A randomised single blinded study of the administration of pre-warmed fluid vs active fluid warming on the incidence of peri-operative hypothermia in short surgical procedures

Anaesthesia. 2010 Sep;65(9):942-5. doi: 10.1111/j.1365-2044.2010.06473.x.


We compared the effect of delivering fluid warmed using two methods in 76 adult patients having short duration surgery. All patients received a litre of crystalloid delivered either at room temperature, warmed using an in-line warming device or pre-warmed in a warming cabinet for at least 8 h. The tympanic temperature of those receiving fluid at room temperature was 0.4 °C lower on arrival in recovery when compared with those receiving fluid from a warming cabinet (p = 0.008). Core temperature was below the hypothermic threshold of 36.0 °C in seven (14%) patients receiving either type of warm fluid, compared to eight (32%) patients receiving fluid at room temperature (p = 0.03). The administration of 1 l warmed fluid to patients having short duration general anaesthesia results in higher postoperative temperatures. Pre-warmed fluid, administered within 30 min of its removal from a warming cabinet, is as efficient at preventing peri-operative hypothermia as that delivered through an in-line warming system.

Publication types

  • Comparative Study
  • Randomized Controlled Trial

MeSH terms

  • Adult
  • Ambulatory Surgical Procedures
  • Anesthesia, General
  • Body Temperature
  • Female
  • Fluid Therapy / methods
  • Heating / methods*
  • Humans
  • Hypothermia / prevention & control*
  • Infusions, Intravenous
  • Intraoperative Care / methods*
  • Isotonic Solutions / administration & dosage*
  • Male
  • Middle Aged
  • Postoperative Complications / prevention & control
  • Rehydration Solutions / administration & dosage*
  • Ringer's Lactate
  • Single-Blind Method
  • Young Adult


  • Isotonic Solutions
  • Rehydration Solutions
  • Ringer's Lactate