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頁籤選單縮合
題 名 | Electromyographic Findings of Marcus Gunn Phenomenon=Marcus Gunn現象的肌電圖表徵 |
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作 者 | 廖昌旭; 許燿東; 徐昌鴻; 林健群; 彭家勛; | 書刊名 | Journal of Medical Sciences |
卷 期 | 23:5 2003.10[民92.10] |
頁 次 | 頁307-309 |
分類號 | 415.9 |
關鍵詞 | 肌電圖; Electromyography; Marcus gunn phenomenon; Trigemino-oculomotor synkinesis; |
語 文 | 英文(English) |
英文摘要 | A case of 20-year-old man presented with complete ptosis over left eyelid, but could be retracted transiently as opening mouth. His anomaly was congenital and occurred in the absence of other neurological dysfunction. Moreover, there was no organic abnormality in the study of brain magnetic-resonance images. Electrophysiological examination with conventional Electromyography (EMG) demonstrated synkinetic movements between left levator palpebrae and external pterygoid muscle. The motor activities of left levator palpebrae lagged 44.3 milliseconds behind the external ptervgoid muscle. This electromyographic fining helped to support that the jaw-winking synkinetic movements consisted of the unilateral congenital ptotic eyelid, which was retracted upon stimulation of the ipsilateral pterygoid muscle. The unique presentation is though to be the aberrant innervations of the levator palpebrae from the motor branch of the trigeminal nerve. Therefore, the current diagnosis of Marcus Gunn phenomenon still relies on the clinical features and the findings of EMG. |
本系統中英文摘要資訊取自各篇刊載內容。