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  • Title: Retrospective Cohort Study of the Incidence of Acute Kidney Injury with Vancomycin Area under the Curve-Based Dosing with Concomitant Piperacillin-Tazobactam Compared to Meropenem or Cefepime.
    Author: Kiley PS, Pearston AP, Hodge LA, Kaplan MC, Baczek SM, Stanley JS, Wilson TJ, Soriano KM, Yao A, Shaeffer ZA, Talt IE, Cohen JA, Ingemi AI.
    Journal: Antimicrob Agents Chemother; 2022 Aug 16; 66(8):e0004022. PubMed ID: 35867523.
    Abstract:
    Acute kidney injury (AKI) is a complication associated with vancomycin. Previous studies demonstrated that the combination of vancomycin and piperacillin-tazobactam increases the risk of AKI compared to vancomycin with meropenem or cefepime. These studies did not utilize area under the curve (AUC)-based dosing, which reduces vancomycin exposure and may decrease nephrotoxicity compared with trough-based dosing. This study evaluated the incidence of AKI in patients receiving AUC-dosed vancomycin with either concomitant piperacillin-tazobactam (VPT) or meropenem or cefepime (VMC). This retrospective cohort study included patients admitted to Sentara Norfolk General Hospital between October 2019 and September 2020 who received AUC-dosed vancomycin and concomitant piperacillin-tazobactam, meropenem, or cefepime for at least 48 h. The primary outcome was the incidence of AKI during treatment or within 24 h of discontinuation. A total of 435 patients (VPT, n = 331; VMC, n = 104) who received a median duration of 4 days of treatment were included. The incidence of AKI was significantly higher with VPT than with VMC (13.6% versus 4.8% [P = 0.014]). Multivariable analysis showed VPT to be an independent risk factor for the development of AKI (odds ratio [OR], 3.00 [95% confidence interval {CI}, 1.15 to 7.76]). VPT was associated with more frequent AKI than VMC, even with the relatively short courses of antimicrobial therapy administered in this population. In comparison with the precedent in the literature for trough-based vancomycin dosing, our results suggest that the use of AUC-based vancomycin dosing in combination with piperacillin-tazobactam, meropenem, or cefepime may result in a lower overall incidence of AKI.
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