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Table 1 Mean and standard deviation of cardiac index (CI), mean arterial blood pressure (MAP), heart rate (HR) and pulmonary artery pressure (PAP), central venous oxygen saturation (SV̄̀O2) and oxygen extraction ratio (O2ER) at different arterial oxygen saturation values (SaO2) in anesthetized horses during controlled hypoxemia

From: Effects of controlled hypoxemia or hypovolemia on global and intestinal oxygenation and perfusion in isoflurane anesthetized horses receiving an alpha-2-agonist infusion

  SaO2 (%)
  95 ± 2 90 ± 2 85 ± 2 80 ± 2 75 ± 2 70 ± 2 65 ± 2
CI (ml/kg/min) 61 ± 16 62 ± 15 63 ± 16 61 ± 11 67 ± 14 73 ± 18 75 ± 13 a
MAP (mmHg) 72 ± 9 75 ± 8 76 ± 12 77 ± 11 76 ± 10 75 ± 11 78 ± 9
HR (beats/min) 30 ± 2 30 ± 3 31 ± 5 31 ± 4 33 ± 6 37 ± 6 a 42 ± 8 a
PAP (mmHg) 16 ± 4 18 ± 3 20 ± 3 21 ± 4 22 ± 4 23 ± 5 25 ± 6
SV̄̀O2
(%)
74 ± 2 67 ± 4 61 ± 2 a 57 ± 3 a 55 ± 3 a 53 ± 2 a 49 ± 4 a
O2ER
(%)
21 ± 2 23 ± 2 26 ± 2 a 29 ± 3 a 25 ± 3 25 ± 2 22 ± 4
  1. aStatistically significant different from baseline (SaO2 95%)