[ XXXX (extrinsic and intrinsic form) during long term observation].

@entity1 @entity1169 @entity64 @entity16 @entity1163 @entity1817 @entity3897 @entity1168
The aim of the study has to be find, on basis of long term follow-up, an independent factors determining of pacemaker implantation in @entity1 with @entity1817 . The second point was to find an independent risk factors of @entity64 and another serious complication in this group of @entity1 (specially in paced group). The study group consisted 169 pts with @entity1817 (in all pts abnormal electrophysiological tests--transoesophageal atrial stimulation). The form of @entity1817 (extrinsic or intrinsic) was determined on basis of electrophysiological study after pharmacological denervation of the heart ( @entity1169 and @entity3897 i.v. in doses 0.2 and 0.04 mg/kg body weight respectively). The statistical analysis was performed on all pts (97 @entity1 and 72 @entity1 48 +/- 16 yrs old) using Cox's model of proportional hazardous analysing. The follow-up period ranging from 14 to 84 months (mean 49.9 +/- 19). Pacemaker was implanted in 88 pts during observation period. @entity64 signs were found in 7 pts including 6 pts after pacemaker implantation. There was 13 death (7 sudden or primary @entity16 ). CONCLUSIONS: 1) independent factors of pacemaker implantation were @entity1163 , age and persistent @entity1168 , 2) form of @entity1817 was not an independent factor of this decision, 3) age (older), persistent after pacemaker implantation @entity1163 and registered in transesophageal ecg ventriculo-atrial condition were independent risk factors of @entity64 in pts with VVI stimulation, 4) despite of pacemaker implantation (VVI mode) many @entity1 have @entity1163 or @entity1163 attacks but life comfort in this group was much better then before implantation.
