Schwager K, Helms J
Universitäts-HNO-Klinik Würzburg.
HNO. 1995 Jul;43(7):427-31.
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.
1988年至1994年期间，维尔茨堡大学耳鼻喉科为75例先天性耳道闭锁患者实施了手术。其中62例患者（70耳）获得了术后随访结果。所有患者均采用经闭锁板的直接手术入路。为避免新耳道感染和狭窄，在远外侧位置构建了新鼓膜。这通过使用长听骨假体得以实现。术后平均增益为17.8dB，术后平均气骨导差为31.0dB。22%的耳朵术后发生感染或耳道狭窄。34%的耳朵需要接受翻修手术。在比较术前状态和术后结果时，Jahrsdoerfer先天性耳道闭锁分级系统在64%的耳朵中显示出良好的相关性。
