用心内电生理方法比较心律平和氯卡胺电生理作用的异同。结果表明两者对传导影响明显,对不应期作用轻微。心律平对窦房结功能和房室结功能有轻度抑制作用,对房内传导和房间传导有延长作用。氯卡胺对旁道前传和逆传均有抑制作用,对高危预激保护作用尤为明显。提示心律平对房性心律失常的作用优于氯卡胺,但长期口服心律平更易诱发心动过速。 The electrophysiological methods were used to compare the electrophysiological effects of rhythmin and clofazadine. The results show that the two have obvious influence on conduction and little effect on refractory period. Cardiac arrhythmia on the sinus node function and atrioventricular node function mild inhibitory effect on the room conduction and room conduction have an extension. Chloramaryctin on the bypass pre-and anti-retrograde inhibition, especially for high-risk WPA protection. Tips on the role of atrial arrhythmias in patients with atrial arrhythmia better than clonamide, but long-term oral rhythm more likely to induce tachycardia.