Table 2.
Hemodynamic in patients with and without post-CPB left ventricular dysfunction
| No LV dysfunction (n = 56) | With LV dysfunction (n = 38) | P value | |
|---|---|---|---|
| Mean Arterial Pressure, mmHg | |||
| Before CPB (10 minutes) | 93 (12) | 90 (15) | 0.847 |
| After CPB (10 minutes) | 82 (14) | 68 (16)* | 0.012 |
| Heart Rate, b/min | |||
| Before CPB (10 minutes) | 70 (8) | 73 (9) | 0.912 |
| After CPB (10 minutes) | 78 (13) | 82(14) | 0.634 |
| Central Venous Pressure, cm H2O | |||
| Before CPB (10 minutes) | 6 (3) | 7 (4) | 0.879 |
| After CPB (10 minutes) | 8 (4) | 9 (5) | 0.953 |
| Cardiac Index, L/min/m2 | |||
| Before CPB (10 minutes) | 2.4 (1.0) | 2.2 (1.3) | 0.597 |
| After CPB (10 minutes) | 3.6 (1.3) | 2.1 (0.9)* | < 0.001 |
LV, left ventricular; CPB, cardiopulmonary bypass.
*P < 0.05, between the two groups; χ2 test with Yates correction or unpaired Student t test.