1 临床资料 患者,男,23岁,初教-6飞行员,飞行时间335h。因反复眩晕1个月入院。入院前1个月无明显原因出现眩晕,视物旋转,走路摇晃,伴恶心、呕吐、四肢乏力、全身大汗。无明显耳鸣及听力下降,予对症治疗后好转。此后当剧烈运动后或晨起时偶尔再次发作上述症状,故以眩晕待查收入我院。查体:体温36.6℃,脉搏78次/min,呼吸16次/min,血压 1 clinical data patients, male, 23 years old, early-6 pilots, flight time 335h. Due to repeated vertigo 1 month admission. One month before admission, there was no obvious cause of dizziness, depending on the material rotation, walking shaking, with nausea, vomiting, weakness, sweating. No significant tinnitus and hearing loss, to improve after symptomatic treatment. Since then after the strenuous exercise or morning when the recurrence of the above symptoms, it is dizziness pending investigation into our hospital. Physical examination: body temperature 36.6 ℃, pulse 78 beats / min, breathing 16 times / min, blood pressure