sciences ,0302 clinical medicine ,030225 pediatrics ,Environmental health ,Influenza, Human ,Humans ,Medicine ,030212 general & internal medicine ,Child ,business.industry ,Health Policy ,Public health ,Arizona ,Public Health, Environmental and Occupational Health ,Infant ,virus diseases ,Vaccination ,Cross-Sectional Studies ,Infectious Diseases ,Influenza Vaccines ,Child, Preschool ,Female ,business - Abstract
We surveyed urgent care centers (UCCs) in the state of Arizona to determine whether they offered the influenza vaccine during the 2016-2017 influenza season. Overall vaccine availability was 80.3% at these facilities. During this season, one-third of the UCCs offered influenza vaccination to children 6 months or older; approximately two-thirds offered influenza vaccination to children and young adults 16 years or older. This is the first study of influenza vaccine availability at UCCs.
- Published
- 2018
- Full Text
- View/download PDF
8. Knowledge, attitude, and practices associated with the diagnosis and management of skin and soft-tissue infections among medical students, residents, and attending physicians
- Author
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Joe Anthony Saenz, Mayar Al Mohajer, Kathryn R. Matthias, Norman Beatty, Jessica August, and David E. Nix
- Subjects
0301 basic medicine ,medicine.medical_specialty ,Medical knowledge ,education ,business.industry ,Brief Report ,030106 microbiology ,Assessment ,Subspecialty ,03 medical and health sciences ,0302 clinical medicine ,Family medicine ,medicine ,Antibiotic Stewardship ,Medicine ,survey ,030212 general & internal medicine ,guidelines ,cellulitis ,business - Abstract
Skin and soft-tissue infections (SSTIs) are commonly encountered by medical students, residents, and trainees. The Infectious Diseases Society of America (IDSA) has updated its recommendations regarding SSTI diagnosis and management in June 2014. We assessed knowledge, attitude, and practices toward diagnosis and management of SSTIs using an online survey. We disseminated the survey to medical students, residents, and attending physicians practicing in family and internal medicine department at a university-based hospital. A total of 103 surveys were completed out of 121 sent (85.1%) between July 2015 and March 2016. There were nine medical questions in the survey. The mean of correct answers was 4.5/9 ± 2.0. Medical knowledge correlated with the level of education (P < 0.001) but not with subspecialty (P = 0.97). Around 35% were familiar with the updated IDSA guidelines pertaining to SSTIs. The majority (85%) responded that the hospital staff would benefit from additional training and 75% agreed that more antibiotic stewardship education is needed. Our study shows that there are significant opportunities for development among students and physicians who encounter SSTIs.
- Published
- 2018
9. Improving the knowledge of students and physicians regarding appropriate use of antibiotics for respiratory infections through an online educational module
- Author
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Kathryn R. Matthias, Mayar Al Mohajer, and David E. Nix
- Subjects
0301 basic medicine ,Students, Medical ,Epidemiology ,030106 microbiology ,Appropriate use ,03 medical and health sciences ,0302 clinical medicine ,Community-acquired pneumonia ,Nursing ,Physicians ,Humans ,Medicine ,Prospective Studies ,030212 general & internal medicine ,Respiratory Tract Infections ,Students medical ,Medical education ,Education, Medical ,Respiratory tract infections ,business.industry ,Health Policy ,Public Health, Environmental and Occupational Health ,medicine.disease ,Drug Utilization ,Anti-Bacterial Agents ,Infectious Diseases ,Students, Pharmacy ,business - Abstract
We developed an interactive online module to improve the knowledge of students and physicians regarding respiratory infections. Our study showed that the completion of this module was associated with substantial improvement in knowledge, with modest retention after 2 months.
- Published
- 2017
- Full Text
- View/download PDF
10. Point-of-care testing for infectious diseases: Opportunities, barriers, and considerations in community pharmacy
- Author
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Michael E. Klepser, Kimberly K. Scarsi, Stephanie A. Klepser, Paul O. Gubbins, Kathryn R. Matthias, Allison M. Dering-Anderson, Kristin M. Darin, and Karri A. Bauer
- Subjects
medicine.medical_specialty ,Point-of-Care Systems ,Point-of-care testing ,Pharmacist ,MEDLINE ,Pharmacology (nursing) ,Pharmacy ,Community Pharmacy Services ,Pharmacists ,Communicable Diseases ,Statute ,Professional Role ,Humans ,Mass Screening ,Medicine ,Pharmacology ,Diagnostic Tests, Routine ,business.industry ,Waiver ,United States ,Education, Pharmacy ,Family medicine ,Pharmaconomist ,Pharmacy practice ,business - Abstract
OBJECTIVES To identify opportunities to perform point-of-care (POC) testing and/or screening for infectious diseases in community pharmacies, provide an overview of such tests and how they are used in current practice, discuss how the Clinical Laboratory Improvement Amendments of 1988 (CLIA) affect pharmacists performing POC testing, and identify and discuss barriers and provide recommendations for those wanting to establish POC testing for infectious diseases services in community pharmacies. DATA SOURCES PubMed and Google Scholar were searched from November 2012 through May 2013 and encompassed the years 2000 and beyond for the narrative review section of this article using the search terms rapid diagnostic tests, POC testing and infectious diseases, pharmacy services, CLIA waiver, and collaborative drug therapy management. All state boards of pharmacy in the United States were contacted and their regulatory and legislative websites accessed in 2012 and January 2013 to review relevant pharmacy practice laws. DATA SYNTHESIS POC testing for infectious diseases represents a significant opportunity to expand services in community pharmacies. Pharmacist education and training are addressing knowledge deficits in good laboratory practices and test performance and interpretation. Federal regulations do not define the qualifications for those who perform CLIA-waived tests, yet few pharmacists perform such services. Fewer than 20% of states address POC testing in their statutes and regulations governing pharmacy. CONCLUSION POC testing for infectious diseases could benefit patients and society and represents an opportunity to expand pharmacy services in community pharmacies. Existing barriers to the implementation of such services in community pharmacies, including deficits in pharmacist training and education along with state regulatory and legislative variance and vagueness in statutes governing pharmacy, are not insurmountable.
- Published
- 2014
- Full Text
- View/download PDF
11. Role of posaconazole in the treatment of oropharyngeal candidiasis
- Author
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Stephen A. Klotz, Voichita Ianas, and Kathryn R. Matthias
- Subjects
Posaconazole ,medicine.medical_specialty ,yeasts ,Disease ,Review ,Pharmacology ,Oropharyngeal Candidiasis ,lcsh:Infectious and parasitic diseases ,Food and drug administration ,medicine ,Effective treatment ,azole ,Pharmacology (medical) ,lcsh:RC109-216 ,Azole antifungal ,chemistry.chemical_classification ,business.industry ,filamentous fungi ,Immunosuppressed Hosts ,Dermatology ,posaconazole ,Infectious Diseases ,chemistry ,Azole ,business ,medicine.drug - Abstract
Voichita Ianas1, Kathryn R Matthias2, Stephen A Klotz11Section of Infectious Diseases and Department of Medicine, 2School of Pharmacy, University of Arizona, Tucson, Arizona, USAAbstract: Posaconazole is the newest azole antifungal approved by the US Food and Drug Administration, and possesses a broad spectrum of activity against numerous yeasts and filamentous fungi. It is available as an oral suspension and is generally well tolerated by patients, but gastrointestinal absorption is sometimes inadequate and remains a clinical concern in treating deep-seated infections. It is used routinely and effectively for the prophylaxis of invasive fungal infections in immunosuppressed hosts and is an effective treatment of oropharyngeal candidiasis, including azole-resistant disease.Keywords: posaconazole, azole, yeasts, filamentous fungi
- Published
- 2010
12. Appropriateness of Ciprofloxacin Dosing Based on a Population Pharmacokinetic Model
- Author
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Kathryn R. Matthias, David E. Nix, and Alexandra Perreiter
- Subjects
Pharmacology ,medicine.medical_specialty ,education.field_of_study ,business.industry ,Population ,Area under the curve ,Pharmacy ,Ciprofloxacin ,Minimum inhibitory concentration ,Pharmacokinetics ,Internal medicine ,Pharmacodynamics ,medicine ,Pharmacology (medical) ,Dosing ,Intensive care medicine ,business ,education ,Antibacterial agent ,medicine.drug - Abstract
Purpose Over the past two decades, the minimum inhibitory concentrations (MICs) of ciprofloxacin have been steadily increasing for gram-negative bacteria. One major reason cited for this “MIC creep” is underdosing of ciprofloxacin due to a lack of understanding of its pharmacodynamic properties. The primary objective of this study was to evaluate the frequency of underdosing of ciprofloxacin in a tertiary acute care medical center based on a population pharmacokinetic model. Secondary objectives included evaluation of appropriateness of dosing based on renal function and approved product labeling. Methods Seventy-six patients were included in this single-center, retrospective study. Data collection included demographic, laboratory, and microbiology data along with details on antibiotic administration. Patient-specific predicted 24-hour area under the curve/MIC (AUC24/MIC) values were estimated using a population pharmacokinetic model with a goal predicted AUC24/MIC of at least 100 and a preferred target value of 250. Results Only 8% of the subjects obtained a predicted AUC24/MIC higher than 250, while 34% of the subjects achieved a predicted AUC24/MIC of 100 or less. The majority of patients (79%) received a total daily intravenous-equivalent dose of 800 mg, whereas only 8% of subjects received an initial total daily intravenous-equivalent dose of 1,200 mg, which is the recommended dose for most severe infections. Overall 26% of subjects were prescribed an appropriate initial dose for their estimated renal function based on infection type and severity. Conclusion Ciprofloxacin for acute infection treatment was frequently underdosed based on US Food and Drug Administration–approved labeling and estimated predicted AUC24/MIC at a tertiary acute care medical center.
- Published
- 2010
- Full Text
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13. Determining Nurses' Satisfaction with Pharmacy Services: A Suggested Methodology and Demonstration
- Author
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Steve R. Spravzoff, JoLaine R. Draugalis, Kimberly D. Gibson, and Kathryn R. Matthias
- Subjects
Pharmacology ,medicine.medical_specialty ,business.industry ,Pharmacy ,030226 pharmacology & pharmacy ,03 medical and health sciences ,0302 clinical medicine ,Nursing ,Family medicine ,parasitic diseases ,Medicine ,Center (algebra and category theory) ,Pharmacology (medical) ,030212 general & internal medicine ,business - Abstract
Purpose The level of nurses' satisfaction regarding pharmacy services provided at a rural medical center was evaluated and compared to data collected in a previous study at the same institution. Information obtained was used to determine potential areas for pharmacy service improvements. Methods This project employed a survey research design that acquired demographic and descriptive data. The updated survey contained 43 items including 34 scaled, seven demographic, and two open-ended items. Aspects assessed by this instrument included accessibility of pharmacists, accuracy of medication delivery, quality of drug information services, and perceptions of pharmacists' value by nursing staff. All inpatient nurse practitioners, licensed practical nurses, and registered nurses who were employed at the Medical Center in the winter of 2004 were eligible to participate in this study. The a priori level of significance for all analyses was two-tailed at 0.05. Results A total of 199 surveys were returned for a response rate of 43.9%. The overall level of nurses' satisfaction with pharmacy services at the Medical Center had not significantly changed between the years of 2000 and 2004; however, satisfaction with several specific aspects of pharmaceutical services changed over time. Increased levels of satisfaction were related to medication accuracy and inpatient pharmacy hours; decreased levels of satisfaction were reported for medication availability in automated medication dispensing machines and pharmacy telephone services. The level of nurses' satisfaction with pharmacy services was increased in relation to the communication between pharmacists and nurses and decreased in relation to technology associated pharmacy services. Conclusion The data gleaned from the survey were evaluated in order to make recommendations to the Medical Center's Director of Pharmacy. An instrument was developed and validated to discern nurses' level of satisfaction with pharmacy services. This methodology may also be used at other institutions.
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- 2006
- Full Text
- View/download PDF
14. Liquidambar styraciflua: a renewable source of shikimic acid
- Author
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Ashley Mohadjer, Kathryn R. Matthias, M. Scott Newman, Liza B. Enrich, Margaret L. Scheuermann, Chrystal F. Eller, Michael Fujinaka, and Thomas Poon
- Subjects
biology ,Chemistry ,business.industry ,Organic Chemistry ,Liquidambar styraciflua ,Extraction (chemistry) ,Shikimic acid ,biology.organism_classification ,Biochemistry ,Renewable energy ,chemistry.chemical_compound ,Horticulture ,Drug Discovery ,Aromatic amino acids ,business - Abstract
An isolation procedure is presented that yields 2.4–3.7% w/w pure shikimic acid from the seeds of Liquidambar styraciflua (Sweetgum). Shikimic acid, the starting material in the commercial synthesis of the antiviral agent oseltamivir and an important intermediate in the biosynthesis of aromatic amino acids in plants, was found by HPLC to be abundant in the granular, aborted seeds (6.5% w/w) while present only in small amounts in the developed, fertile seeds (0.14% w/w). This extraction technique makes L. styraciflua , which is found in 40 states of the continental US, a potential renewable source of this important natural product.
- Published
- 2008
- Full Text
- View/download PDF
15. Should tigecycline be considered for urinary tract infections? A pharmacokinetic re-evaluation
- Author
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David E. Nix and Kathryn R. Matthias
- Subjects
Pharmacology ,Microbiology (medical) ,medicine.medical_specialty ,business.industry ,Urinary system ,MEDLINE ,Enterobacteriaceae Infections ,Minocycline ,Tigecycline ,Drug resistance ,Anti-Bacterial Agents ,Multiple drug resistance ,Infectious Diseases ,Pharmacokinetics ,Drug Resistance, Multiple, Bacterial ,Urinary Tract Infections ,medicine ,Humans ,Pharmacology (medical) ,Intensive care medicine ,business ,medicine.drug ,Acinetobacter Infections - Published
- 2010
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