[Microsurgery of large middle ear abnormalities. Technical surgical considerations].
From 1988 to 1994, 75 patients with congenital aural atresias were operated on at the University ENT Department, Würzburg. Sixty-two patients (70 ears) could be followed up in their postoperative outcomes. The surgical approach used in all patients was a direct one through the atresia plate. To avoid infection and stenosis of the new meatus, a neo-tympanic membrane was built up in a far lateral position. This was possible by using a long ossicular prosthesis. The mean postoperative gain was 17.8 dB and the mean postoperative airbone gap was 31.0 dB. Twenty-two percent of the ears had postoperative infections or stenosis of the ear canal. Thirty-four percent of the ears had to undergo revision surgery. Jahrsdoerfer's grading system for congenital aural atresia showed good correlation in 64% of the ears when comparing preoperative status and postoperative outcome.
Schwager
K
K
Universitäts-HNO-Klinik Würzburg.
Helms
J
J
D000293:Adolescent; D000328:Adult; D001301:Audiometry, Pure-Tone; D001309:Auditory Threshold / Q000502:physiology; D002648:Child; D004432:Ear, Middle / Q000002:abnormalities* / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006314:Hearing Loss, Conductive / Q000151:congenital* / Q000601:surgery; D006801:Humans; D008297:Male; D008866:Microsurgery / Q000379:methods*; D009998:Ossicular Prosthesis; D011183:Postoperative Complications / Q000209:etiology / Q000601:surgery; D012086:Reoperation; D014433:Tympanoplasty / Q000379:methods*
Mikrochirurgie grosser Mittelohrfehlbildungen. Operationstechnische Uberlegungen.