鼓索神经极易在中耳手术中受损,本文旨在研究开放式鼓室成形术中切除鼓索神经,其味觉功能的变化情况。1　资料和方法1.1　临床资料1998年8月～1999年1月入院的单侧慢性中耳炎患者35例,男15例,女20例;年龄16～58(平均30)岁,病程10～48(平均26)年。均行开放式鼓室成形术,术中因清 Drum nerve is easily damaged in the middle ear surgery. The purpose of this paper is to study the changes of taste sensory function in the removal of the chord nerve by open tympanoplasty. 1 Materials and Methods 1.1 Clinical data from August 1998 to January 1999 hospitalized unilateral chronic otitis media in 35 patients, 15 males and 20 females; aged 16 to 58 (average 30) years of age, duration of 10 to 48 (mean 26) years. Both open tympanoplasty, surgery due to clear