Re: stoping and restarting heart
I've had cardioversions done several times without problems.
As someone said, there is a risk of a stroke if there are blood clots in the atria. Usually if someone is hospitalized with afib, the doctor will prescribe IV heparin to minimize this possibility. I take warfarin (blood thinner) regularly to keep clots from occurring. I am very prone to atrial fibrillation.
If there are no complications, it's a piece of cake for the cardiovertee.
My cardiologist finally put me on a medicine (sotalol hcl) that has kept my heart at normal sinus rhythm for several years. But he still keeps me on warfarin just in case.