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例1 男,20岁。间断头昏心慌一年余,近2月来排尿后突然昏厥间发5次。每次发作时间约半分钟,排尿时突然心慌、头昏而跌倒,醒后感心悸、乏力。体检:体温36.5℃,血压110/70,甲状腺不肿大,无血管鸣,双肺正常。心界不大,心律齐,心率80次/分,无杂音。肝脾不大。神经系统检查无异常,实验室检查血、粪、尿常规,脑电图、脑血流图、心电图、超声心动图、胸片、血脂、肝功能、肾功能均正常。排出器质性心脏病及神经内科疾病,作食道电生理检查程控早搏刺激法以 S_2刺激法反扫步长10ms,电极深度39cm,起搏电压30V,于480ms 诱发出室上速,但可自行停止。
Example 1 male, 20 years old. Intermittent dizziness flustered more than a year, nearly 2 months after the sudden onset of fainting 5 times. Each episode of time about half a minute, suddenly urinate urinate, dizziness and falls, wake up feeling palpitations, fatigue. Physical examination: body temperature 36.5 ℃, blood pressure 110/70, thyroid enlargement, no vascular Ming, normal lungs. Heart, heart rate, heart rate 80 beats / min, no noise. Small spleen and liver. No abnormal neurological examination, laboratory tests of blood, faeces, urine, EEG, cerebral blood flow diagram, electrocardiogram, echocardiography, chest X-ray, liver function, renal function were normal. Discharge of structural heart disease and neurological diseases, esophageal electrophysiological examination of pre-stroke stimulation to S_2 stimulation anti-sweep step length of 10ms, the electrode depth of 39cm, pacing voltage 30V, 480ms induced supraventricular tachycardia, but on their own stop.