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临床资料:女性,59岁,干部。10年前于行走时发生晕倒,急诊时测血压为85/55 mm Hg,经对症治疗后好转。以后常于行走时发生晕倒。3年前病情加重,每行走10余米远时即诱发晕倒,而以轮椅代步。每次晕倒时均无昏迷、抽搐、大小便失禁。长期按心血管疾病诊治但不能控制行走时晕倒的发生。病后患者多处求医,除晕倒时血压偏低外,心、肺、腹部、四肢检查均未见异常。先后多次拍颈椎片,作心
Clinical data: female, 59 years old, cadre. Fainting occurred 10 years ago when walking, and blood pressure was 85/55 mm Hg at the time of emergency and was improved after symptomatic treatment. After often fainted when walking. Three years ago, his condition worsened, and each time he walked more than 10 meters, he fainted. He was wheelchair-bound. Each time fainting without coma, convulsions, incontinence. Long-term diagnosis and treatment of cardiovascular disease but can not control the occurrence of fainting. Many patients seek medical treatment after illness, except when fainting low blood pressure, heart, lungs, abdomen, limb examination were no abnormalities. Has repeatedly made cervical spine, for heart