Quack with an interest in Cardiology here.
As a quack who has to do some cardiology when on call +1 everything stoatsbrother said
Can’t believe they fix cardiac problems by actually “turning it off, then turning it back on again”!
Try googling “open heart surgery” then Brant, or alternatively contemplate your chances of being able to replace my rear mech while I ride the bike down the hill. At the very least it will make a cracking video.
OP please note that Open Heart Surgery is NOT needed for your condition.
I would encourage anyone who is worried about chest/heart symptoms to seek advice. Done it myself when I started having persistent chest pains which I felt I could no longer assume were muscular and caused by heaving a heavy toddler around. Thankfully all OK and heavy toddler it was. Mind you, I always remember that the Prof of Cardiology at one hospital where I worked died of his heart attack having allegedly been treating himself for indigestion for some time previously and despite being one of the world experts on the prediction and early diagnosis of heart attacks. If in doubt, seek advice.