0.12 seconds)e QRS complex is bizzare or distoed (notched)e QRS complex is not proceeded by a P wave e QRS complex is frequently 'allowed by a complete compensatory pause e ST segment and T The ST segment and T wave slope in the opposite direction from the main deflection of ORS wave complex Note : A V dissociation' with 'capture beats' and fusion beats' are diagnostic criteria for ventricular tachycardia (VT) and not for PVC's. However, VT is defined by the presence of three or more consecutive PVC and hence AV dissociation, capture beats and fusion beats may be said to be occasionally present in PVC's when they occur in consecutive bests.">