Ventricular ectopy from the non-coronary cusp: Pathophysiological and anatomical considerations

Panagiotis Ioannidis; Evangelia Christoforatou; Theodoros Zografos; Konstantinos Kouvelas; Andreas Tsoumeleas; Sotirios Floros; Theodora Kappou; Charalambos Vassilopoulos

doi:10.1016/j.ipej.2021.04.005

Ventricular ectopy from the non-coronary cusp: Pathophysiological and anatomical considerations

Indian Pacing Electrophysiol J. 2021 Jul-Aug;21(4):245-247. doi: 10.1016/j.ipej.2021.04.005. Epub 2021 Apr 19.

Authors

Panagiotis Ioannidis¹, Evangelia Christoforatou², Theodoros Zografos², Konstantinos Kouvelas², Andreas Tsoumeleas², Sotirios Floros², Theodora Kappou², Charalambos Vassilopoulos²

Affiliations

¹ Heart Rhythm Center, Athens Bioclinic, Athens, Greece. Electronic address: ioannidis.pan@gmail.com.
² Heart Rhythm Center, Athens Bioclinic, Athens, Greece.

Abstract

Non-coronary cusp (NCC) is a rare site for ventricular arrhythmias because it does not come into direct contact with the ventricular myocardium. Instead, the NCC comes in contact with the membranous septum near the His region. We describe a case of a young man with a ventricular ectopy who was successfully ablated in the NCC. In our case the much greater prematurity in the NCC than in the His region suggests that the arrhythmic site of origin is not in the peri-His area but most likely a myocardial extension adjoining the aortic root.

Keywords: Aortic root; Catheter ablation; Myocardial extensions; Non-coronary cusp; Ventricular ectopy.

Publication types

Case Reports