Association of antibiotic use and acute kidney injury in patients hospitalized with community-acquired pneumonia.

Le P, Navaneethan SD, Yu PC, Pallotta AM, Rastogi R, Patel P, Brateanu A, Imrey PB, Rothberg MB. Association of antibiotic use and acute kidney injury in patients hospitalized with community-acquired pneumonia. Current Medical Research and Opinion. 2022 Mar 1; 38(3):443-450.

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Abstract:

BACKGROUND: Acute kidney injury (AKI) is common among hospitalized patients with community-acquired pneumonia (CAP). We aimed to estimate and compare the risk of AKI for various antibiotic combinations in adults hospitalized for CAP. METHODS: We conducted a retrospective cohort study of the Premier Healthcare Database containing all admissions for 660?US hospitals from 2010 to 2015. We included adults aged = 18?years hospitalized with CAP and considered 6 different antibiotic combinations based on continuous use in the first 3 hospital days. The primary outcome was incident AKI, defined by ICD-9 codes 584.5-584-9. We evaluated associations of AKI with in-hospital mortality and length-of-stay. We excluded patients who were admitted directly to the intensive care unit, had AKI codes present on admission or had dialysis in the first 2?days. We used generalized linear mixed models with the hospital as a random effect and covariate adjustment for patient demographics, comorbidities, other treatments on day 0/1, and hospital characteristics. RESULTS: The total sample included 449,535 patients, 3.15% of whom developed AKI. All other regimens but fluoroquinolones exhibited higher AKI odds than 3rd generation cephalosporin with or without macrolide. The combination of piperacillin/tazobactam and vancomycin with or without other antibiotics was associated with the highest AKI odds (OR = 1.89; 95% CI: 1.73-2.06). Patients with incident AKI had an increased odds of hospital mortality (OR = 6.37; 95% CI: 6.07-6.69) and longer length-of-stay (mean multiplier = 1.84; 95% CI: 1.82, 1.86). CONCLUSION: Compared to 3rd generation cephalosporin with or without macrolide, piperacillin/tazobactam, vancomycin, and their combination were associated with higher odds of developing AKI, which in turn were associated with worse clinical outcomes.