It would have the same affect as a blood clot/occlusion on his coronary arteries but in this case anticoagulants won't dissolve the blockage and they can't "stent" the blockage - I would wonder if they could attempt to surgically remove this.
A cardiac arrthymia could be fatal for this poor man.
Cheney most likely is distraught over this I would think.
Lucky for Whittington that one of the best heart surgeons in the country, Dr. Sergio Tavaras, is in Corpus Christi. Dr. Tavaras performed a quadruple bypass and heart valve surgery on my mother.
Upon hearing she had to have the surgery, I nearly had a fit that she wouldn't take advantage of having a great heart surgeon in Houston operate on her. I did get her to come to Houston for a second opinion at Michael DeBakey's practice. She was told that there was no greater heart surgeon than Sergio Tavaras in the entire country! He did a wonderful job and is practically worshiped in South Texas.