In 1983 my nursing class took a field trip to the Texas Heart Institute in Houston. It was fascinating to look down through a special viewing area and watch chest cavities opened as the physician surgically repaired heart defects, one right after the other.
Although we did not see a heart transplant, the bible reminds me that Jesus, the Great Physician, has been doing heart transplants for a long time.
I will give them an undivided heart and put a new spirit in them; I will remove from them their heart of stone and give them a heart of flesh. Ezekiel 11:19 NIV
Thank you Lord for a new heart.