中耳炎手术中迷路瘘管的再讨论

Labyrinthine Fistula Reviewed During Chronic Ear Surgery

文中对1990～1997年耳科住院手术病例中51例迷路瘘管进行了讨论,迷路瘘管的位置除一例合并后半规管瘘管外,其余病例均为外半规管瘘,而且瘘管大小和术前骨导听力无明显关系.其中有34例是胆脂瘘.所有病例中除一例胆脂瘤上皮残留术后骨导听力有下降外,其余都保持了术前的骨导听力.

Fifty-one cases of labyrinthine fistula had been reviewed in 1990-1997 during chronic ear surgery. All cases had a lateral semicircular canal fistula and one case had an additional posterior semicircula canal fistula. There was no relationship between the size of labyrinthine fistula and preoperative bone conduction. 34 cases had chronic otitis media with cholesteatoma,the matrix of the cholesteatoma was completely removed in all patients except one case. Preoperative bone conducton hearing was preserved after removal of cholesteatoma matrix in all cases except the one case.