Kate says, "By any chance, have any Californians here had ..."
John says, "I was supposed to restart desk duties at work today ..."
Melinda says, "Hi - I am scared to death - I have been seeing my ..."
Search for heart hospitals that specialize in heart valve treatment.
All of that being said, if your son has afib post surgery, you will know and the doctors will know, and they will do everything they can, right there and then. Also he will be put on a blood thinner for at least a few months, regardless of the valve type, to prevent a clot. If the doctors feel the need to monitor it after he leaves the hospital, I assume they will prescribe a monitor to wear 24/7. He may never go into afib. I had afib before surgery, but not after. So, purchasing something you might never need? Maybe if you’re like me and believe in the umbrella theory - it doesn’t rain when you have an umbrella, but it pours when you leave home without one - maybe? But if it’s meant to be a just in case kind of thing, I think a pulse oximeter with a graph will be more useful. He should be checking his oxygen level regularly anyway, and the pulse graph will show any irregularities. If he develops arrhythmia after being discharged from the hospital, you should take him to ER, not wait until the doctor gets around to looking at an EKG sent remotely.