Abstract
Wehaveimplantedcardiac pacemakers for 483 patients during the past 24 years. Their ages ranged from 1 to 91 years ( average 60.6). The indications in implantation were complete A-V block (AVB) in 244, sick sinous syndrome (SSS) in 179, atrial fibrillation with brady cardia in 48, AVB+SSS in 10 patients and so on. The pacing modes employed were nonphysiolosical pacing (NP) in 282 and physiological pacing (PP) in 201 patients. One hundred and thirty-three patients were dead, and the cause of death was cardiac in 35, thromb-embolic in 24 patients and so on. There was no difference of servival rate in terms of the four major indications. However, survival rate of PP was significantly superior to that of NP. Although, there was no difference in cardiac death-free rate between NP and PP, PP was superior to NP as to thrombo-embolism-free rate. The reduction of thrombo-embolic complication was obvious especially in the case of NP for SSS. The results suggest that PP reduces the incidence of thrombo-emblism and thus impro-yes survival rate in patients with cardiac pacemaker.
