Development and Assessment of Vancomycin Dosing Utilizing AUC/MIC Protocol in Patients With End-Stage Renal Disease (ESRD) on Intermittent Hemodialysis (IHD)

Author:

Ables Mary1,Welch Ron W.1ORCID,Walley Brittany1

Affiliation:

1. Department of Pharmacy, Baptist Memorial Hospital GTR, Columbus, MS, USA

Abstract

Purpose: Vancomycin is commonly prescribed for the treatment of methicillin-resistant Staphylococcus aureus (MRSA) infections, including patients with end stage renal disease (ESRD) receiving intermittent hemodialysis (IHD). Infection is the second-leading cause of mortality in this patient population; therefore, optimizing vancomycin dosing is essential. New guidelines recommend using the ratio of area under the curve (AUC)/minimal inhibitory concentration (MIC) dosing with a target of 400-600 to maximize efficacy and minimize vancomycin nephrotoxicity. Summary: A retrospective chart review was performed to assess the current protocol for vancomycin dosing in ESRD patients on IHD at a community hospital in North Mississippi. A protocol was developed for dosing vancomycin utilizing AUC/MIC targets in this patient population. The study included all inpatient adults with ESRD receiving IHD at least 3 times weekly and receiving vancomycin. Data collection occurred in two phases. The first phase of data collection occurred before implementation of the new protocol and assessed the current vancomycin protocol effectiveness. In phase II of data collection, an assessment of the newly developed protocol utilizing similar data collected in phase I was conducted. Conclusions: It is thought that the difference in treatment outcomes and AUC/MIC targets is due to decreased immune function in this population. For this reason, we set our goal pre-dialysis level at 20-25 mg/dL, rather than 17-25 mg/dL, which correlates with an AUC/MIC of 480-600. It is important to quickly achieve therapeutic levels for the patients that do have MRSA to improve outcomes, to sustain these levels, and to reduce adverse events and costs.

Publisher

SAGE Publications

Subject

Pharmacology (medical)

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