Ventricular Preexcitation of Every Other Beat?

K. Wang, MD


October 15, 2014

Ventricular preexcitation can be intermittent.[1,2] Sometimes only every other beat is preexcited, and sometimes several beats are preexcited at a time or for several days at a time. In leads V4-6 of this case, every other QRS complex is wide and has a short PR interval, and the upstroke is slurred (Figure).



Comments on Medscape are moderated and should be professional in tone and on topic. You must declare any conflicts of interest related to your comments and responses. Please see our Commenting Guide for further information. We reserve the right to remove posts at our sole discretion.