Table 5.
Subgroup analysis of older age (> 70 years) and high stroke risk (CHA2DS2-VASc-socre ≥ 3) in the LAA-amputation group and the control group
| LAA-amputation | Control group | |||||||
|---|---|---|---|---|---|---|---|---|
| SR [n (%)] | POAF [n (%)] | HR [95% CI] | p value | SR [n (%)] | POAF [n (%)] | HR [95% CI] | p value | |
| Age | ||||||||
| Age ≤ 70 | 84 | 26 | 75 | 27 | ||||
| Composite endpoint | 17 (20.2) | 7 (26.9) | 1.7 [0.69; 4.26] | 0.25 | 12 (16.0) | 7 (25.9) | 1.3 [0.50; 3.42] | 0.58 |
| All-cause mortality | 7 (8.3) | 3 (11.5) | 1.6 [0.39; 6.35] | 0.52 | 5 (6.7) | 3 (11.1) | 1.4 [0.32; 5.76] | 0.67 |
| Stroke | 2 (2.4) | 2 (7.7) | 3.2 [0.44; 22.49] | 0.25 | 3 (4.0) | 2 (7.4) | 1.6 [0.25; 10.03] | 0.63 |
| Rehospitalization | 9 (10.7) | 4 (15.4) | 1.8 [0.52; 6.06] | 0.36 | 5 (6.7) | 3 (11.1) | 1.6 [0.38; 7.03] | 0.51 |
| Age > 70 | 84 | 49 | 87 | 54 | ||||
| Composite endpoint | 22 (26.2) | 13 (26.5) | 1.0 [0.47; 1.90] | 0.89 | 16 (18.4) | 19 (35.2) | 2.3 [1.18; 4.50] | 0.015 |
| All-cause mortality | 17 (20.2) | 12 (24.5) | 1.1 [0.53; 2.43] | 0.75 | 8 (9.2) | 14 (25.9) | 3.1 [1.28; 7.32] | 0.012 |
| Stroke | 2 (2.4) | 1 (2.0) | 0.7 [0.07; 8.13] | 0.80 | 7 (8.1) | 5 (9.3) | 1.4 [0.44; 4.47] | 0.57 |
| Rehospitalization | 3 (3.6) | 2 (4.1) | 1.0 [0.15; 6.06] | 0.96 | 2 (2.3) | 6 (11.1) | 5.4 [1.09; 26.97] | 0.039 |
| Stroke risk | ||||||||
| CHA2DS2-VASc-score < 3 | 53 | 29 | 68 | 26 | ||||
| Composite endpoint | 5 (9.4) | 4 (13.8) | 1.5 [0.41; 5.84] | 0.53 | 10 (14.7) | 4 (15.4) | 0.8 [0.25; 2.77] | 0.76 |
| All-cause mortality | 1 (1.9) | 3 (10.3) | 5.0 [0.5; 48.77] | 0.17 | 3 (4.4) | 3 (11.5) | 2.4 [0.48; 12.4] | 0.29 |
| Stroke | 1 (1.9) | 1 (3.5) | 2.1 [0.13; 34.73] | 0.59 | 3 (4.4) | 0 (0.0) | < 0.1 [0; 1007.26] | 0.50 |
| Rehospitalization | 3 (5.7) | 1 (3.5) | 0.8 [0.08; 7.75] | 0.84 | 4 (5.9) | 1 (3.9) | 0.5 [0.06; 5.03] | 0.59 |
| CHA2DS2-VASc-score ≥ 3 | 115 | 46 | 94 | 55 | ||||
| Composite endpoint | 34 (29.6) | 16 (34.8) | 1.2 [0.63; 2.15] | 0.62 | 18 (19.2) | 22 (40.0) | 2.4 [1.27; 4.49] | 0.007 |
| All-cause mortality | 23 (20.0) | 12 (26.1) | 1.2 [0.57; 2.46] | 0.65 | 10 (10.6) | 14 (25.5) | 2.5 [1.10; 5.66] | 0.028 |
| Stroke | 3 (2.6) | 2 (4.4) | 1.7 [0.28; 10.53] | 0.56 | 7 (7.5) | 7 (12.7) | 1.9 [0.66; 5.57] | 0.24 |
| Rehospitalization | 9 (7.8) | 5 (10.9) | 1.4 [0.45; 4.31] | 0.56 | 3 (3.2) | 8 (14.6) | 5.2 [1.38; 19.81] | 0.015 |
HR hazard ratio, POAF perioperative atrial fibrillation, SR sinus rhythm
Bold value indicates p-values < 0.05 were considered statistically significant