极性互换器在经食管心脏电生理检查中的应用李裕舒，曹林生，毛奕经食管心脏电生理检查中，因刺激阈值过高，使病人产生难以忍受的胸骨后疼痛，以致检查常难以完成。我们采用互换食管电极极性的方法，明显降低刺激阈值，减轻或消除疼痛，提高了检查的成功率。介绍如下。１... Application of Polar Exchanger in Electrocardiographic Cardiac Electrophysiology Li Yu-shu, Cao Lin-sheng, Mao Yi-jing Esophageal cardiac electrophysiological examination often leads to unbearable chest pain after the stimulation threshold is too high, so the examination is often difficult to complete. We used the method of reversing the polarity of esophageal electrodes, significantly reducing the stimulation threshold, reducing or eliminating pain, and improving the success rate of the examination. Introduced as follows. 1 ...