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患者男性,35岁。因突然晕倒,失语10分钟入院。有发作性头晕、眼花、心悸两年。多于夜间、情绪波动、劳累时加重。曾经阿托品、踏车运动试验及食管心房调搏检查,诊断为病窦。体检:心率53次/min,律齐,未闻杂音。X线胸片及二维超声心动图未见异常。心电图:窦性心动过缓(窦缓)。动态心电图:窦缓、偶发房早。凌晨4时心率40多次/min。下午可达120次/min。食管心房调搏检查:窦房传导时间(SACT)0.19s。窦房结恢复时间(SNRT),调搏频率90次/min时为2.76s,
Male patient, 35 years old. Suddenly fainted, aphasia admitted for 10 minutes. There are episodes of dizziness, vertigo, palpitations two years. More than at night, mood swings, exacerbated when tired. Have atropine, treadmill exercise test and esophageal atrial pacing test, diagnosis of sick sinus. Physical examination: heart rate 53 beats / min, law Qi, no unheard noise. X-ray and two-dimensional echocardiography no abnormalities. Electrocardiogram: sinus bradycardia (sinus slow). Holter: sinus slow, sporadic room early. 4:00 heart rate more than 40 times / min. Up to 120 times / min in the afternoon. Esophageal atrial pacing examination: sinoatrial conduction time (SACT) 0.19s. Sinus node recovery time (SNRT), pacing frequency of 90 beats / min to 2.76s,