Ventricular Fibrillation (VF) By L Brent Mitchell, MD, Libin Cardiovascular Institute of Alberta, University of Calgary Reviewed / Revised Jan 2023 View Patient Education Treatment Topic Resources Ventricular Fibrillation Ventricular Fibrillation (ECG) Overview of Ventricular Fibrillat... Ventricular fibrillation causes uncoordinated quivering of the ventricle with no useful contractions.