Related Experiment Videos
Convective warming blankets improve peroperative heat preservation in congenital heart surgery
L Schlünzen1, A L Vestergaard, I Møller-Nielsen
1Department of Anaesthesiology, Skejby Sygehus, Aarhus University Hospital, Denmark.
Insights
Convective warming blankets significantly improve patient temperature after pediatric heart surgery. This method aids in maintaining core and peripheral temperatures, enhancing recovery post-cardiopulmonary bypass.
Area of Science:
- Anesthesiology
- Pediatric Cardiac Surgery
- Thermoregulation
Background:
- Maintaining patient temperature during pediatric cardiac surgery is challenging.
- Hypothermic cardiopulmonary bypass (CPB) can lead to significant heat loss.
- Effective peroperative heat preservation is crucial for patient outcomes.
Purpose of the Study:
- To evaluate the efficacy of a convective heating system for peroperative heat preservation in children undergoing congenital heart surgery.
- To compare temperature changes between conventional rewarming and the addition of convective warming blankets.
Main Methods:
- A prospective study involving 50 children undergoing congenital heart surgery.
- Group 1 (n=25): Rewarmed with CPB and a heating mattress.
- Group 2 (n=25): Rewarmed with CPB, heating mattress, and convective warming blankets.
- Central and peripheral temperatures were monitored throughout the perioperative period.
Main Results:
- During bypass, peripheral temperatures were lower in Group 2, with no significant difference in central temperatures.
- No significant temperature differences were observed between groups at the end of bypass.
- At the end of the operation, both central and peripheral temperatures were significantly higher in Group 2.
Conclusions:
- Convective warming blankets are effective in maintaining and increasing patient temperature following congenital heart surgery.
- This method offers a significant benefit for thermoregulation in pediatric cardiac surgery patients.
- Convective warming blankets represent a valuable adjunct for improving heat preservation during and after CPB.
Abstract:
Peroperative heat preservation, following hypothermic cardiopulmonary bypass (CPB) in children, has always been a challenge to the anaesthetist. We studied the efficiency of a convective heating system on peroperative heat preservation in 50 children undergoing congenital heart surgery. Twenty-five children, rewarmed by CPB and heating mattress, were randomly selected (Group 1). Another 25 children, rewarmed by CPB, heating mattress and convective warming blankets in addition (Group 2), were selected so the two groups were comparable regarding age, weight and anaesthetic management. The central and peripheral temperatures were measured during bypass, at the end of bypass and at the end of operation. A retrospective evaluation showed that during bypass the peripheral temperature was significantly lower in Group 2 than in Group 1, with no significant difference in central temperature. At the end of bypass there was no significant difference between the two groups. At the end of operation the central and peripheral temperatures were significantly higher in Group 2. In conclusion convective warming blankets are effective in keeping or even raising the temperature following congenital heart surgery.