Fig. 2. Changes in the rectal temperatures (top ), esophageal–tympanic temperatures (middle ), and vasoconstriction index (bottom ) during the perioperative period. Data represent individual temperature points for patients in each study group. Numbers on the horizontal axes represent different time points when the presented data were recorded: 0 = preoperative period (in holding room); 1 = operating room baseline (after induction and positioning); 2 = incision; 3 = 1 h after incision; 4 = closing; 5 = after arrival to recovery room or intensive care unit; 6 = 1 h postoperatively; 7 = 2 h postoperatively.