My husband had afib ablation 5 months ago with complications- perforation of atrium, bled into pericardium, tapped for 600 cc blood, all of which caused pericarditis with symptoms. Has been back in afib several times despite Tikosyn and metoprolol, trigger seems to be pulse over 110 while exercising. He can’t do what he wants to do, which is even moderate exercise, without going into afib. What to do?? A “cleanup” ablation after his horrible experience? Stop being active? He is now on metoprolol 100mg twice daily. Thanks.