Table 2. Hemodynamic parameters at baseline, and within 15 minutes and 60 minutes after transfusion.
P-values (Welch’s t-Test) indicate differences versus baseline within each group. Abbreviations: BL, baseline; CI, cardiac index; MAP, mean arterial pressure; PAP, pulmonary arterial pressure; PRBC, packed red blood cells; PVRI, pulmonary vascular resistance index; SVRI, systemic vascular resistance index.
| Fresh PRBCs | Standard-issue PRBCs | |||
|---|---|---|---|---|
| Time point | Parameter | P-value | Parameter | P-value |
| PAP (mmHg) | PAP (mmHg) | |||
| BL | 29±5 | 24±3 | ||
| 15 | 31±6 | 0.651 | 31±3 | 0.039 |
| 60 | 29±4 | 0.822 | 27±3 | 0.321 |
| PVRI (dyn·s·cm-5·m2) | PVRI (dyn·s·cm-5·m2) | |||
| BL | 394±144 | 257±101 | ||
| 15 | 390±162 | 0.989 | 407±169 | 0.276 |
| 60 | 428±187 | 0.923 | 303±120 | 0.879 |
| MAP (mmHg) | MAP (mmHg) | |||
| BL | 80±10 | 76±10 | ||
| 15 | 83±11 | 0.994 | 84±6 | 0.378 |
| 60 | 80±9 | 0.870 | 83±5 | 0.544 |
| SVRI (dyn·s·cm-5·m2) | SVRI (dyn·s·cm-5·m2) | |||
| BL | 2351±288 | 2349±1220 | ||
| 15 | 2374±310 | 0.991 | 2652±1203 | 0.844 |
| 60 | 2505±759 | 0.947 | 2470±1070 | 0.972 |
| CI (l/min/m2) | CI (l/min/m2) | |||
| BL | 2.9±0.3 | 3.3±1.5 | ||
| 15 | 2.9±0.3 | 0.967 | 3.1±1.2 | 0.988 |
| 60 | 2.8±0.5 | 0.942 | 3.3±1.3 | 0.944 |