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患者女性,58岁,反复发作心悸、胸闷。入院当天心悸发作2h,ECG 示 PSVT,HR193次/min。静注维拉帕米后转为窦性心律,Ⅱ导联P_(4、6)为房早,P-R 间期与 P′-R 间期为0.11s(图1),怀疑L-G-L综合征。行食管心房调搏试验,S_1S_1级递增刺激,调搏频率210次/min 呈1∶1房室传导,S_1-R 间期0.15s,当调搏频率为
Female patient, 58 years old, recurrent heart palpitations, chest tightness. On the day of admission, palpitation onset 2h, ECG showed PSVT, HR193 times / min. After intravenous injection of verapamil into sinus rhythm, Ⅱ lead P_ (4,6) for the room early, P-R interval and P’-R interval was 0.11s (Figure 1), suspected L-G-L syndrome. Esophageal atrial pacing test, S_1S_1 level increased stimulation, pacing frequency of 210 beats / min was 1: 1 atrioventricular conduction, S_1-R interval 0.15s, when the pacing frequency is