Table 2. Comparison of operative variables before and after matching.
| Characteristics | Overall cohort | PSM cohort | |||||
|---|---|---|---|---|---|---|---|
| Normotension (n=220) | Hypertension (n=492) | P value | Normotension (n=128) | Hypertension (n=128) | P value | ||
| TAR (%) | 117 (53.2) | 254 (51.6) | 0.701 | 63 (49.2) | 72 (56.3) | 0.260 | |
| CABG/MVR/MVP/TVP (%) | 26 (11.8) | 42 (8.5) | 0.169 | 17 (13.3) | 13 (10.2) | 0.437 | |
| Aortic valve (%) | 108 (49.1) | 108 (22.0) | <0.001 | 58 (45.3) | 29 (22.7) | <0.001 | |
| CPB time (min) | 245.3±66.5 | 239.5±68.9 | 0.296 | 238.0±62.7 | 243.7±79.0 | 0.522 | |
| Posterior parallel circulation time (min) | 51.4±28.4 | 58.1±34.4 | 0.008 | 48.5±21.1 | 54.2±25.1 | 0.055 | |
| Aortic cross-clamp time (min) | 176.0±56.7 | 165.1±58.6 | 0.021 | 171.4±55.7 | 171.2±66.6 | 0.976 | |
| DHCA time (min) | 26.9±13.4 | 29.0±12.4 | 0.046 | 26.9±13.4 | 28.7±12.6 | 0.286 | |
Data presented as n (%); mean ± standard deviation. PSM, propensity score matching; TAR, total arch replacement; CABG, coronary artery bypass graft; MVR, mitral valve replacement; MVP, mitral valvuloplasty; TVP, tricuspid valvuloplasty; CPB, cardiopulmonary bypass; DHCA, hypothermic circulatory arrest.