TABLE 1.
Cardiopulmonary Profiles in 28 Patients Undergoing Venous Bypass Without Anticoagulation
| Variable* | Before Bypass | Bypass | P† | ||
|---|---|---|---|---|---|
| Mean | SD | Mean | SD | ||
| T (°C) | 34.9 | .98 | 33.8 | 1.16 | 0.0002 |
| HR (bpm) | 85.6 | 14.3 | 84.1 | 14.2 | |
| MAP(mmHg) | 75 | 17.1 | 83 | 17.6 | |
| PAO (torr) | 12.0 | 4.2 | 10.5 | 3.3 | |
| CVP(mmHg) | 9.9 | 4.4 | 9.2 | 4.9 | |
| pCO2 (torr) | 33.3 | 5.2 | 29.9 | 4.8 | 0.0125 |
| PO2 (torr) | 380 | 92.4 | 398 | 91.6 | |
| SaO2 | 0.9854 | 0.0915 | 0.9896 | 0.0160 | |
| PvO2 (torr) | 65.5 | 16.3 | 70.8 | 21.5 | |
| SvO2 (torr) | 0.904 | 0.0598 | 0.927 | 0.0496 | |
| Hb(g/dl) | 9.62 | 1.16 | 10.2 | 1.42 | |
| pHa | 7.42 | 0.07 | 7.40 | 0.08 | |
| CI (liters/min-m2) | 4.37 | 1.44 | 3.44 | 1.09 | 0.0079 |
| SI | 51.7 | 15.9 | 41.4 | 13.6 | 0.0121 |
| RVSWI | 5.11 | 3.21 | 3.52 | 3.17 | |
| LVSWI | 43.4 | 14.3 | 39.7 | 11.4 | |
| SVRI | 443.7 | 233 | 660 | 366 | 0.0109 |
| PVRI | 34.3 | 23.9 | 44.1 | 39.1 | |
| avDO2 | 2.04 | .81 | 1.87 | .59 | |
| VO2/m2 | 83.0 | 24.7 | 61.7 | 20.5 | 0.0009 |
| O2 transport | 1087 | 391 | 917 | 342 | |
*
T: temperature; HR: heart rate; MAP: mean arterial pressure; PAO: pulmonary arterial wedge pressure; CVP: central venous pressure; pCO2: partial pressure of carbon dioxide; pO2: partial pressure of oxygen; SaO2: arterial oxygen saturation; PvO2: mixed venous oxygen pressure; SvO2: oxygen saturation pulmonary artery; Hb: hemoglobin; pHa: arterial pH; CI: carciad index; SI: saturation index; RVSWI: right ventricular stroke work index; LVSWI: left ventricular stroke work index; SVRI: systemic vascular resistance index; PVRI: pulmonary vascular resistance index; avDO2: arteriovenous oxygen content difference; VO2/m2: oxygen consumption.
†
Paired t test.