title: Comparison of bacterial organisms and their susceptibility patterns from otic exudate and ear tissue from the vertical ear canal of dogs undergoing a total ear canal ablation.
abstract: The purpose of this prospective study was to compare bacterial organisms and their susceptibility patterns from otic exudate and ear tissue from the vertical ear canal of six dogs with end-stage otitis undergoing a total ear canal ablation. Twenty-six organisms, 13 from the exudate and 13 from the tissue, were morphologically and biochemically similar, and their susceptibility patterns were compared. There were discrepancies for only 5 antibiotics for 4 organisms from 3 dogs. Culture of otic exudate from the vertical ear canal of dogs with chronic end-stage otitis externa provides an accurate reflection of the bacterial species present and the antimicrobial susceptibility patterns of these infections.
authors.affiliation: Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA.
authors.forename: Lynette K
authors.initials: LK
authors.lastname: Cole
authors.forename: Kenneth W
authors.initials: KW
authors.lastname: Kwochka
authors.forename: Andrew
authors.initials: A
authors.lastname: Hillier
authors.forename: Joseph J
authors.initials: JJ
authors.lastname: Kowalski
authors.forename: Daniel D
authors.initials: DD
authors.lastname: Smeak
mesh_terms: D000284:Administration, Oral; D000287:Administration, Topical; D000818:Animals; D000900:Anti-Bacterial Agents / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D017115:Catheter Ablation / Q000662:veterinary; D004283:Dog Diseases / Q000188:drug therapy / Q000382:microbiology* / Q000601:surgery; D004285:Dogs; D024881:Drug Resistance, Bacterial; D005122:Exudates and Transudates / Q000382:microbiology; D006090:Gram-Negative Bacteria / Q000187:drug effects* / Q000302:isolation & purification; D006094:Gram-Positive Bacteria / Q000187:drug effects* / Q000302:isolation & purification; D008826:Microbial Sensitivity Tests; D010032:Otitis Externa / Q000382:microbiology / Q000662:veterinary*; D011446:Prospective Studies
chemical_list: D000900:Anti-Bacterial Agents