Some people forget that when I'm not on Oprah, I'm a practicing heart surgeon. I had an assistant shoot this video of me and my team repairing a patient's mitral valve. The mitral valve is on the left side of the heart, where blood comes in from the lungs and gets pumped out to the rest of the body. When the valve doesn't work, as in this patient, blood flows backward into the lungs... a big problem. Hope you enjoy, and be sure to check out "The Dr. Oz Show," starting Sept 14.
