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VOLUME 23 , ISSUE 11 ( November, 2019 ) > List of Articles

Original Article

Steady-state Pharmacokinetics of Vancomycin in Children Admitted to Pediatric Intensive Care Unit of a Tertiary Referral Center

Nitin B Mali, Milind S Tullu, Poorwa P Wandalkar, Siddharth P Deshpande, Vinod C Ingale, Nithya J Gogtay, Urmila M Thatte

Keywords : Gram-positive bacterial infection, Liquid chromatography mass spectrometry, Pediatric intensive care unit, Pharmacokinetics–pharmacodynamics, Vancomycin

Citation Information : Mali NB, Tullu MS, Wandalkar PP, Deshpande SP, Ingale VC, Gogtay NJ, Thatte UM. Steady-state Pharmacokinetics of Vancomycin in Children Admitted to Pediatric Intensive Care Unit of a Tertiary Referral Center. Indian J Crit Care Med 2019; 23 (11):497-502.

DOI: 10.5005/jp-journals-10071-23275

License: CC BY-NC 4.0

Published Online: 01-11-2019

Copyright Statement:  Copyright © 2019; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aims and objectives: Vancomycin is a drug of choice for various gram-positive bacterial (GPB) infections and is largely prescribed to pediatric intensive care unit (PICU) patients. Despite the different pathophysiology of these patients, limited data are available on pharmacokinetics of vancomycin. There are lack of data for critically ill Indian children; hence, study was conducted to assess the steady-state pharmacokinetics in children admitted to PICU. Materials and methods: Twelve subjects (seven males, five females) aged 1–12 years were enrolled. Vancomycin (dose of 20 mg/kg per 8 hours) was infused for over 1 hour and steady-state pharmacokinetics was performed on day 3. Vancomycin concentrations were measured by the validated liquid chromatography mass spectrometry method. Pharmacokinetic parameters were calculated using Winnonlin (Version 6.3; Pharsight, St. Louis, MO). Results: The steady-state mean Cssmax was 40.94 μg/mL (±15.07), and mean AUC0–8 hours was 124.15 μg/mL (±51.27). The mean t1/2 was 4.82 hours (±2.71), Vd was 12.48 L (±4.43), and Cl was 2.08 mL/minute (±0.89). The mean AUC0–24 among 12 subjects was 372.44 μg/mL (±153.82). Among 35 measured trough concentrations, 23 (65.71%) were below, 11 (31.43%) were within, and 1 (2.86%) was above the recommended range. Conclusion: The pharmacokinetic parameters of vancomycin were comparable with previously reported studies. However, recommended trough levels (10–20 μg/mL) were not achievable with current recommended dosing of 60 mg/kg/day.


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