만성중이염 또는 진주종성 중이염의 조기 술 후 창상감염의 연관인자

Background: Early postoperative surgical site infection after otologic surgeries for chronic otitis media (COM) and cholesteatomatous otitis media (CholeOM) increases the cost of medical care, such as additional antibiotics use and longer hospitalization period. Sometimes, this condition causes additional surgery or operation failure depending on the progression. Authors investigated factors associated with postoperative infection and conducted studies to improve understanding of postoperative infection. Methods: 370 patients (mean age : 47.97) who underwent surgery for COM or CholeOM from January 2014 to June 2016 at tertiary referral center were analyzed retrospective chart review. Definition of early postoperative infection was based on surgical site infection within 10 days after surgery. Results: Nineteen patients showed early postoperative surgical site infection (mean age : 50.11 year ; 5.13%), and most common pathogen from infected site was Pseudomonas aeruginosa. Postoperative infection group revealed statistically significant longer admission duration (15.3 day vs. 7.8 day) and higher rate of preoperative antibiotic use (47.4% vs. 25.1%). Patients with smoking history, head and neck radiotherapy history, longer operation duration showed increased risk of postoperative infection, but this was not statistically significant. Conclusions: Early postoperative infections were more prevalent in cases with requiring preoperative antibiotics. This suggests that postoperative infections are associated with preoperative infection or condition of the middle ear, and are not related to the surgical procedure or surgeon factor. (J Clinical Otolaryngol 2017;28:185–191)