Table 2 Hemodynamic measurements
From: Prediction of volume response under open-chest conditions during coronary artery bypass surgery
Induction of anesthesia | After sternotomy | ||||
|---|---|---|---|---|---|
Mean | SD | Mean | SD | P value | |
Heart rate, L/minute | 66 | 12 | 70 | 17 | 0.02 |
Mean arterial blood pressure, mm Hg | 72 | 12 | 73 | 14 | 0.61 |
Mean pulmonary artery blood pressure, mm Hg | 22 | 4 | 22 | 8 | 0.98 |
Central venous pressure, mm Hg | 12 | 4 | 9 | 4 | <0.01 |
Pulmonary capillary wedge pressure, mm Hg | 13 | 4 | 12 | 4 | 0.19 |
Cardiac index, L/minute per m2 | 2.16 | 0.34 | 3.06 | 0.76 | <0.01 |
Stroke volume index, mL/m2 | 33.4 | 6.3 | 44.2 | 9.4 | <0.01 |
Systemic vascular resistance, dyn/second per cm-5 | 1,126 | 240 | 877 | 312 | <0.01 |
Pulmonary vascular resistance, dyn/second per cm-5 | 156 | 72 | 118 | 57 | <0.01 |
Global end-diastolic volume index, mL/m2 | 615 | 99 | 648 | 106 | 0.04 |
Stroke volume variation, percentage | 16 | 8 | 10 | 5 | <0.01 |
Pulse pressure variation, percentage | 15 | 7 | 9 | 5 | <0.01 |