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患者,男性,48岁。因阵发性心前区闷压样疼痛半月余而就诊。疼痛每次发作时持续5～10分钟,不放散,口服硝酸甘油可缓解症状。既往无类似病史。体检:唇无紫绀,肺部正常,心界无扩大,心率76/min,律齐。血象、血沉、酶学检查正常。胸部x线片及超声心动图均未发现异常。心电图示:窦性心律,P-R间期0.08秒,Q-T间期0.42秒,P-J间期0.28秒,各导联QRS初始0.04秒均可见δ波,
Patient, male, 48 years old. Due to paroxysmal nausea and paroxysmal pain like more than half a month and treatment. The pain lasts for 5 to 10 minutes for each attack, does not disperse, oral nitroglycerin can relieve the symptoms. No previous history of similar. Physical examination: No cyanosis of the lips, normal lungs, heart no expansion, heart rate 76 / min, law Qi. Blood, ESR, enzymatic examination was normal. Chest x-ray and echocardiography were found no abnormalities. Electrocardiogram: sinus rhythm, P-R interval of 0.08 seconds, Q-T interval of 0.42 seconds, P-J interval of 0.28 seconds, each lead QRS initial 0.04 seconds are visible δ wave,