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I.緒言
遷延性意識障害の患者は,頭部外傷後,脳血管障害後など,日常の診療においてしばしば経験されるが,有効な治療法がなく,その対策に苦慮しているのが現状である.これまでに,thyrotropin-releasing hormone11),L—dopa4,6)などが試され,ある程度の効果が報告されているが,いずれも効果は不確実で,新たな治療手段が待望されているところである.
われわれは,外傷後の遷延性意識障害の2症例に,抗コリン剤である塩酸trihexyphenidyl(以下THPと略す.商品名Artane)を投与し,明かな症状の改善を見た.2症例の特徴と,臨床経過を分析し,外傷後パーキンソニズムとの関係,THPの作用機序について考察する.
Cases involving two patients who presented post-traumatic prolonged disturbance of consciousness (PTPDC), namely akinetic mutism, and recovered from it after treatment with trihexyphenidyl were reported.
Case 1: A seventy-one-year-old farmer. Five months after head injury, when he was first admitted to us, he was stable with signs of oligokinesia, katatonic posture, speechlessness, rigid muscle tones and positive cog-wheel phenomenon. One week after administration of the drug, his speech and voluntary movement improved remarkably.
Two months after the treatment, he was able to walk, and was discharged from the hospital.
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