慢性中耳炎继发胆脂瘤已因抗生素的问世而明显减少,但迷路瘘管仍为胆脂瘤性中耳炎最常见的并发症。其发生率由3.6%(Palva,1971)至11%(Wayoff,1979)不等。对于此类瘘管,Nylen(1923)推荐用除去胆脂瘤基质开放瘘管法治疗,而当时人们认为迷路瘘管覆盖有胆脂瘤基质时不能用手术去除。廿世纪50和60年代用开放鼓室成形处理胆脂瘤,有些人除去基质后以皮肤、粘膜、筋膜、静脉或骨覆盖瘘管,但大多数人视为绝对禁忌。封闭性鼓室成形中如何处理瘘 Secondary cholesteatoma secondary to chronic otitis media has been significantly reduced due to the advent of antibiotics, but lost fistula is still the most common complication of cholesteatoma otitis media. The incidence ranged from 3.6% (Palva, 1971) to 11% (Wayoff, 1979). For such fistulas, Nylen (1923) recommended treatment of open fistula with removal of the cholesteatoma matrix, when it was thought that the labyrinth fistula was not surgically removed when covered with a cholesteatoma matrix. Cholesteatoma was treated with open tympanoplasty in the 1950s and 1960s. Some people covered the skin, mucosa, fascia, veins or bone after removing the stroma, but most were considered as absolute contraindications. How to deal with fistula in closed tympanoplasty