Summary of patient data
| Lone AF group (n = 41) | MVD group (n = 36) | Control group (n = 15) | p Value | |
|---|---|---|---|---|
| Data are mean (SEM) or number. | ||||
| AF, atrial fibrillation; AVR, aortic valve repair or replacement; CABG, coronary artery bypass grafting; CAF, chronic atrial fibrillation; IRAAF, intraoperative radiofrequency ablation of atrial fibrillation (placement of linear lesions within the left atrium22); LVEF, left ventricular ejection fraction; MVD, mitral valve disease; MVR, mitral valve repair or replacement; NS, not significant; PAF, paroxysmal atrial fibrillation. | ||||
| *Lone AF versus MVD; †versus control. | ||||
| PAF | 21 | 7 | 0 | |
| CAF | 20 | 29 | 0 | |
| Cardiac surgery | IRAAF | MVR+IRAAF | MVR 6, MVR+CABG 1, CABG 6, AVR+CABG 2 | |
| Age (years) | 50 (12) | 63.5 (10) | 61 (8) | <0.05*, NS† |
| LVEF (%) | 60 (7) | 56 (15) | 55 (15) | NS |
| Left atrium (mm) | 43 (6) | 55 (11) | 44 (7) | <0.05*, NS† |