RESEARCH COMMUNICATIONS OF THE 28th ECVIM-CA CONGRESS

Accessory pathways (APs) are extra‐nodal muscular bundles that connect atrial and ventricular myocardium. In dogs, APs are mostly right‐sided, with non‐decremental conduction, and mediate atrioventricular reciprocating tachycardias (AVRT). Radiofrequency catheter ablation (RFCA) is the first line therapy in people and veterinary medicine data suggest that it can be safe and successful in dogs. The objective of this study is to confirm the anatomical distribution of APs and their electrophysiologic characteristics in a large canine population and to evaluate long‐term success and complication rates of RFCA.