Hello, I wonder what kind of radiofrequency ablation you want to do? For example, radiofrequency ablation of supraventricular tachycardia generally costs more than 20 thousand yuan, while radiofrequency ablation of atrial fibrillation costs 60 thousand to 80 thousand yuan. It's hard to say how much it will cost because you didn't explain. There are also many authoritative experts in China, such as Professor Ma Changsheng from anzhen hospital, Beijing, Professor Yao Yan from Buwai Hospital, and Professor Liu Xu from Shanghai Chest Hospital, all of whom are well-known ablation experts in cardiology. As for sequelae, no matter what surgery, as long as you find a good doctor, you can minimize the risk. I hope my answer is helpful to you. Good luck!