What are the indications? Patients with paroxysmal supraventricular tachycardia can be diagnosed by electrocardiogram or electrophysiological examination at the time of onset 2. Pre-excitation syndrome 3. Atrial tachycardia 4. Idiopathic ventricular tachycardia 5. Atrial flutter, atrial fibrillation 6. Patients with frequent premature ventricular beats, symptoms are obvious and poorly controlled by medication The procedure of radiofrequency ablation surgery: Radiofrequency ablation is performed under fluoroscopy by puncturing the root of the thigh and A detailed intracardiac electrophysiological examination is performed to further clarify the diagnosis and type of arrhythmia and to make a preliminary judgment on the site of ablation. Then, we puncture the blood vessel at the root of the thigh, send an ablation catheter to the lesion, connect the radiofrequency ablation instrument, release the radiofrequency energy, thus generating high temperature locally, and remove the lesion through the thermal effect of high temperature. The patient is awake during the entire procedure and local anesthesia is used. After the procedure, local vascular compression is applied to stop bleeding and compression bandaging. The patient is discharged from the hospital after two days of observation. Are there any risks? As with any other procedure, there is no risk at all. The degree of risk depends on the type of arrhythmia and the site of ablation. For example, if the ablation site is adjacent to a normal conduction bundle, the risk of third-degree AV block is relatively high. Overall, the procedure is minimally invasive, technically mature, reliable, and has a very low incidence of serious complications. What is the success rate? The success rate depends on the type of arrhythmia. For example, paroxysmal supraventricular tachycardia, pre-excitation syndrome, and idiopathic ventricular tachycardia have a high success rate of over 95%, while typical atrial flutter has a relatively high success rate of over 90%, and atypical atrial flutter and atrial fibrillation have a lower success rate because they have the most complex mechanism of occurrence, which is about 70%. Except for atrial fibrillation, the recurrence rate after surgery is very low. In case of recurrence, secondary ablation can be performed. Most recurrences are of the same type as the previous arrhythmia, but some patients also develop other types of arrhythmias (not really a recurrence). Is there anything to be aware of with the procedure? 1. Take medication aspirin for 2-3 months after surgery, 75-100mg per day to avoid thromboembolic complications. 2. Do not swim for five days, take a shower as much as possible and avoid tub baths. Keep the puncture site clean and dry. Do not do strenuous activities within 1-2 weeks; 3. Take warfarin and amiodarone for 2-3 months after atrial fibrillation surgery. The cost of radiofrequency ablation: general paroxysmal supraventricular tachycardia, pre-excitation syndrome, idiopathic ventricular tachycardia generally requires 20,000-25,000 yuan (the types of arrhythmias are different, and their surgical methods and the surgical instruments and materials used are not exactly the same. (All surgical materials are disposable). Ablation of atrial fibrillation is more expensive because it needs to be done with the help of a three-dimensional calibration system, and the surgical instruments and materials used are more expensive, so the cost is higher, about 60,000-80,000 RMB. Contraindications of radiofrequency ablation: 1, pregnant women; 2, bleeding disorders; 3, infection at the puncture site or systemic infection; 4, organ failure, such as liver failure, kidney failure and other patients; 5, chronic wasting diseases in advanced stages, such as malignant tumors, etc. Complications: 1, bleeding, infection, embolism 2, complications caused by puncture, such as pneumothorax, hemothorax, etc. 3, atrioventricular block, individual causes of cardiac perforation, pericardial tamponade, etc. Serious complications are very rare.