Hello everyone, I am new here. I was searching the internet for information on shocking someones heart back into rythm who has A-Fib, when I came across this site. My mother, age 75, had pericarditis last September. We got her through that well enough. The Dr. put her on Metropolol and baby aspirin. In the last month she has been put on Coumadin and High Blood Pressure medication Altace. She was also told that she has Atrial Fibrillation. The Dr. told her in about 3 months he is going to try shocking her heart back into rythm. I have just learned that it is called Synchronized Cardioversion. Does anyone know if there are side effects or dangers? Thank you for your help. Bev E.