How to use intracardiac echocardiography to guide catheter ablation of outflow tract ventricular arrhythmias

The anatomy of the ventricular outflow tracts and semilunar valves as it pertains to catheter ablation of outflow tract ventricular arrhythmias (OTVAs) has been previously described.1 Assessment of semilunar valve and regional anatomy by fluoroscopy and angiography has limitations. Coronary arteries may be subject to damage from catheter ablation near the semilunar valves due to their proximity to sites of origin of OTVAs. Detailed intracardiac echocardiography (ICE) views of the semilunar valves may be useful to understand anatomy, catheter location, and coronary artery proximity and variations.
Source: Heart Rhythm - Category: Cardiology Authors: Source Type: research