作者将关于外淋巴治疗的调查表寄给美国耳科学会和美国神经耳科学会的324名会员。从寄回的167份调查表中获得如下信息。①平均每人每年行耳手术197次(包括鼓膜切开术),平均行外淋巴瘘探查术4.6次;②手术的主要指征有气压伤(61%),创伤(52%),眩晕(19%),突然听力下降(17%),22%被调查者依全面的临床表现和实验室检查决定手术与否;③关于决定手术所依据的试验问题的选择结果如下:临床判断(59%)、眼震电图瘘管试验(57%)、鼓气耳镜瘘管试验(50%)、姿势图瘘管试验(9%)。其它(包括甘油试验、耳蜗电图等)(12%);④对于无外伤史的突发性耳聋不行手术,对无法解释的渐进性耳聋儿童和颞骨异常病例行手术,84%同意, The authors sent a questionnaire about perilymph treatment to the 324 members of the American Academy of Orthopedics and the American Academy of Neurological Sciences. The following information was obtained from the 167 questionnaires sent back. ① The average number of ear surgery per patient per year 197 times (including tympanotomy), the average pericardial lymphatic fistula exploration 4.6 times; ② The main indications for surgery were barotrauma (61%), trauma (52%), dizziness 19%), a sudden hearing loss (17%), 22% of respondents decided on the basis of comprehensive clinical manifestations and laboratory tests to determine the operation or not; ③ The decision on the basis for determining the choice of surgery based on the results are as follows: Clinical judgments (59% ), Electronystagogallurgical fistula test (57%), endotracheal tube fistula test (50%), postural fistula test (9%). Other (including glycerol test, electrocochleogram, etc.) (12%); ④ For patients with sudden deafness without a history of traumatic injury, surgery was performed on unexplained children with progressive deafness and abnormalities of the temporal bone. 84%