Catheter Ablation

**Definition:** Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (DC-shock) or alternating current at radiofrequencies (usually 750 kHz). The technique is used most often to ablate the AV junction and/or accessory pathways in order to interrupt AV conduction and produce AV block in the treatment of various tachyarrhythmias.

**Tree numbers:** - E02.808.750.500 - E04.014.760.500

**Synonyms:** - Ablation, Catheter