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患者,男,66岁。因冠心病、完全性房室传导阻滞(CAVB)并晕厥于1986年5月植入永久性右室心内膜起搏器。此后晕厥停止发作。随诊时查起搏器功能正常,体检无特殊。心电图示右室起搏心律(80次/分)伴逆向 P(P’)波,R—P’0.32秒(Ⅰ~0逆向阻滞),以V_1导联较清楚(附图A行)。此P~1波在食道导联心电图更为明确(附图B行)。以胸壁刺激法临时抑制起搏器后为窦性心律(79次/分)、
Patient, male, 66 years old. Due to coronary heart disease, complete atrioventricular block (CAVB) and syncope in May 1986 implantation of permanent right ventricular endocardial pacemaker. After syncope stopped seizures. Check the pacemaker function is normal, no special physical examination. ECG right ventricular pacing rhythm (80 beats / min) with reverse P (P ’) wave, R-P’0.32 seconds (Ⅰ ~ 0 reverse block) to lead V_1 more clearly (line A). This P ~ 1 wave in the esophageal lead ECG more clearly (line B). To chest wall stimulation temporary inhibition of pacemaker after sinus rhythm (79 beats / min)