Clinical characteristics and outcome of patients with or without device detected atrial fibrillation (AF) episodes by pacemaker diagnostic counters after implantation
| AF (n = 99) | No AF (n = 127) | P values* | |
|---|---|---|---|
| *Comparison between the presence and the absence of atrial fibrillation documented by the pacemaker after implantation. | |||
| Age (years) | 72 (10) | 70 (10) | 0.21 |
| Female (%) | 56 | 66 | 0.17 |
| Duration of follow up (months) | 88 (32) | 82(27) | 0.19 |
| Prior history of AF (%) | 55 | 25 | <0.001 |
| Antiarrhythmic | |||
| Baseline (%) | 32 | 5 | <0.001 |
| Follow up (%) | 56 | 6 | <0.001 |
| Anticoagulation | |||
| Baseline (%) | 28 | 3 | <0.001 |
| Follow up (%) | 49 | 6 | <0.001 |
| Underlying heart disease (%) | 76 | 54 | <0.001 |
| Hypertension | 37 | 36 | 0.22 |
| Ischaemic heart disease | 36 | 28 | 0.02 |
| Hypertrophic cardiomyopathy | 9 | 13 | 0.42 |
| Thyroid heart disease | 5 | 5 | 0.66 |
| Dilated cardiomyopathy | 2 | 1 | 0.33 |
| Left atrial diameter (cm) | 4.0 (0.7) | 3.6 (0.7) | 0.02 |
| Left ventricular ejection fraction | 0.50 (0.13) | 0.56 (0.15) | 0.04 |
| Left ventricular mass (g) | 274 (105) | 240 (120) | 0.21 |
| Left ventricular hypertrophy (%) | 39 | 18 | <0.001 |
| P wave duration (ms) | 130 (21) | 122 (17) | 0.049 |
| Combined cardiovascular events (%) | 42 | 15 | <0.001 |
| Non-fatal stroke (%) | 32 | 8 | <0.001 |
| Hospitalisation for congestive heart failure (%) | 15 | 10 | 0.31 |
| Cardiovascular death (%) | 9 | 4 | 0.16 |