患者女性，３９岁，汉族。于１９９７年无诱因双眼视物模糊，坐位及站位时加重，数分钟后可缓解。后经常出现头晕、心慌，双上肢发冷麻木无力，双下肢活动不变，曾数次发生急转身时晕倒。体格检查：体温３６３℃，呼吸１６次／分，双侧颈、桡动脉搏动消失，双侧上肢血压... Female patient, 39 years old, Han nationality. No incentive in 1997 binocular vision blurred seat and station increased, a few minutes later can be alleviated. After frequent dizziness, palpitation, numbness in both upper extremities cold, the activities of both lower extremities unchanged, had several times when the sudden turn around fainted. Physical examination: body temperature 36  3 ℃, breathing 16 beats / min, bilateral neck, radial artery pulse disappeared, bilateral upper limb blood pressure ...