DC Na delayed latent period of arrhythmia, shortened duration of arrhythmia and reduced the rate of ventricular fibrillation induced by ligating the left anterior descending coronary artery in rats.

• 延长冠脉结扎致大鼠心律失常发生的潜伏期，缩短心律失常的持续时间，降低室颤发生的百分率。