Wu Ziming, Zhang Suzhen, Zhou Na, Ji Fei, Chen Aiting, Yang Weiyan, Han Dongyi
Department of Otolaryngology-Head and Neck Surgery, Chinese PLA General Hospital, Otolaryngology Institute of Chinese PLA, Beijing 100853, China.
Lin Chuang Er Bi Yan Hou Ke Za Zhi. 2006 Jan;20(1):4-5.
To investigate the diagnostic methods and significance of several tests for delayed endolymphatic hydrops (DEH).
Fifteen patients with delayed endolymphatic hydrops were tested with pure tone threshold, ECochG, bithermal caloric test and vestibular evoked myogenic potentials test to detect the lesioned side and the extent of hydrops.
All of the 15 patients had sensorineural hearing loss to the medium-severe extent at least. Ten were the ipsilateral type, four contralateral type and one bilateral type. Five cases had abnormal horizontal semicircular canal (HSCC) hydrops and saccular hydrops; six cases had abnormal HSCC function and normal saccular function; two cases had abnormal saccular function and normal HSCC function. The seven abnormal VEMP took the forms of loss of p13-n23, elongation of the latency of p13 or depressed amplitude cases with of p13-n23.
ECochG, bithermal caloric test and VEMP may play a major role in the diagnosis of delayed endolymphatic hydrops and they should be utilized as the routine tests.
探讨几种检测方法对迟发性内淋巴积水（DEH）的诊断价值及意义。
对15例迟发性内淋巴积水患者进行纯音听阈测试、耳蜗电图（ECochG）、冷热试验及前庭诱发肌源性电位（VEMP）测试，以确定患侧及积水程度。
15例患者均至少有中重度感音神经性听力损失。其中10例为同侧型，4例为对侧型，1例为双侧型。5例水平半规管（HSCC）积水及球囊积水异常；6例HSCC功能异常但球囊功能正常；2例球囊功能异常但HSCC功能正常。7例VEMP异常表现为p13 - n23缺失、p13潜伏期延长或p13 - n23波幅降低。
耳蜗电图、冷热试验及VEMP在迟发性内淋巴积水的诊断中可能起主要作用，应作为常规检查项目。
