Evaluation of prophylactic antibiotic regimens on recurrence and mortality in spontaneous bacterial peritonitis |
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Affiliation: | 1. University of the Incarnate Word Feik School of Pharmacy, San Antonio, TX, USA;2. South Texas Veterans Health Care System, Audie L. Murphy Division, San Antonio, TX, USA;3. UT Health San Antonio, San Antonio, TX, USA;4. University Health System, San Antonio, TX, USA;5. CHRISTUS Santa Rosa Hospital Westover Hills, San Antonio, TX, USA |
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Abstract: | Introduction and objectivesLimited data describe current SBP epidemiology and specific secondary SBP prophylactic regimens, leading to variable prescribing practices. This work aims to compare 90-day and one-year SBP recurrence and mortality based on secondary SBP antibiotic prophylaxis regimens.Materials and methodsWe performed a retrospective cohort of patients >18 years with an SBP diagnosis from 2010 to 2015 at two academic institutions. Eligible patients had ascitic PMN counts ≥250 cells/mm3 or a positive ascitic culture. Patients were compared based on secondary SBP prophylaxis regimens (i.e., daily, intermittent, or no prophylaxis).ResultsOf 791 patients with ascitic fluid samples, 86 patients were included. Antibiotic prophylaxis included daily (n = 34), intermittent (n = 36), or no prophylaxis (n = 16). Nearly half of SBP episodes had a positive ascitic fluid culture; 50% were gram-negative pathogens, and 50% were gram-positive pathogens. Daily and intermittent regimens had similar rates of recurrence at 90-days (19.4% vs. 14.7%, p = 0.60) and one-year (33.3% vs. 26.5%, p = 0.53). Similarly, mortality did not differ among daily and intermittent regimens at 90-days (32.4% vs. 30.6%, p = 0.87) or one-year (67.6% vs. 63.9%, p = 0.74). When comparing any prophylaxis vs. no prophylaxis, there were no differences in 90-day or one-year recurrence or mortality.ConclusionsIn patients with a history of SBP, our data indicate similar outcomes with daily, intermittent, or no secondary antibiotic prophylaxis. With available data, including ours, demonstrating a changing epidemiology for SBP pathogens, further data is required to determine if traditional approaches to secondary SBP prophylaxis remain appropriate. |
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Keywords: | Cirrhosis Spontaneous bacterial peritonitis Antibiotic prophylaxis Recurrence Mortality |
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