Vol 68, No 4 (2010)
Invasive electrophysiology
Published online: 2010-04-23
Radiofrequency ablation of ventricular arrhythmia from the non-coronary cusp
DOI: 10.33963/v.kp.79791
Kardiol Pol 2010;68(4):489-492.
Abstract
There is a close anatomical relationship between the non-coronary aortic cusp (NCC) and sites where His bundle (HB) is
recorded in the right ventricle (RV). We describe a patient with frequent premature ventricular beats originating near HB.
Arrhythmia was successfully ablated from the NCC although local electrogram preceded QRS in NCC and His area. When RV
mapping reveals an earliest ventricular activation in the HB region, mapping in the right coronary cusp and NCC should be
done to identify the area of arrhythmia origin.
Keywords: ventricular arrhythmianon coronary cusp