QRS complex maximum deflection index in aortic cusp premature ventricular complexes

Konstantinos C Siontis; Malini Madhavan; Suraj Kapa; Samuel J Asirvatham; Peter A Noseworthy

doi:10.1016/j.ijcha.2015.01.014

QRS complex maximum deflection index in aortic cusp premature ventricular complexes

Int J Cardiol Heart Vasc. 2015 Feb 7:7:6-8. doi: 10.1016/j.ijcha.2015.01.014. eCollection 2015 Jun 1.

Authors

Konstantinos C Siontis¹, Malini Madhavan², Suraj Kapa², Samuel J Asirvatham², Peter A Noseworthy²

Affiliations

¹ Department of Medicine, Mayo Clinic, Rochester, MN, United States.
² Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, United States.

Abstract

•We reviewed 185 PVC catheter ablation cases and identified 17 in which PVCs were successfully ablated in the aortic cusps.•The MDI measured 0.53 ± 0.10 (median 0.50, IQR 0.47-0.60).•In all (100%) cases MDI was > 0.40 and in 7 (41%) cases it was > 0.55.•Pseudo-delta wave was absent in all but one PVC•PVC origin in the aortic cusps should be considered along with the epicardium when MDI is in the vicinity of 0.55.

Keywords: Aortic cusps; Maximum deflection index; Premature ventricular complex.