Can Radiofrequency Ablation Stop Tachycardia?

Radiofrequency ablation (RFA) is an interventional minimally invasive procedure. First, a cardiac catheter electrode is delivered into the heart through puncture of the internal jugular or subclavian vein and bilateral femoral vein, and electrophysiological examination is performed to confirm the diagnosis and the location of the lesion. Then, a special ablation catheter was selected to reach the lesion, and radiofrequency current was emitted. When the radiofrequency current contacted the myocardial tissue, high temperature was generated, which made the local myocardial tissue dry and necrotic, and the necrotic myocardial tissue no longer played the role of electrical conduction, so the arrhythmia could be treated. The operation was completed when the ablation was confirmed by electrophysiological examination.

Radiofrequency radiofrequency current is a kind of high-frequency alternating current with a frequency range of 100kHz ~ 3MHz. Radiofrequency ablation is essentially thermal damage. Tissue is heated by the heat energy transformed by the radiofrequency current, which causes dehydration and drying, and then leads to coagulation necrosis. At first, it was mainly used in medicine as high-frequency electroknife and electrocoagulator for surgery. The indications of radiofrequency catheter ablation for tachycardia are preexcitation syndrome and paroxysmal supraventricular tachycardia, ventricular tachycardia, atrial tachycardia, atrial flutter, and atrial fibrillation caused by the double route of the AV node. If it is sinus tachycardia can take medicine, such as propranolol, betaloc and other drugs can be.

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