Related Experiment Video
Updated: Aug 23, 2026

Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management
Published on: November 21, 2017
Thermal injuries in three children caused by an electrical warming mattress
D J Dewar1, J F Fraser, K L Choo
1Department of Paediatrics and Child Health, University of Queensland, Royal Children's Hospital, Brisbane, Queensland 4029, Australia.
Insights
Peroperative hypothermia poses risks, especially in pediatric anesthesia. Malfunctioning electrical heating mats caused severe thermal injuries in three children, highlighting rare but serious device-related risks.
Area of Science:
- Pediatric Anesthesiology
- Medical Device Safety
Background:
- Peroperative hypothermia increases mortality and morbidity.
- Pediatric patients, especially infants, have a higher surface-area-to-volume ratio, increasing heat loss risks.
- Maintaining normothermia during surgery is crucial for pediatric patients.
Observation:
- Three pediatric patients on a single operating list sustained severe thermal injuries.
- The injuries were caused by a malfunctioning electrical heating mat.
- Appropriate use and monitoring by the anesthesiologist were in place.
Findings:
- Electrical heating mats, despite their intended use for warming, can cause severe thermal injuries.
- Device malfunction is a rare but significant cause of iatrogenic injury in pediatric surgery.
- The specific physiological characteristics of pediatric patients may exacerbate thermal injury severity.
Implications:
- There is a need to review the safety and manufacturing standards of electrical heating mats.
- Modifications to heating device design may be necessary to prevent future injuries.
- Anesthesiologists must remain vigilant for potential equipment failures, even with standard monitoring.
Abstract:
Peroperative hypothermia is recognized to increase mortality and morbidity, and the paediatric anaesthetist faces specific challenges resulting from the increased body surface to volume ratio, particularly in smaller children. We describe three children who were consecutive patients on one operating list and sustained severe thermal injuries. These were due to a malfunctioning electrical heating mat, despite appropriate use and monitoring by the attending anaesthetist. It is rare for thermal warming devices to cause injury. We review the use of heating mats, and suggest modifications in their manufacture which may minimize the risks associated with heating devices.
Related Concept Videos
Burn Injuries
The damage results in the death of skin cells, which can lead to a massive loss of fluid. Dehydration, electrolyte imbalance, and renal and circulatory failure follow, which can be fatal. Burn patients are treated with intravenous fluids to offset...
Decreased Body Temperature
Methods of reducing fever
Pharmacological Methods of Reducing Fever:
Increased Body Temperature
Homeostatic Imbalances in Body Temperature
Temperature Measurement Sites
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...

