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偏头痛是一种颅内外血管收缩与舒张功能异常性疾病。其发病机理迄今不明,目前认为发作前期先有血小板聚集,释放出5——羟色胺、血栓烷A_2和前列腺素,血中去甲肾上腺素升高,导致颅内动脉收缩,出现偏头痛症状;继而由于脑内缺血缺氧,产生大量活性物质,引起颅外动脉扩张,引起搏动性头痛。近年来随着血管活性药物的问世,给偏头痛病人带来了福音,将简介如下。1.二甲麦角新碱:本药为麦角碱衍生物,具有强大的
Migraine is an intracranial and extravascular vasoconstriction and diastolic dysfunction disease. Its pathogenesis is unknown so far. It is thought that platelets accumulate in the first episode of seizure and release 5-HT, thromboxane A_2 and prostaglandin, and norepinephrine in the blood is elevated, resulting in intracranial arterial contractions and migraine symptoms. As the brain ischemia and hypoxia, resulting in a large number of active substances, causing extracranial artery dilatation, causing pulsating headache. In recent years, with the advent of vasoactive drugs, migraine patients have brought the gospel, will be briefed as follows. 1. Methamphetamine: This medicine is ergot derivatives, with a strong