Palva T, Ramsay H
Department of Otolaryngology, University of Helsinki, Finland.
Arch Otolaryngol Head Neck Surg. 1989 Jul;115(7):804-6. doi: 10.1001/archotol.1989.01860310042019.
This cholesteatoma series comprises 84 ears, 81 of which had a labyrinthine fistula and 3 a horizontal semicircular canal opening that arose as a surgical complication. In 49 ears (58.3%), the operation was a primary one; in 35 ears (41.7%), it was a revision. Of all ears, 21 (25%) were deaf preoperatively. The fistula was located in the horizontal canal in 76 ears (90.4%). The matrix was removed in all these ears, and the fistula was covered with fibrin glue and fascia or periosteum. Hearing was preserved in all 57 ears in which matrix removal was carried out as the planned last stage. These included three ears in which the membranous canal was cut deliberately. Surgery that was performed against established rules caused deafness in three ears. Accidental opening of the horizontal canal caused no sensorineural loss in two ears as the fistulas were sealed immediately, while one ear in which the opening was not immediately recognized became deaf.
该胆脂瘤系列包括84只耳，其中81只存在迷路瘘管，3只出现作为手术并发症的水平半规管开口。49只耳（58.3%）接受的是初次手术；35只耳（41.7%）接受的是翻修手术。所有耳中，21只（25%）术前已失聪。瘘管位于水平半规管的有76只耳（90.4%）。所有这些耳均清除了胆脂瘤基质，瘘管用纤维蛋白胶和筋膜或骨膜覆盖。在按计划作为最后阶段进行基质清除的所有57只耳中听力均得以保留。其中包括3只故意切断膜性半规管的耳。违反既定规则进行的手术导致3只耳失聪。水平半规管意外开放，2只耳因瘘管立即封闭未出现感音神经性听力损失，而1只未立即发现开口的耳失聪。
