What does radiofrequency ablation needle mean?

An interventional technique that uses an electrode catheter to release radiofrequency current in one part of the heart cavity to cause coagulation necrosis of local endocardial and subendocardial myocardium, thereby destroying the origin of some tachyarrhythmias. The basic equipment is X-ray machine, radiofrequency current generator and intracardiac electrophysiological examination instrument. Under local anesthesia, 3 to 4 electrode catheters were sent through femoral vein and subclavian vein to the coronary sinus, the high right atrium and the Sheetroch bundle, the right ventricle, etc., to stimulate the atrium and ventricle to induce clinically consistent tachycardia, locate the origin point of tachycardia, and then the electrode catheter used for ablation was delivered to the located origin point and connected to the radiofrequency generator in vitro. Repeat electrophysiological examination after discharge. If no tachycardia is induced and no attack occurs during clinical follow-up, the ablation is successful. Currently, the diseases that can be treated with this technique include: preexcitation syndrome, paroxysmal supraventricular tachycardia, atrial flutter and atrial fibrillation, ventricular tachycardia, and atrial tachycardia. The cure rate of paroxysmal supraventricular tachycardia is more than 90%, and the cure rate of ventricular tachycardia is about 50%. Radiofrequency ablation of atrial tachycardia, atrial flutter and atrial fibrillation is in clinical trials.