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作者提出了用一高频插管将高频电流送到传导系统以产生完全的房室传导阻滞的技术。它由一特殊导管通过狗的股静脉送到右心房固定在希氏束上来记录希氏电位,用高频电脉冲来刺激传导系统使狗产生心传导阻滞。方法是:选十只体重在10.5到16kg的狗,给每只狗进行麻醉,剂量为25mg/kg戊巴比妥钠。分离出狗的外周颈静脉,插入一双向导管
The authors propose a technique of using a high-frequency cannula to deliver high-frequency current to the conduction system to produce complete atrioventricular block. It consists of a special catheter through the dog’s femoral vein sent to the right atrium fixed in His bundle to record the Hisz potentials, with high-frequency electrical pulses to stimulate the conduction system so that dogs with heart block. Methods: Ten dogs weighing 10.5 to 16 kg were selected and each dog anesthetized with a dose of 25 mg / kg sodium pentobarbital. The dog’s external jugular vein was isolated and a bi-directional catheter inserted