Objective To explore the feasibility of a new method to establish complete atrioventricular block animal model induced by radiofrequency catheter ablation through femoral artery. Methods Eight healthy male mongrel dogs weighing 15-20 kg were anesthetized with 3% Na-pentobarbital and sutured with temporary pacing electrodes and recording electrodes on the left ventricle.Under the guidance of X-ray,the ablation catheter was retrogradely delivered to the noncoronary cusp via femoral artery.Once the potential o...