Table 1.
Baseline characteristics
| Characteristic | All Patients n=519 | Any Complication |
||
|---|---|---|---|---|
| Yes n=254 | No n=265 | p-value | ||
| Age (years) | 83.4±7.5 | 84.1±7.3 | 82.8±7.6 | 0.053 |
| Female | 47 | 52 | 41 | 0.010 |
| Prior bypass surgery | 39 | 32 | 46 | 0.002 |
| Prior angioplasty | 31 | 28 | 34 | 0.12 |
| Peripheral vascular disease | 39 | 42 | 37 | 0.22 |
| Creatinine (mg/dL) | 1.30±0.48 | 1.31±0.49 | 1.28±0.47 | 0.54 |
| Renal disease (Cr ≥2) | 19 | 21 | 17 | 0.22 |
| Ejection fraction (%) | 52.9±13.7 | 53.7±14.0 | 52.2±13.3 | 0.35 |
| Ejection fraction <40% | 17 | 17 | 17 | 0.98 |
| Oxygen-dep. lung disease | 13 | 14 | 13 | 0.56 |
| Body mass index (kg/m2) | 27.1±7.2 | 26.9±7.1 | 27.3±7.4 | 0.50 |
| Body mass index <20 kg/m2 | 10 | 11 | 9 | 0.65 |
| Diabetes mellitus | 39 | 38 | 40 | 0.67 |
| Major arrhythmia | 48 | 50 | 46 | 0.41 |
| Hemoglobin (mg/dL) | 11.7±1.6 | 11.5±1.5 | 11.8±1.6 | 0.026 |
| Systolic BP (mmHg) | 127.3±22.0 | 128.4±22.1 | 126.3±21.9 | 0.28 |
| Mini Mental Status Exam (points) | 26.8±3.4 | 26.8±3.4 | 26.8±3.4 | 0.98 |
| 6MWT attempted | 57 | 52 | 62 | 0.035 |
| 6MWT distance (m) | 156.6±109.4 | 153.1±98.0 | 159.4±117.9 | 0.63 |
| NYHA class | 0.17 | |||
| 2 | 6 | 8 | 5 | |
| 3 | 44 | 42 | 46 | |
| 4 | 50 | 50 | 49 | |
| Mean AV gradient (mmHg) | 43.5±14.8 | 43.9±15.1 | 43.1±14.5 | 0.53 |
| Aortic valve area (cm2) | 0.65±0.19 | 0.64±0.18 | 0.66±0.20 | 0.26 |
| STS Predicted Mortality (%) | 11.6±4.3 | 11.9±4.8 | 11.4±3.8 | 0.17 |
| Cohort A | 66 | 57 | 76 | <0.001 |
| Transfemoral approach | 80 | 81 | 80 | 0.84 |
Values are expressed as mean ± SD or %.