American journal of health-system pharmacy : AJHP : official journal of the American Society of Health-System Pharmacists · 2024
Antimicrobial resistance patterns and empiric antibiotic selections for patients admitted from post-acute care facilities.
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Vijapurapu Sandhya, Maguire Christina, Binkley Amanda, Binkley Shawn, Lamore Raymond
Аннотация
PURPOSE: To characterize the susceptibilities of positive bacterial cultures and the appropriateness of empiric antimicrobial regimens for patients admitted from post-acute care facilities (PACFs).
METHODS: This was a retrospective quality improvement study. The study included patients admitted from a PACF to one of 2 tertiary care teaching hospitals within the University of Pennsylvania Health System, located in Philadelphia, PA, from August 2020 to December 2021. Patients were included if they had at least one positive culture within 72 hours of admission.
RESULTS: A total of 167 patients and 230 isolates from the study period were evaluated. The majority of positive cultures were from a urinary source (114 of 230, 49.6%). Nineteen patients (11.4%) had a history of multidrug-resistant organisms. The most common empiric antibiotics used were vancomycin (61.7%) and cefepime (59.3%). Sixty-one patients (36.5%) received inappropriate empiric therapy based on the culture results. When comparing our hospitals' general antibiogram to that of only PACF patients, Escherichia coli and Klebsiella pneumoniae had at least a 20% difference in susceptibility to levofloxacin, ceftriaxone, and cefepime. Extended-spectrum β-lactamase resistance was also higher in the PACF cohort (odds ratio, 2.09; 95% confidence interval, 1.4-3.1).
CONCLUSION: Clinically significant differences in antimicrobial susceptibility were found among patients admitted from PACFs compared to our health system's general antibiogram. The increased resistance rates identified in this study support the need for hospitals to evaluate this at-risk patient population, which may drive changes to empiric antibiotic prescribing practices.
METHODS: This was a retrospective quality improvement study. The study included patients admitted from a PACF to one of 2 tertiary care teaching hospitals within the University of Pennsylvania Health System, located in Philadelphia, PA, from August 2020 to December 2021. Patients were included if they had at least one positive culture within 72 hours of admission.
RESULTS: A total of 167 patients and 230 isolates from the study period were evaluated. The majority of positive cultures were from a urinary source (114 of 230, 49.6%). Nineteen patients (11.4%) had a history of multidrug-resistant organisms. The most common empiric antibiotics used were vancomycin (61.7%) and cefepime (59.3%). Sixty-one patients (36.5%) received inappropriate empiric therapy based on the culture results. When comparing our hospitals' general antibiogram to that of only PACF patients, Escherichia coli and Klebsiella pneumoniae had at least a 20% difference in susceptibility to levofloxacin, ceftriaxone, and cefepime. Extended-spectrum β-lactamase resistance was also higher in the PACF cohort (odds ratio, 2.09; 95% confidence interval, 1.4-3.1).
CONCLUSION: Clinically significant differences in antimicrobial susceptibility were found among patients admitted from PACFs compared to our health system's general antibiogram. The increased resistance rates identified in this study support the need for hospitals to evaluate this at-risk patient population, which may drive changes to empiric antibiotic prescribing practices.