I have third degree heartblock and i am 100 percent pacemaker dependent. what would my life expectancy be without a pacemaker?

Unknown: Previous studies haven't found an increase in longevity from pacemakers. BUT, defibrillating units have been found to increase life expectancy. BUT these studies were done decades ago and I have not found others in this decade and pacemakers are totally different now. You'd expect really short life expectancy and studies of less serious blocks show over 30% 1 yr death rates. Immediate to 1 yr ?

Pacemaker: Predictions of life expectancy due to complete AV block in an otherwise normal 47 y/o male would need lots of other data about the person and his life activities and interactions. A very general statement would be 'less than same person not burdened by complete AV block'. We would virtually unanimously agree the pacemaker is a necessary therapy.