1临床资料患者女,56岁,因突发性左耳鸣2周于2004年4月16日急诊入院。自觉不伴听力下降,无视物旋转,无头昏、头痛、恶心及呕吐,无视力改变,无同侧面部麻木感,无面瘫,无饮水呛咳、吞咽困难及声嘶。曾自行在外院行高压氧舱治疗2天无明显效果。体格检查:血压150/90mmHg,肢体活动自 1 Clinical data Female patient, 56 years old, due to sudden left tinnitus 2 weeks in April 16, 2004 emergency admission. Consciously without hearing loss, ignoring the object rotation, no dizziness, headache, nausea and vomiting, no change in eyesight, no ipsilateral facial numbness, no facial paralysis, no water cough, dysphagia and hoarseness. Have their own hospital outside the hyperbaric chamber for 2 days no significant effect. Physical examination: blood pressure 150 / 90mmHg, limb activity since