Table 2. Summary of the surgical parameters of the study subjects.
| The prior ASA group (n=62) | The primary myectomy group (n=124) | P value | |
|---|---|---|---|
| Cardiopulmonary bypass time (min) | 98.4±37.2 | 116.5±53.1 | 0.1 |
| Aortic cross-clamp time (min) | 64.4±23.3 | 78.2±39.7 | 0.1 |
| Concomitant procedures, n (%) | |||
| Coronary artery bypass graft | 9 (14.5) | 6 (4.8) | 0.041* |
| Repair of myocardial bridging of the coronary artery | 3 (4.8) | 10 (8.1) | 0.549 |
| Mitral valvuloplasty | 5 (8.1) | 22 (17.7) | 0.083 |
| Mitral valve replacement | 2 (3.2) | 1 (0.8) | 0.258 |
| Cox maze procedure | 5 (8.1) | 6 (4.8) | 0.51 |
| Aortic valve replacement | 0 (0.0) | 1 (0.8) | 1 |
| Time on ventilator (h) | 16.2±3.4 | 19.6±7.0 | 0.01* |
| ICU stay (h) | 45.1±29.9 | 59.0±28.5 | 0.02* |
| Postoperative hospital stay (day) | 8.8±5.2 | 8.8±6.2 | 0.9 |
| New complete AVB, n (%) | 6 (9.7) | 2 (1.6) | 0.01* |
| Postoperative PPM implantations, n (%) | 6 (9.7) | 2 (1.6) | 0.01* |
| Operative mortality, n (%) | 2 (3.2) | 1 (0.8) | 0.2 |
Values are presented as the means ± SD, medians (IQR) or n (%). *, P<0.05 versus the prior ASA group. ASA, alcohol septal ablation; ICU, intensive care unit; AVB, atrioventricular block; PPM, permanent pacemaker.