Antibiotic dosing for acute otitis media in children: a weighty issue

Sarah Christian-Kopp1, Madhumita Sinha, David I Rosenberg

  • 1Department of Emergency Medicine, Arizona Children's Center at Maricopa Medical Center, Maricopa Integrated Health Systems, Phoenix, AZ 85008, USA.

Pediatric Emergency Care
|January 1, 2010
PubMed

Insights

Pediatricians often underdose amoxicillin for children with otitis media, especially those who are older or heavier. Experts had varied opinions on maximum amoxicillin dosing, indicating a need for clearer guidelines.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Pharmacology

Background:

  • The American Academy of Pediatrics (AAP) 2004 guidelines recommend high-dose amoxicillin (80-90 mg/kg/day) for acute otitis media (OM).
  • Rising childhood obesity rates mean recommended doses can exceed standard adult limits (1500 mg/day).

Purpose of the Study:

  • To investigate primary care physician prescribing patterns for amoxicillin in treating OM.
  • To gauge the perspectives of AAP subcommittee members involved in OM guideline development.

Main Methods:

  • A two-part study: Part 1 involved a retrospective review of medical records for children diagnosed with OM and prescribed amoxicillin.
  • Part 2 consisted of a web-based survey distributed to 14 members of the OM guidelines subcommittee.

Main Results:

  • Children weighing 20 kg or less received significantly higher mean amoxicillin doses (74.2 mg/kg/day) compared to heavier children (40.4 mg/kg/day).
  • Most subcommittee members (77.8%) indicated obesity's impact on high-dose amoxicillin recommendations was not discussed during guideline formulation.
  • If a calculated dose exceeded 1500 mg/day, 66.7% of surveyed members would prescribe the adult dose, while 33.3% would adhere to the pediatric recommendation.

Conclusions:

  • Primary care physicians tend to prescribe lower amoxicillin doses than recommended for older children and those in higher weight categories.
  • There is a lack of consensus among guideline subcommittee members regarding the specification of a maximum amoxicillin dose.
Abstract

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