A 28 year old man presents to your office with an implantable cardiac defibrillator (ICD) in place. He shows you his EKG, shown here:
Click image to enlarge
You are asked for a second opinion to see if he really needs his ICD. He has no reports from the other hospital with him.
What is the differential diagnoses offered by this EKG, and of those, given his age and EKG findings, what might be the most likely diagnosis?
* Prior "EKGs Du Jour" can be reviewed by typing "Du Jour" in the search box on the right side bar of this blog.