Safety of racfiofrequency catheter ablation without coronary angiography in aortic cusp ventricular rhythmias

摘要

BACKGROUND Ventricular arrhythmias (VAs) originating from the aortic root are common. Coronary angiography is typically recommended before catheter ablation to document proximity of the ablation catheter to the coronary ostia.OBJECTIVE To investigate how often catheter ablation in the aortic root could be guided by phased-array intracardiac echocar-diography (ICE) and electroanatomic mapping without requiring aortography or coronary angiography.METHODS We reviewed consecutive patients referred for aortic root VAs to operators experienced in the use of ICE at a single center. An ICE catheter and a 3.5-mm irrigated ablation catheter were used in all cases, and the need for angiography before ablation was documented. Acute success and acute and 30-day complications were noted.