Table 1

Patient Characteristics at Time of MBFlegend legend

AAIDDD
Age (yrs)71 ± 1276 ± 9
Gender (m/f)4/119/6
Time since pacemaker implant (months)23 ± 722 ± 8
Brady-tachy syndrome at implant68
Coronary artery disease46
 Prior MI25
Arterial hypertension31
NYHA class I/II/III/IV10/4/1/011/4/0/0
Diabetes42
Smoker32
Medication
 Beta-blocker65
Ca-blocker23
 ACE inhibitor45
 Nitrates24
 Digoxin36
 Antiarrhythmics02
 Aspirin1012
 Anticoagulation02
 Diuretics67
Programmed pacemaker rate
 Lower rate 50/60/70/75 beats/min4/7/4/02/11/1/1
 Upper rate 120/130 beats/min11/314/1
  • legend Figures indicate number of patients. Continuous data are presented as mean ± SD. Brady-tachy syndrome at implant is defined as at least one episode of documented supraventricular tachycardia before pacemaker implantation.

  • legend AAI = single chamber atrial pacemaker; ACE = angiotensin-converting enzyme; DDD = dual chamber pacemaker; MBF = myocardial blood flow; MI = myocardial infarction; NYHA = New York Heart Association heart failure classification.