title: Bacteriology of chronic otitis media.
abstract: Tympanocentesis was performed in 50 patients with chronic otitis media; pus was cultured aerobically and anaerobically. Only aerobes were isolated from 21 patients (42%), three patients had only anaerobes (Peptococcus sp), and 25 patients (50%) had both aerobes and anaerobes. Only one specimen had no growth. There were 68 aerobic isolates. Pseudomonas aeruginosa was recovered in 36 patients (72%); other aerobes commonly recovered included Proteus sp and Staphylococcus aureus. There were 48 anaerobes isolated. Anaerobic Gram-positive cocci were isolated in 24 instances (21 Peptococcus sp and three Peptostreptococcus sp). Sixteen Bacteroides sp were recovered, including seven B fragilis group and six B melaninogenicus.
mesh_terms: D000328:Adult; D000332:Aerobiosis; D000693:Anaerobiosis; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects / Q000302:isolation & purification*; D002675:Child, Preschool; D002908:Chronic Disease; D004352:Drug Resistance, Microbial; D006801:Humans; D010033:Otitis Media / Q000382:microbiology*; D010035:Otitis Media, Suppurative / Q000382:microbiology*
chemical_list: D000900:Anti-Bacterial Agents