病历摘要患者男,47岁。因发作性头晕、意识不清2年余,渐进性加重伴视物模糊6个月,于2002年1月10日入院。患者2年前无明显诱因出现发作性头晕、眼前发黑,发作时视物模糊,无抽搐,无视物旋转及耳鸣、耳聋。每次发作持续约10s,发作无规律,间隔数天、数十天或数月不等发作一次。患者 Patient summary Male, 47 years old. Due to the onset of dizziness, unconscious more than 2 years, progressive increase with blurred vision 6 months, January 10, 2002 admission. 2 years ago, no obvious incentive to patients with episodic dizziness, black eyes, episodes of blurred vision, no convulsions, ignoring the object rotation and tinnitus, deafness. Each attack lasted about 10s, seizures irregular, a few days apart, dozens of days or months ranging from attack. patient