What is radio frequency? It is a kind of high frequency current with a frequency of 100 kHz – 1.5 MHz, and its actual release of an average voltage of 44 to 60 V to living tissues without causing pneumatic injuries. The physics of radiofrequency has three characteristics: electrocutting effect, electrocoagulation effect, and electrodehydration effect. What is radiofrequency ablation? The process of using the physics of radiofrequency electricity to discharge damagingly to the abnormal lesions of the heart, interrupting its abnormal channels or pacing points, thus restoring the normal electrophysiological properties of the heart itself, is known as radiofrequency ablation. Which patients are suitable for radiofrequency ablation treatment? What are the patient’s symptoms? Paroxysmal supraventricular tachycardia (pre-excitation syndrome, atrioventricular node double transection), atrial tachycardia, atrial flutter, idiopathic ventricular tachycardia, functional premature ventricular beats, and atrial fibrillation. Such patients mostly present with sudden and abrupt onset of panic, chest tightness, heavy sweating, shock, or even death, while the milder ones may recover on their own without symptoms and without treatment, while most of them are unable to live and work normally due to the impact on quality of life during both. How is the procedure done? Radiofrequency ablation is the best treatment for paroxysmal tachycardia. The electrode catheter is delivered into the heart through a vascular puncture in the patient’s chest and the root of the thigh, and radiofrequency current is introduced into the heart lesion tissue to produce local coagulative necrosis, thereby blocking the abnormal conduction bundle and eradicating the tachycardia or ectopic excitation. The success rate varies depending on the disease and can be over 95% for supraventricular tachycardia. Is the procedure painful? How long does it take? The frequency of the radiofrequency current is very high and does not stimulate the nerve fibers, so there is no pain during the ablation and no anesthesia is required. The only incision is the eye of the puncture needle at the blood vessel, and no sutures are needed after the procedure. Are there any after-effects after surgery? Radiofrequency ablation is currently one of the most advanced high-tech tools for the treatment of tachycardia. Since the procedure has the advantages of less trauma, faster recovery, less risk and fewer complications, the patient has no traces and side effects after the procedure. The patient will be discharged from the hospital in 3 to 5 days.