Diagnostic accuracy and the observation option in acute otitis media: the Capital Region Otitis Project

Objective: Studies of acute otitis media indicate that deferring antibiotics in selected patients is a valid option. This study sought to determine the effects of a multifaceted educational. intervention on disease management and treatment attitudes in practitioners caring for acute otitis media (AOM). Methods: An expert committee composed of clinical and public health practitioners was convened which reviewed current evidence-based literature on diagnosis and treatment of AOM. A survey instrument to measure attitudes was fashioned and administered to 150 invited practitioners before and after a daylong educational intervention. The intervention was composed of two diagnostic otoscopy workshops; a lecture on an antibiotic-centered approach to treatment, followed by a lecture on the Dutch "observation without antibiotic option" (OWAO), which in 1998 involved withholding antibiotic prescription for selected patients over the age of 2 for up to 72 h; and a concluding "Mitter Interactive Process" - small group sessions on five key clinical management questions. Results: Significant short-term changes occurred in practitioners' attitudes in importance of ear putting as a diagnostic symptom (P = 0.034) and clinical findings in the tympanic membrane for the diagnosis of AOM (P = 0.006). Significant changes towards increased comfort of practitioners' management attitudes were found in managing selected patients without antibiotics (P = 0.057), using shortened courses of antibiotics (P = 0.001), and using high dose amoxicillin (80 mg/kg/day) as a second line drug (P = 0.001). Conclusions: Practitioners' attitudes about managing AOM can be modified in the short-term with an educational intervention combining didactic, hands-on, and interactive learning that incorporates evidence-based medicine. (C) 2004 Elsevier Ireland Ltd. All rights reserved.