Wow!!! Just got a pyscho burst of energy and elevated thought processes. Two slices. Easy peasy, just like Pi. It is called transcatheter aortic valve replacement. The slices were not figurative. Pain free surgery, well at least for me and for the last 3 surgical procedures. I don't have a clinical eval at present, but, the amount of blood my heart was capable of pumping was reduced from optimal. Somewhere like 30 to 35 percent efficacy. Now, I've got a new one, and, a little further information from my amazing NP as to what "weak heart" means. In my case it even involved knowledge I already had via my daughter's congestive heart failure at 6 days old. Reduced contractility. Means your muscle can't squeeze much. Those muscles remain in a state of semi rigor, incapable of relaxing in order to allow heart chambers to completely fill with blood for heart's next push. Guess what? Aortic valves were probably the model for the Tri Pods novel and tv series protagonists. They are 3 flaps