In  addition  to  drugs  and  nonsurgical  procedures,  several types  of surgery can restore  your heart’s rhythm.  Implantation of a pacemaker can treat bradycardia (slow heartbeat);  an internal  cardioverter- de?brillator can correct more serious arrhythmias; or a procedure called maze surgery can be performed  on some people with atrial ?brillation. Pacemakers A pacemaker  is a battery-powered […]