Aerobic and anaerobic bacteriology of concurrent chronic otitis media witheffusion and chronic sinusitis in children

Objective: To correlate the aerobic and anaerobic microbiologic findings of concurrent chronic otitis media with effusion and chronic maxillary sinusi tis. Methods: Cultures were obtained from 32 children with concurrent chronic ot itis media with effusion and maxillary sinusitis who underwent tympanostomy tube placement. Results: A total of 42 isolates. 24 aerobic and 18 anaerobic, were recovere d from 30 patients; 27 were isolated from both sites, 4 from the ear only, and 11 from the sinus only. The most common isolates were Haemophilus influ enzae (9 isolates), Streptococcus pneumoniae (n = 7), Prevotella species (n = 8), and Peptostreptococcus species (n = 6), Microbiological concordance between the ear and sinus was found in 22 (69%) of culture-positive patient s. Conclusion: The concordance in recovery of organisms in more than two third s of the patients illustrates the common bacterial etiology between chronic otitis media with effusion and chronic sinusitis in children.