PO-05-232 SAFETY AND EFFICACY OF ATRIOVENTRICULAR NODAL REENTRY TACHYCARDIA ABLATION USING AN IRRIGATED CONTACT FORCE CATHETER

Atrioventricular Nodal Reentry Tachycardia (AVNRT) ablation is a common procedure in contemporary electrophysiology practice. Traditionally for AVNRT has been performed with non-irrigated catheters, guided by fluoroscopy and intracardiac electrograms. Increasingly electroanatomic mapping systems are utilized to allow low or zero procedures. Contact force catheters can provide information on tissue contact stability that be helpful patients challenging anatomy. Available irrigated concern existed using tip due the potential create lesions too deep could increase risk AV block. To describe safety efficacy use of Review procedural data from undergoing radiofrequency electroanatomical combined catheter. Fifty 4 regions across Australia were included. Procedures 9 experienced electrophysiologists. No periprocedural complications occurred. Procedural success was achieved 96%. Median lesion (25-75 centile) 4.0(2-6)g. Peak power set at 50W, median baseline irrigation 2ml/min 6ml/min during ablation. number 9(4.5-17.5); total time 203(95-366) seconds. 60% cases without fluoroscopy. Ablation an catheter setting safe effective. settings may safely improve rates anatomy other substrate close proximity vital structures.