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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
  1. SD, standard deviation.