Radiofrequency ablation procedures require hospitalization. Radiofrequency ablation procedure is used to treat arrhythmia. Radiofrequency current is released through electrodes, which can be converted into heat energy between the head end of the catheter and the localized myocardium, causing specific myocardial tissues to become degenerated and necrotic, and it can be achieved by altering the autoregulation and conduction of myocardial muscle in that area. Because the procedure may accidentally injure the Hitchcock’s bundle, resulting in second or third degree AV block, the most serious may lead to cardiac perforation and cardiac tamponade, etc., but the incidence is extremely low, which is very dangerous, so hospitalization is required to do the radiofrequency ablation procedure. If radiofrequency ablation is required, an individualized treatment plan should be formulated by the doctor according to the specific condition to avoid delay.