Definition: Electrophysiologic procedure during which catheters are remotely steered to an ablation site of interest (e.g., the atrioventricular node) to transmit radiofrequency energy from the tip of the catheter to heat cardiac tissue from the endocardium (or more rarely, the epicardium) thereby disrupting electrical conduction in the ablated region. Commonly used to disrupt or prevent atrial or ventricular arrhythmias.
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