Table 2.
Mortality, Operative Times and Post-Operative Hemodynamics by BMI Group.
| BMI <22 (n=49) | BMI 22-30 (n=201) | BMI 30-40 (n=175) | BMI >40 (n=51) | p-value | |
|---|---|---|---|---|---|
| In-Hospital Mortality, n (%) | 0 (0%) | 3 (1.5%) | 1 (0.6%) | 0 (0%) | |
| Operative Times | |||||
| Circulatory Arrest (minutes) | 48.29 ± 15.9 | 46.97 ± 18.9 | 43.38 ± 16.7 | 40.20 ±15.8 | 0.014 |
| Total cardiopulmonary bypass (minutes) | 250.80 ± 50.9 | 260.42 ± 35.6 | 268.32 ± 35.2 | 268.61 ± 32.2 | 0.012 |
| Post-operative Hemodynamics | |||||
| Right Atrial Pressure (mmHg) | 8.12 ± 4.1 | 8.40 ± 3.7 | 8.89 ± 3.4 | 10.17 ± 3.2 | 0.012 |
| Mean PA Pressure (mmHg) | 24.04 ± 4.1 | 24.51 ± 7.4 | 24.11 ± 6.8 | 25.51 ± 5.1 | 0.664 |
| Cardiac Output (L/min) | 5.01 ± 1.4 | 5.43 ± 1.3 | 5.99 ± 1.3 | 6.14 ± 1.3 | <0.001 |
| Cardiac Index (L/min/m^2) | 2.94 ± 0.7 | 2.81 ± 0.6 | 2.78 ± 0.5 | 2.76 ± 0.6 | 0.379 |
| PVR (dyn·s/cm5) | 290.16 ± 180.8 | 257.76 ± 121.2 | 220.24 ± 109.1 | 218.22 ± 81.1 | <0.001 |
| Delta PVR | 483.26 ± 347.9 | 510.88 ± 355.8 | 360.85 ± 266.9 | 356.29 ± 254.7 | <0.001 |
| PVRi (dyn·s/cm5/m^2) | 170.42 ± 114.4 | 136.05 ± 72.2 | 104.46 ± 59.6 | 96.89 ± 39.4 | <0.001 |
| Total pulmonary resistance | 416.45 ± 211.6 | 383.67 ± 155.3 | 338.23 ± 137.0 | 348.25 ± 107.9 | 0.002 |
| Delta TPR | 566.17 ± 390.1 | 602.19 ± 406.0 | 460.58 ± 324.3 | 429.17 ± 304.2 | 0.001 |
| Jamieson Type III | 18 (36.7%) | 57 (28.4%) | 39 (22.3%) | 10 (19.6%) | 0.119 |