【摘要】：目的分析感音神經(jīng)性聽力損失患者耳蝸死區(qū)(cochlear dead regions,CDR)檢測結(jié)果。方法應用均衡噪聲閾值TEN(HL)法檢測273例302耳感音神經(jīng)性聽力損失患者的耳蝸死區(qū),并分析耳蝸死區(qū)與其可能病因及聽力曲線類型的關系。結(jié)果 273例(302耳)感音神經(jīng)性聽力損失患者中,112例117耳存在耳蝸死區(qū),占總耳數(shù)的38.74%;存在耳蝸死區(qū)的患者在耳蝸死區(qū)頻率處DPOAE均未引出,其中高頻聽力下降型占40.22%(74/184),低頻下降型占47.14%(33/70),兩端下降型占33.33%(2/6),平坦型占19.04%(8/42);噪聲、耳毒性藥物、突發(fā)性聾三種因素致聾者中耳蝸死區(qū)檢出率較高。結(jié)論本組感音神經(jīng)性聽力損失患者耳蝸死區(qū)檢出率約為38.74%,高頻下降型者最多,噪聲和/或耳毒性藥物致聾者更易出現(xiàn)耳蝸死區(qū)。
[Abstract]:Objective to analyze the (cochlear dead regions,CDR of cochlea in patients with sensorineural hearing loss. Methods the cochlear dead zone was detected by TEN (HL) method in 273 cases of sensorineural hearing loss. The relationship between the dead area of cochlea and its possible etiology and the type of hearing curve was analyzed. Results among 273 cases (302 ears) of sensorineural hearing loss, 112 cases (117 ears) had dead zone of cochlea, accounting for 38.74% of the total ears, and none of the patients with cochlear dead zone had DPOAE at the frequency of cochlear death zone. High frequency hearing loss accounted for 40.22% (74 / 184), low frequency type 47.14% (33 / 70), both ends descending type 33.33% (2 / 6), flat type 19.04% (8 / 42), noise, ototoxic drugs and sudden deafness. Conclusion the detection rate of cochlear dead zone in the patients with sensorineural hearing loss is about 38.74, and the most frequent type of deafness is the high-frequency descending type, and the deafness caused by noise and / or ototoxic drugs is more likely to appear in the dead zone of cochlea.
【作者單位】： 廣東廣州市中山大學附屬第六醫(yī)院耳鼻喉-頭頸外科;
【分類號】：R764.4

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