患者女性，３４岁，农民以“反复发作晕厥２年”入院，患者自１９９９年　初开始　无明显诱因早晨空腹时发生晕厥，持续３０　ｍｉｎ～１　ｈ后自行缓解，以后发作渐频繁，严重时　伴性格急躁，精神错乱，冷汗和意识模糊，被家人送至精神病院，就诊期间症状发作，镇静　药无效? Female patient, 34 years old, was admitted to hospital with “repeated episodes of syncope for 2 years.” The patient had no obvious inducement since the beginning of 1999. Fetal syncope occurred in the morning fasting and continued to relieve after 30 min to 1 h. The onset later became more frequent and severe Impatience, confusion, cold sweat and confusion, was sent to the mental hospital by his family, the onset of symptoms during treatment, sedatives invalid?