Table 2.
Univariate analysis of predictors of recovered ejection fractions.
| Recovered group (n = 113) | Non-recovered group (n = 43) | OR (95%CI) | P | |
|---|---|---|---|---|
| Age, mean (SD), years | 62.8 (11.2) | 65.9 (10.1) | 0.175 | |
| Sex, no. (%) | ||||
| Male | 77 (68.1) | 28 (65.1) | 0.356 | |
| Female | 36 (31.9) | 15 (34.9) | ||
| Type of AF, no. (%) | ||||
| Paroxysmal | 36 (31.9) | 13 (30.2) | 0.124 | |
| Persistent | 77 (68.1) | 30 (69.8) | ||
| Duration of AF, mean (SD), years | 3.1 (4.6) | 3.9 (5.9) | 0.427 | |
| Hypertension, no. (%) | 53 (46.9) | 20 (46.5) | 0.965 | |
| Diabetes, no. (%) | 24 (21.2) | 4 (9.3) | 0.38 (0.12–1.17) | 0.083 |
| Coronary disease, no. (%) | 14 (12.4) | 7 (16.3) | 0.525 | |
| Valvular disease, no. (%) | 10 (8.8) | 6 (14.0) | 0.348 | |
| CHA2DS2-VASc score, mean (SD) | 2.4 (1.5) | 2.3 (1.3) | 0.914 | |
| LVEF, mean (SD), % | 38.57 (8.0) | 36.1 (6.8) | 0.90 (0.91–1.00) | 0.022 |
| LAD, mean (SD), mm | 43.0 (5,0) | 43.9 (4.2) | 0.278 | |
| LVD, mean (SD), mm | 52.5 (6.8) | 54.3 (6.8) | 0.148 | |
| E/E′, mean (SD) | 10.8 (4.2) | 16.6 (9.5) | 1.17 (1.08–1.26) | 0.001 |
| HRmax, mean (SD), beats/min | 140.5 (40.0) | 140.8 (46.8) | 0.972 | |
| HRmin, mean (SD), beats/min | 55.7 (11.5) | 54.4 (14.8) | 0.623 | |
| HRmean, mean (SD), beats/min | 85.8 (16.9) | 86.0 (20.7) | 0.970 | |
| Ablation Strategy, no. (%) | ||||
| PVI only | 53 (46.9) | 20 (46.5) | 0.913 | |
| PVI+line | 48 (42.5) | 18 (41.9) | 0.827 | |
| PVI+CAFE | 5 (4.4) | 3 (7.0) | 0.114 | |
| PVI+Line+CAFE | 7 (6.2) | 2 (4.6) | NS | |
| Recurrence of AF, no. (%) | 42 (37.2) | 22 (51.2) | 0.112 | |
| Prevalent AF, no. (%) | 62 (54.9) | 16 (37.2) | 0.49 (0.24–1.00) | 0.051 |
| Prevalent HF, no. (%) | 6 (5.3) | 8 (18.6) | 0.24 (0.08–0.76) | 0.014 |
| Concomitant AF and HF, no. (%) | 45 (39.8) | 18 (41.9) | 0.817 | |
| All cause hospitalization, no. (%) | 25 (23.8) | 27 (62.8) | 2.09 (1.40–3.42) | <0.001 |
| All cause death, no. (%) | 0 (0) | 0 (0) | – | NS |
AF, atrial fibrillation; HF, heart failure; PVI, pulmonary vein isolation; CAFE, complex fractionated atrial electrograms; HR, heart rate; LVD, left ventricular diameter; LAD, left atrial diameter; LVEF, left ventricular ejection fraction; prevalent AF, existing AF and new-onset HF; prevalent HF, existing HF and new-onset AF; NS, no significant.