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題 名 | 小腦橋腦角腫瘤的聽力學表現=Audiologic Findings in the Cerebello-Pontine Angle Tumors |
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作 者 | 許權振; 林凱南; | 書刊名 | 中華民國耳鼻喉科醫學會雜誌 |
卷 期 | 33:3 1998.06[民87.06] |
頁 次 | 頁44-50 |
分類號 | 416.812 |
關鍵詞 | 聽神經瘤; 小腦橋腦角腫瘤; 腦幹聽性反應; 聽反射; 聽力圖; Acoustic neuroma; Cerebellopontine angle tumor; Auditory brainstem response; Acoustic reflex; Audiogram; |
語 文 | 中文(Chinese) |
中文摘要 | 背景:臨床症狀以自覺聽力損失、耳鳴或耳閉塞感和眩暈或不平衡感為主訴的病 患,有可能患有小腦橋腦角腫瘤,探討此種病例的各種聽力檢查結果及特性是本研究的目的 。 方法:研究對象是經手術和病理證實的小腦橋腦角腫瘤 34 例,其中聽神經瘤 26 例,腦膜 瘤 6 例,迷走神經瘤 2 例。比較聽神經瘤和其他腫瘤的純音聽力圖、聽反射闔值檢查和腦 幹聽性反應檢查結果,並分析討論。 結果:聽神經瘤病人平均年齡 47.1 歲,其他腫瘤病人平均年齡 58.3 歲。聽神經瘤組腫瘤 大小 2.5 cm 以上者占 42%,其他腫瘤組腫瘤大小 2.5 cm 以上者占 88%。聽神經瘤組 70% 以上 1K、2K、4K、8K Hz 的兩耳闔值相差 10dB 以上, 而其他腫瘤組 70% 以上 4K、8K Hz 的兩耳闔值相差 10dB 以上。 聽神經瘤組和其他小腦橋腦角腫瘤組的腦幹聽性反應異常 率都 100%。聽反射異常率聽神經瘤組 78%,其他腫瘤組 100%。出現其他腦神經瘤狀者,聽 神經瘤病人 8 例,其他腫瘤病人 2 例。 結論:小腦橋腦角腫瘤的腦幹聽性反應異常率、聽反射異常率和兩耳不對稱性純音聽力闔值 出現率均非常高,但因聽神經瘤直接影響聽覺徑路,故臨床症狀較早出現,而能較早被診斷 出來。 |
英文摘要 | Background: Cerebellopontine angle tumors included acoustic neuroma, meningioma and other rate tumors. The purpose of this study was to analyze the characteristic audiological findings of these tumors. Mothod: A total of 34 cases of surgically and pathologically proved cerebellopontine angle tumors were included in this study. They were 26 cases of acoustic neuroma, 6 cases of meningioma and 2 cases of neuroma of lower cranial nerves. All cases received pure tone audiogram, acoustic reflex and ABR testing. Result: Average age of diagnosed acoustic neuromas was 47.1 years and that of other tumors was 58.3 years. Fourteen cases of acoustic neuromas (42%) and seven caseds of other tumors (88%) were large tumor (>2.5 cm). More than 70% of acoustic neuromas showed asymmetric hearing threshold of 1k, 2k, 4k and 8k Hz. More than 70% of other tumors showed asymmelric hearing threshold of 4k and 8k Hz. Abnormal rate of acoustic reflex test was 78% for acoustic neuromas and 100% for other tumors. Abnormal rate of ABR was 100% for both groups. Conclusion: Cerebelloponine angle tumors showed high rate of asymmetric high tone hearing loss, very high abnormal rate of acoustic reflex and ABR testings. Acoustic neuroma was diagnosed earlier than other cerebellopontine angle tumors because of the earlier onset of clinical symptoms. |
本系統中英文摘要資訊取自各篇刊載內容。