阿立哌唑致阴茎异常勃起一例

2013-08-05 佚名 中华精神科杂志

患者 男,22岁,未婚,学生。患者于2009年1月无明显诱因下渐起出现孤僻懒散,不与同学交流,不料理个人卫生,后出现自语自笑,猜疑同学害他,于2011年2月20日首次入我院住院治疗。既往体健,无重大躯体疾病史及药物过敏史,个人史及家族史均无异常。入院时体格检查和神经系统检查无阳性体征。 精神检查:意识清,定向力完整,存在言语性幻听,存在关系、被害妄想,情感平淡反应不协调,意志活动减退,生活懒散,

患者 男,22岁,未婚,学生。患者于2009年1月无明显诱因下渐起出现孤僻懒散,不与同学交流,不料理个人卫生,后出现自语自笑,猜疑同学害他,于2011年2月20日首次入我院住院治疗。既往体健,无重大躯体疾病史及药物过敏史,个人史及家族史均无异常。入院时体格检查和神经系统检查无阳性体征。

精神检查:意识清,定向力完整,存在言语性幻听,存在关系、被害妄想,情感平淡反应不协调,意志活动减退,生活懒散,孤僻,无自知力。血常规、生化、甲状腺功能、心电图、脑电图、头颅cT检查均正常。依据中国精神障碍分类与诊断标准第3版人院诊断为:精神分裂症。

2月20日给予阿立哌唑(商品名:安律凡,浙江大冢制药有限公司生产)5 mg/d口服,2月21日加至10 mg/d,2月22 日上午10:00出现阴茎持续勃起,给予局部冷敷无改善,13:00出现肉眼血尿,同时伴有疼痛,转入综合性医院泌尿科就诊,诊断为阴茎异常勃起(低流量性),经阴茎海绵体根部注射问羟胺,16:00阴茎勃起缓解,行相关检查排除血液系统疾病、代谢性疾病、肿瘤等疾病。既往无类似情况发生。后换用奥氮平治疗,未再出现持续的阴茎勃起。阴茎异常勃起是指在无性刺激的情况下,阴茎持续勃起超过4 h,不因性活动(性交或自慰)而减轻。其病因广泛,包括血液系统疾病、代谢性疾病、外伤、肿瘤、神经系统疾病、药物及昆虫咬伤等。此外,约1/2的患者病因未明。药物因素是成年人最常见的病因。多数抗精神病药均可引起阴茎异常勃起,占药源性阴茎异常勃起的15%~26%。本病例有服用抗精神病药史,临床表现为阴茎强直、坚硬、痛性勃起,诊断为低流量性阴茎异常勃起。抗精神病药所致阴茎异常勃起的确切机制并不明确,普遍认为与其阻滞α1-肾上腺素能受体有关。阿立哌唑可阻断α1受体导致阴茎海绵体血管扩张,血流流入阴茎海绵体增加,导致阴茎异常勃起,临床使用中应引起注意。

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    2013-10-19 habb
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    2013-08-07 dingxiaobo
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