抄録
The average lifespan of our 69 removed pulse generators in the last three years was only 20.3 months. About half of those 69 units were replaced by battery exhaustion and by elective (prophylactic) reasons. Another half of pacemakers had to be removed from patients by various pacemaker complications excluding battery problems. Our data suggested that tha diminution of various pacemaker complications was mandatory for the prolongation of the average lifespan of pacemakers. Twenty-two of the 69 units were replaced by the battery depletion. The failed implant lifetimes of these 22 were 29.8 months in average. The lifespan of present mercury battened pacemakers seemed to be about three years on fortunate occasions.
