The Effects of Warming Intravenous Fluid on Perioperative Hemodynamic Status, Postoperative Shivering and Recovery in Orthopedic Surgery.

Postoperative hypothermia is stressfull by elevating blood pressure and heart rate. This study evaluated the effects of warming IV fluid on perioperative hemodynamic status. Perioperative hemodynamic parameters measured in 60 patients undergoing orthopedic surgery divided in two groups according to intraoperative IV fluid temperature. Core and skin temperature of two groups decreased during surgery but reduced more in hypothermia group (P< 0.005). Postopertive mean arterial blood pressure increased more in hypothermia group versus normothermic group (p< 0.005). Shivering observed in 21 of 30 hypothermia and 11 of 30 normothermia group (p< 0.005) and recovery time was lower in normothermic group (36±5 vs. 26±3 min, p< 0.005). It was concluded that intraoperative IV fluid warming reduces perioperative changes of hemodynamic parameters