Detailed yet very understandable -- and helpful -- video. My 75-year-old husband just got an abnormal ECG showing pathological Q waves in leads I, II, and avF suggestive of a prior inferior MI. Surprise to us -- he's had no symptoms that we know of. His cardiologist has scheduled us for echo and stress tests. After watching this video, I believe I'll understand far more clearly what his cardiologist will explain and recommend. Thanks!