Table 3

Echocardiographic Findingslegend

AAIDDD
At ImplantAt MBFAt ImplantAt MBFAAI Mode at MBF
M-mode echo (N)1313141412
 LVEDD (mm)49 ± 549 ± 749 ± 648 ± 749 ± 7
 LVESD (mm)29 ± 530 ± 930 ± 431 ± 930 ± 8
Two-dimensional echo (N)1515111412
 LVED volume (ml)85 ± 3781 ± 3378 ± 2883 ± 3285 ± 32
 LVES volume (ml)35 ± 2333 ± 2131 ± 1739 ± 2337 ± 22
 LVEF0.62 ± 0.080.61 ± 0.100.61 ± 0.090.56 ± 0.070.59 ± 0.07
  • p = 0.013 as compared with measurement at pacemaker implant.

  • legend AAI = single chamber atrial pacemaker; DDD = dual chamber pacemaker; LVED = left ventricular end-diastolic; LVEDD = left ventricular end-diastolic diameter; LVEF = left ventricular ejection fraction; LVES = left ventricular end-systolic; LVESD = left ventricular end-systolic diameter; MBF = myocardial blood flow.