Table 1.
Patient characteristics
| Patient characteristics | Low AF risk, N = 111 | High AF risk, N = 52 | Manifest AF, N = 37 | p |
|---|---|---|---|---|
| Age (years) | 65 ± 14 | 80 ± 8 | 80 ± 12 | < 0.001 |
| Sex, female | 39 (35) | 22 (42) | 19 (51) | 0.202 |
| Current smoking | 20 (18) | 1 (2) | 3 (8) | 0.009 |
| Hypertension | 70 (63) | 42 (81) | 33 (89) | 0.003 |
| Diabetes | 15 (13) | 12 (23) | 8 (22) | 0.249 |
| Dyslipidemia | 44 (40) | 17 (33) | 10 (27) | 0.338 |
| Previous AF/PAF diagnosis | 6 (5) | 7 (13) | 5 (13) | 0.140 |
| Antiarrhythmic drugs | 24 (22) | 22 (42) | 18 (50) | 0.001 |
| CHA2-DS2-Vasc | ||||
| Median | 4.5 | 5 | 6 | |
| 25th percentile | 3 | 5 | 5 | < 0.001 |
| 75th percentile | 6 | 6 | 6 | |
| NIHSS | 4 ± 5 | 5 ± 6 | 11 ± 8 | 0.009 |
| QTc (ms) | 430 ± 34 | 448 ± 29 | 462 ± 33 | < 0.001 |
| Thrombolysis | 17 (15) | 6 (12) | 12 (33) | 0.023 |
| Left atrial volume | ||||
| Normal (< 40 mL/m2) | 65 (59) | 21 (40) | 4 (11) | |
| Enlarged (40–45 mL/m2) | 11 (10) | 7 (13) | 4 (11) | < 0.001 |
| Severely enlarged (> 45 mL/m2) | 8 (7) | 13 (25) | 15 (41) | |
| Not available | 27 (24) | 11 (21) | 14 (38) | |
| Left atrial diameter | ||||
| Normal (< 39 mm) | 33 (30) | 12 (29) | 3 (8) | 0.095 |
| Enlarged (39–50 mm) | 40 (36) | 19 (45) | 15 (41) | |
| Severely enlarged (> 50 mm) | 5 (5) | 5 (12) | 4 (11) | |
| Not available | 33 (30) | 6 (14) | 15 (41) | |
| Final heart rhythm | ||||
| Sinus rhythm | 110 (99) | 32 (61.5) | 0 | |
| PAF | 1 (1) | 20 (38.5) | 12 (32) | < 0.001 |
| Permanent/persistent AF | 0 | 0 | 25 (68) | |