无论是闭合性或开放性头外伤后突然出现耳蜗和前庭症状,很可能是发生了外淋巴瘘,但中耳探查未必能显示病变。此外,某些证实有外淋巴瘘的患者,尽管作了修补术而症状仍无改善,则可能是由于未发现存在于两窗以外的瘘管。作者在1984年收治的682例头外伤患者中,11例(1.4%)有突发性耳蜗和前庭症状,因拟诊为外淋巴瘘而手术,结果10例证实有瘘管:8例瘘管在圆窗或卵圆窗,或两窗都有瘘管,其中2例圆窗瘘者同时有外半规管瘘管;另2例则仅在外半规管有瘘管。以上发现瘘管的病例经修复后眩晕 Peripheral lymphatic fistulas are most likely to result from a sudden onset of cochlear and vestibular symptoms following either a closed or open head trauma but may not necessarily show lesions in the middle ear. In addition, some patients with peripartum lymphatic fistula may not have any improvement in symptoms despite revision surgery, as fistulas outside the two windows may not be found. Of the 682 patients with head trauma admitted in 1984, 11 (1.4%) had sudden cochlear and vestibular symptoms and were diagnosed as having perilymphatic fistula surgery. Results: Fistulas were confirmed in 10 of the 10 patients: 8 in the circle Window or oval window, or two windows have fistula, of which 2 cases of round fistula at the same time outside the semicircular canal fistula; the other two cases only in the outer semicircular canal fistula. Fistula found above the case of vertigo after repair