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患儿男,10岁。因运动后反复晕厥半年入院。半年前在一次剧烈运动后感到头晕,出汗多,旋即昏厥、意识丧失,无抽风,2分钟后自行缓解。半年内先后5次类似发作,均于跑步活动后发生。发病来患儿常感乏力、胸闷、气短。曾做颅脑CT、脑电图均正常。查体:血压12/10kpa,面色苍白,口唇轻度紫绀。心率80次/分,律齐,胸骨左缘第3～4肋间收缩期杂音2/6,P_2亢强伴分裂。双肺(-),肝脾未及。心电图示电
Children male, 10 years old. Repeated seizures after exercise due to hospital for six months. Six months ago in a strenuous exercise after feeling dizzy, sweating and more fainting, loss of consciousness, no ventilation, 2 minutes to ease themselves. Has similar attacks in 5 times within six months, all occurred after running activities. The incidence of children often feel fatigue, chest tightness, shortness of breath. Had brain CT, EEG are normal. Examination: blood pressure 12 / 10kpa, pale, lips mild cyanosis. Heart rate 80 beats / min, law Qi, sternal left margin of 3 to 4 intercostal systolic murmur 2/6, P_2 hyperthyroidism with schizophrenia. Double lung (-), liver and spleen not yet. ECG shows electricity