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Table 3 Hemodynamic and physiologic status on admission to ICU and 24 hours later

From: Goal-directed fluid management based on pulse pressure variation monitoring during high-risk surgery: a pilot randomized controlled trial

Status Group
  C (n = 16) I (n = 17)
On admission to ICU   
   Mean arterial pressure (mmHg) 66 ± 20 80 ± 18a
   Heart rate (/min) 90 ± 18 85 ± 20
   SpO2 (percentage) 96 ± 4 96 ± 2
   Lactate (mmol/l) 1.5 ± 1.1 1.1 ± 0.8
At 24 h after admission to ICU   
   Mean arterial pressure (mmHg) 80 ± 12 82 ± 11
   Heart rate (/min) 92 ± 21 85 ± 18
   SpO2 (%) 97 ± 3 95 ± 3
   Vasoactive support (n) 8 2a
   Lactate (mmol/l) 1.9 ± 1.1 0.7 ± 0.8b
   Mean lactate over 24 h (mmol/l) 2.4 ± 1.1 1.2 ± 0.4c
  1. ICU, intensive care unit; SpO2, percutaneous arterial oxygen saturation; C, control; I, intervention. aP < 0.05, bP < 0.01, cP < 0.001, control group versus intervention group.