患者女,54岁,以反复发作性晕厥10余年于2000年3月16日收住院。患者于10年前无明显诱因出现晕厥,伴有大汗、心慌及口唇麻木,以清晨空腹和劳累后多发作,进糖类食物后缓解。发作周期逐渐缩短,近来每周发作1次,每日多次进食,体重明显增加而浑身乏力。在我院内分泌科就诊,诊断为胰岛 The female patient, 54 years old, was hospitalized on March 16, 2000 with more than 10 years of recurrent syncope. The patient had no obvious cause of syncope 10 years ago, accompanied by profuse sweat, palpitation, and numbness in the lips. He suffered multiple episodes of fasting and tiredness in the morning, and eased after entering sugary foods. The seizure cycle is gradually shortened, with recent episodes occurring once a week, multiple daily meals, an apparent increase in body weight and fatigue. In our endocrinology department, diagnosed as islet