Table 1.
Patients Characteristics
| Characteristics | Group A | Group A1 | Group A2 | Group B |
|---|---|---|---|---|
| Number | 23 | 8 | 15 | 23 |
| Males/Females | 16/7 | 6/2 | 10/5 | 16/7 |
| Age (years) | 64.2 ± 9.2 | 65.1 ± 7.1 | 63.5 ± 9.7 | 64.2 ± 9.2 |
| Heart rate (beats/min) | 68.3 ± 11.4 | 66.4 ± 8.1 | 69.1 ± 6.5 | 66.5 ± 9.5 |
| Supraventricular extrasystoles/24 hours | 131.1 ± 45.4 | 162,7 ± 40.4 | 109.1 ± 54.9 | 17.1 ± 18.9 |
| P < 0.0002a | P < 0.0001a | P < 0.0004a | ||
| P < 0.003b | ||||
| Ejection fraction (%) | 58.8 ± 9.6 | 59.1 ± 6.9 | 58.2 ± 9.9 | 62.9 ± 7.7 |
| Coronary heart disease (n) | 23 | 8 | 15 | 23 |
| Right coronary artery (n) | 23 | 8 | 15 | 0 |
| Left anterior descending artery (n) | 14 (61%) | 5 (63%) | 8 (53%) | 15 (65%) |
| Left circumflex artery (n) | 8 (35%) | 2 (25%) | 6 (40%) | 11 (48%) |
| LA (mm) | 38.2 ± 1.5 | 38.8 ± 1.1 | 38.1 ± 1.4 | 38.0 ± 1.5 |
| Diabetes mellitus (n) | 3 (13%) | 1 (13%) | 2 (13%) | 3 (13%) |
| Hypertension (n) | 16 (70%) | 6 (75%) | 10 (67%) | 16 (70%) |
| Sotalol (n) | 2 (9%) | 2 (25%) | 0 | 0 |
| Verapamil (n) | 3 (13%) | 2 (25%) | 1 (7%) | 0 |
| β‐blockers (n) | 17 (74%) | 4 (50%) | 13 (87%) | 17 (74%) |
Abbreviations: ECG: electrocardiogram, Group A1: patients with paroxysmal atrial fibrillation, Group A2: patients with sinus rhythm, LA: left atrium diameter, RMS 20: root mean square of the last 20 ms of the P wave,a: in relation to group B,b: in relation to group A2.