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Table 2 Resting parameters

From: Microcirculatory alterations induced by sedation in intensive care patients. Effects of midazolam alone and in association with sufentanil

  NS period H period HS period
MAP (mm Hg) 94 ± 3 84 ± 4a 81 ± 4a
HR (beats per minute) 83 ± 6 81 ± 5 78 ± 5
CO (litres/minute) 5.38 ± 0.82 5.27 ± 0.82 5.33 ± 1.08
SpO2 (percentage) 96.4 ± 0.5 96.7 ± 0.5 96.1 ± 0.5
tcPO2 (mm Hg) 67 ± 6 61 ± 6 61 ± 7
tcPCO2 (mm Hg) 45 ± 2 44 ± 4 42 ± 4
Φrest (PU) 150 ± 22 207 ± 25a 205 ± 25a
CMBC (CU) 145 ± 15 152 ± 16 155 ± 15
Velocity (VU) 1.06 ± 0.11 1.39 ± 0.15a 1.37 ± 0.79a
  1. ap < 0.05 versus NS period. Φrest, mean blood flow at rest; CMBC, concentration of moving blood cells in concentration units (CU); CO, cardiac output; H period, set of measurements obtained when the patients were sedated by midazolam; HR, heart rate; HS period, set of measurements obtained when the patients were sedated by midazolam and sufentanil; MAP, mean arterial pressure; NS period, set of measurements obtained when the patients were non-sedated; PU, perfusion units; SpO2, percutaneous oxygen saturation; tcPCO2, transcutaneous carbon dioxide pressure; tcPO2, transcutaneous oxygen pressure; velocity expressed in velocity units (VU), Φrest (perfusion units)/CMBC.