How effective and safe is radical catheterization for atrial fibrillation? Among the available methods for the treatment of atrial fibrillation, radical catheterization is the least invasive and the most effective procedure. At present, in large medical centers in developed countries, radical catheterization has become one of the first choices for the treatment of patients with atrial fibrillation, and the success rate can reach 80% to 90%, but about 30% of the patients need to undergo two or even more radical catheterizations. In China, due to cost issues, most patients receive only a single treatment, so the success rate is 70% to 90%. The success of atrial fibrillation catheterization is marked by the complete disappearance of atrial fibrillation without the need to take any anti-arrhythmic drugs, which is commonly known as radical cure. Xinhua Wang, Department of Cardiology, Shanghai Renji Hospital Among the patients with recurrence, about half of the atrial fibrillation episodes are significantly less frequent and shorter in duration, that is, they reach the effective standard. With the maturity of the technology, the safety of this treatment has been sufficiently guaranteed. The incidence of its two most serious complications, pulmonary vein stenosis and cardiac perforation, have both been reduced to about 1%. In experienced centers, the actual incidence is even lower than this figure. Even in the case of cardiac perforation and symptomatic pulmonary vein stenosis (most patients with pulmonary vein stenosis are asymptomatic), the vast majority of patients can be treated with pericardiocentesis drainage and stent placement. Warmly remind you if you have a disease, please do not have too much heart burden, keep a good mood, early prevention, early detection, early treatment, is to maintain the fundamental health.