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长期以来,各国学者都尝试在人体直接记录窦房结(SAN)的电活动,但因条件所限终未成功。1964年 Lown 氏曾将心房颤动电复律以后较长时间不能恢复自主实性心律或混乱的心房节律定名为病态窦房结综合征。1968年 Ferrer 氏从心电图角度概括了它的表现。迄今已建立多种方法如神经反射、药物激发试验、运动试验和电生理检查来评价SAN 的功能。尽管目前公认超速抑制测定窦房结恢复时间(SNRT)和程序刺激估算窦房传导时间
For a long time, scholars from all over the world have tried to directly record the electrical activity of the sinoatrial node (SAN) in the human body. 1964 Lown’s once atrial fibrillation after cardioversion for a long time can not be restored autonomic heart rhythm or chaos atrial rhythm named as sick sinus syndrome. In 1968 Ferrer’s ECG summarizes its performance. So far, a variety of methods have been established for evaluating SAN function, such as nerve reflex, drug challenge test, exercise test and electrophysiological examination. Although it is currently accepted that speeding inhibition measures sinus node recovery time (SNRT) and procedural stimulation to estimate sinoatrial conduction time