Got a loved one having this surgery done soon, diagnosed with aortic stenosis and damaged valve. Local cardio is OK and I'm also blessed with having one of the best heart valve docs in Texas as a friend to consult via email or when he shows up at our gigs but he's 100 miles away with a super career. We'll most likely have the surgery done outside of Houston due to logistics post-surgery. Due to loved one's age, my friend strongly suggested the mechanical valve as it last 20+ years vs 10 or less for the biological valve. Mechanical valve requires one to use blood thinners forever, the newer ON-X valve allows for lesser amounts of thinners. I'm aware that for every 100 that get this surgery only 95 come out alive and then 30 to 35% get complications. With an engineering background, worst case and reality-based info is what I've uncovered(medical journals, survivors blogs, etc.). Questions for those familiar with this journey assuming the surgery goes OK and loved one is discharged for recovery AND no complications. Loved one is 59 years old. 1) Recovery time? 2) What to avoid? 3) Suggestions to speed up recovery? 4) Cautions with being on blood thinners? 5) How long after surgery before patient can walk? 6) If walking is out for a while, how long is the wheel chair used/required? Many other questions but my cardio-doc friend has answered most of them but an actual person going through this sees things very differently than docs. Thanks for any and all answers. BTW, I personally take Co-Q10 + PQQ, proline, lysine, and mega Vit C twice per day to keep my oil pump(heart) healthy and arteries/veins clean along with a LOT of other things.