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High Single-dose Vancomycin Loading Is Not Associated With Increased Nephrotoxicity in Emergency Department Sepsis
Jamie M Rosini1, Joshua J Davis2, Jeffrey Muenzer2
1Department of Pharmacy, Christiana Care Health System, Newark, DE.
Summary
High-dose vancomycin loading doses (>20 mg/kg) did not increase nephrotoxicity risk in sepsis patients. This study supports using recommended weight-based vancomycin dosing for improved outcomes.
Area of Science:
- Pharmacology
- Nephrology
- Critical Care Medicine
Background:
- Vancomycin loading doses are recommended for sepsis treatment.
- The safety profile, specifically nephrotoxicity risk, of higher vancomycin doses remains unclear.
Purpose of the Study:
- To compare the incidence of nephrotoxicity in emergency department (ED) sepsis patients receiving high-dose (>20 mg/kg) versus lower-dose (≤20 mg/kg) vancomycin.
- To evaluate the association between initial vancomycin dosing strategy and the development of kidney injury.
Main Methods:
- Retrospective cohort study in three academic EDs.
- Included adult patients admitted after vancomycin administration for sepsis.
- Excluded patients with missing weight, on hemodialysis, or inadequate serum creatinine data.
Main Results:
- A total of 1,330 patients with adequate data were analyzed.
- High-dose vancomycin was associated with a significantly lower rate of nephrotoxicity (5.8% vs. 11.1%).
- Adjusted analysis showed a decreased risk of nephrotoxicity with high-dose vancomycin (relative risk = 0.60; 95% CI = 0.44 to 0.82).
Conclusions:
- Initial vancomycin dosing > 20 mg/kg was not associated with increased nephrotoxicity.
- Findings support adherence to recommended initial weight-based vancomycin loading doses for sepsis patients.
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