Baseline clinical and echocardiographic characteristics
| Before matching | After matching | |||||
|---|---|---|---|---|---|---|
| Early discharge (n=107) | Late discharge (n=358) | p Value | Early discharge (n=89) | Late discharge (n=178) | p Value | |
| Clinical variables | ||||||
| Age, years | 79.5±9.9 | 80.9±5.3 | 0.046 | 81.1±4.9 | 80.7±5.7 | 0.567 |
| Female gender | 53 (49.5) | 223 (62.3) | 0.018 | 50 (56.2) | 50 (59.2) | 0.598 |
| Diabetes mellitus | 26 (24.3) | 106 (29.6) | 0.285 | 22 (24.7) | 53 (29.8) | 0.386 |
| Permanent AF | 11 (10.3) | 52 (14.6) | 0.256 | 9 (10.1) | 29 (16.3) | 0.173 |
| Prior myocardial infarction | 17 (15.9) | 52 (14.5) | 0.728 | 13 (14.6) | 29 (16.3) | 0.721 |
| Prior stroke | 3 (2.8) | 22 (6.1) | 0.179 | 3 (3.4) | 10 (5.6) | 0.317 |
| Prior CABG | 11 (10.3) | 38 (10.6) | 0.921 | 9 (10.1) | 19 (10.7) | 0.888 |
| Prior PCI | 25 (23.4) | 94 (26.3) | 0.547 | 17 (19.1) | 43 (24.2) | 0.351 |
| Prior BAV | 22 (20.6) | 135 (37.8) | 0.001 | 21 (23.6) | 33 (18.5) | 0.332 |
| PVD | 9 (8.4) | 21 (5.9) | 0.347 | 5 (5.6) | 10 (5.6) | 1.000 |
| COPD | 32 (29.9) | 110 (30.7) | 0.872 | 20 (22.5) | 56 (31.5) | 0.125 |
| CRF* | 38 (35.5) | 97 (27.1) | 0.092 | 26 (29.2) | 53 (29.8) | 0.924 |
| Prior PPM | 17 (15.9) | 26 (7.3) | 0.007 | 9 (10.1) | 12 (6.7) | 0.335 |
| Prior LBBB | 4 (3.8) | 26 (7.3) | 0.193 | 4 (4.5) | 16 (9.1) | 0.188 |
| Prior RBBB | 11 (10.6) | 27 (7.8) | 0.372 | 8 (9.3) | 18 (10.5) | 0.770 |
| NYHA IV | 2 (1.9) | 30 (8.5) | 0.019 | 2 (2.2) | 4 (2.2) | 1.000 |
| STS score, % | 5.7±4.0 | 6.6±4.7 | 0.058 | 6.0±4.2 | 6.5±4.5 | 0.420 |
| Propensity score, n | 28.4±12.6 | 21.1±10.4 | <0.001 | 24.6±8.6 | 24.9±8.6 | 0.810 |
| Echocardiographic variables | ||||||
| LV-EF, % | 51.2±12.5 | 51.9±12.5 | 0.614 | 51.9±11.5 | 51.8±12.9 | 0.935 |
| Mean aortic gradient, mm Hg | 50.0±14.9 | 52.3±15.1 | 0.169 | 51.2±15.2 | 52.5±15.0 | 0.491 |
Values are n (%) or mean±SD. Continuous parametric variables were compared using Student's t test. Continuous non-parametric variables were compared using Mann–Whitney U test. Categorical variables were compared using the McNemar's exact test.
*Defined as glomerular filtration rate (GFR) less than 60 mL/min.
AF, atrial Fibrillation; BAV, balloon aortic valvuloplasty; CABG, coronary artery bypass graft; COPD, chronic obstructive pulmonary disease; CRF, chronic renal failure; LBBB, left bundle branch block; NYHA, New York Heart Association; PCI, percutaneous coronary intervention; PPM, permanent pacemaker; PVD, peripheral vascular disease; RBBB, right bundle branch block; STS, Society of Thoracic Surgery.