窦房结功能紊乱在心脏病患者中占有重位置,且是阿-斯综合征发生及猝死的原因之一。因常规心电图不能反映窦房结区的电活动,故早期诊断较为困难。目前临床上和实验室内均采用心导管电极直接记录窦房结电图。此法因具有创伤性、且对设备要求较高,故难以推广。此外亦有用食道调搏法 Sinus node dysfunction occupies a heavy position in patients with heart disease and is one of the causes of Alzheimer’s disease and sudden death. Due to conventional ECG can not reflect the electrical activity of the sinus node area, so early diagnosis is more difficult. Current clinical and laboratory cardiac catheterization electrodes are used to directly record the sinoatrial node electrogram. This method because of the traumatic, and the higher equipment requirements, it is difficult to promote. In addition also useful esophageal pacing method