例1男，70岁。因突发眩晕，恶心呕吐入院。既往有高血压、心肌梗塞史。入院查体：神清语明，神经系统检查无异常。脑CT平扫（－），血流变学示高粘滞血症。诊断：推基底动脉供血不足。经治疗后好转。住院第7天，再发眩晕，伴视物模糊，自言自语。查体；嗜题，瞳孔直径：右2．sm Example 1 male, 70 years old. Due to sudden dizziness, nausea and vomiting admitted to hospital. Past history of hypertension, myocardial infarction. Admission examination: God clear statement, no abnormal neurological examination. CT scan (-), hemorheology hyperviscosity hyperlipidemia. Diagnosis: Push the basilar artery insufficiency. After treatment improved. On the 7th day of hospitalization, he developed dizziness, with blurred vision and self-talk. Physical examination; addiction, pupil diameter: right 2. sm