患者男,33岁,1987年6月3日劳累及雨淋后,于右侧卧位或坐起时出现头痛、头晕。头晕为视物摆动自觉不稳感。伴恶心、呕吐(为喷射样)。无耳堵、耳鸣及耳聋。被迫取左侧卧位或平卧位。既往无类似发作,有“肾炎”史。患者自6月15日起曾先后在内科、中医科、神经内科检查:眼底(-),颅神经(-),未发现病理反射,脑超声检查无移位。于入院前一天在内科急症就诊,并请神经内科会诊,诊 Male, 33 years old, June 3, 1987 After exertion and rain, in the right lateral position or sitting up, headache, dizziness. Dizziness as the visual swing instability. With nausea, vomiting (for jet-like). No earplugs, tinnitus and deafness. Forced to take the left lateral position or supine position. No previous similar attacks, a “nephritis” history. Patients since June 15 has been in medicine, Chinese medicine, neurology examination: Fundus (-), cranial nerve (-), no pathological reflex, brain ultrasound no shift. One day prior to admission, he was referred for medical emergency and requested neurology consultation and consultation