A practical approach to slow pathway ablation for the treatment of atrioventricular nodal re-entrant tachycardia (AVNRT) is to use a combined anatomic and electrogram technique to identify target sites. The efficacy and safety of radiofrequency (RF) ablation depend on the stability of the ablation catheter during RF energy delivery. Unusual anatomy, abrupt rhythm changes during RF application, and intraprocedural catheter …