HI. Thank you for your post. Your concern here is a valid one, and one I have heard from other members of the community over the years. The decision as to whether or not to allow someone to do surgery on your heart (or in this case your dad's heart) is a difficult one to make. I do look forward to others in this community providing their advice here. In the meantime, I do have something to add. It looks to me, based on what you describe, that your dad is in a good position. His doctors have determined that he may benefit from the CABG procedure while he is still in good health overall. And keep in mind that doctors have been performing this procedure for more than two decades, and have gotten pretty good at it. And so I think that the success rate is rather high. And I have talked to many people who have had this procedure, and nearly all of them said they feel so much better knowing their heart is fixed. So, I would think, based on your concerns about this surgery, that maybe it would be a good idea to schedule another appointment with your doctor who recommended this to discuss this very topic. Perhaps he/she can provide you and your dad with further information as to allay any concerns that you have, and perhaps help you and your dad make the decision you both feel is best. What do you think? John. heart-failure.net community moderator.