Hi.
I had one not too long ago (April 15, 2005) minus the deep hypothermic cardiac arrest. My understanding is that the hypothermic business is an alternative to bypassing via the heart/lung machine. For what it is worth, my surgery lasted about 2 hours and used the traditional bypass machines. With the Bentall, instead of just giving you a replacement aortic valve, they remove a section of your aorta that is experiencing an aneurism. The section of the aorta is replaced by a 'cloth' (in my case it was Dacron) tube. My surgeon decided to do a Bentall the day before my surgery because my aortic aneurism was close to the diameter that calls for surgery. He dropped this on me when I met him for the first time in person in cardiac ICU. He said we should just go ahead and replace it to avoid risking a future surgery. I chose to go with a St. Jude Mechanical Valve vs. poricne or bovine. However, I don't think you are limited to a mechanical. He expected me to have a full recovery and did not cite any real differences between the Bentall and valve replacement only. They do this to avoid a potential aortic dissection, which can be fatal. If I am correct, John Ritter died not too long ago from an undiagnosed aortic aneurism that led to dissection. I have done great with mine. I think the only difference between someone with just the replacement valve vs. the cloth tube/replacement valve is that when I take a deep breath I can feel the tube resonating off my sternum. The cardio said that this was completely normal. I am 5 weeks out of surgery and walk 3-5 miles per day + a variety of other exercises. I was instructed to keep my INR within the 3-3.5 range which I think is similar to aortic valve replacement only folks (they may get a 2.5-3.5 range, but who's counting??? haha). Anyway,I can assure you that it is nothing to get upset over. I was told that it would make no difference and would ensure that I avoid future aneurisms in that area. Hang in there.