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1984年以来,我们应用食道心房调搏测定窦房结与房室结传导功能44例,心脏负荷试验40例,旁道电生理检查与房室传导不应期测定13例,治疗快速性室上性心律失常13例,现将初步工作小结如下。仪器与方法应用 FD-1型多功能心脏程序刺激仪,将心内膜起搏电极从患者前鼻孔插入食道,观察食道心电图。选择 P 波振幅最高部位固定并与调搏器相连。起搏电压25—35V 脉宽6—10ms,以,Ⅱ导心电图观察,确定为有效起搏后开始检查。窦房结功能的测定一、受检对象:44例中男30例、女14例,年龄21—78岁,其中非病窦组32侧,病窦组12例。按常规方法测定窦房结恢复时间(SNRT)、窦房传导时间(SACT)、固有心率
Since 1984, we use the esophageal atrial pacing determination of sinoatrial node and atrioventricular node conduction function in 44 cases, 40 cases of cardiac stress test, bypass electrophysiological examination and atrioventricular conduction refractory period in 13 cases, the treatment of rapid room 13 cases of arrhythmia, the preliminary work is summarized as follows. Apparatus and Methods The FD-1 multi-function cardiac program stimulator was used to insert the endocardial pacing electrode into the esophagus from the anterior nostril of the patient to observe the esophageal electrocardiogram. Select the highest amplitude of P wave fixed and connected with the pacemaker. Pacing voltage 25-35V pulse width 6-10ms, with Ⅱ lead ECG observation, to determine the effective pacing began to check. Determination of sinus node function First, the subjects were: 44 cases of 30 men and 14 women, aged 21-78 years, of which 32 cases of non-sick sinus group, sick sinus group of 12 cases. Sputum recovery time (SNRT), sinoatrial conduction time (SACT), intrinsic heart rate