Prayer Request for Rick

I am having aortic valve replacement surgery Tuesday morning. Will be in hospital 3-5 days. During my annual echo, my cardiologist decided the pressure across the aortic valve had increased to the severe level and recommended replacement. We knew the valve would need replacement but did not expect this so soon. My only symptoms has been being tired alot. I had heart cath on Monday to confirm and to make sure there were no blocked arteries (there weren't). We met with cardiothoracic surgeon on Wed to discuss options. Dr William Cooper will do the surgery.
Thanks in advance for your prayers.
Rick