患者，男，３６岁。以间断性头痛、头晕２个月，加重伴突然昏厥２ｈ，急诊以“急性后侧壁、下壁心肌梗死”（ＭＩ）入院。患者自诉近２个月来，每值劳累或情绪激动时即头晕、头痛，不伴视物旋转及恶心呕吐，头痛部位为全头痛，性质为隐痛，未予治疗。１９９８年１２月３０日早 Patient, male, 36 years old. With intermittent headache, dizziness 2 months, aggravated with sudden syncope 2h, emergency to “acute posterior wall, inferior wall myocardial infarction” (MI) admission. Patient self-prosecution in the past 2 months, each time fatigue or emotional excitement, namely, dizziness, headache, non-partner rotation and nausea and vomiting, headache site for the whole headache, the nature of the pain, without treatment. December 30, 1998 morning