Preventing Inadvertent Hypothermia in Paediatric Neurosurgery in Malawi

The investigators wish to undertake a randomized controlled non-inferiority trial to evaluate the ability of a simple and low-cost method (Hibler´s method of wrapping the patient in multiple insulating layers) to prevent intraoperative heat-loss in children undergoing neurosurgery under anesthesia in Malawi. The control group will be heated actively with the use of warm-air blankets. The aim of this study is to evaluate whether Hibler´s method can provide a cheap and technically simple way of adequately preserving the patients´ core temperature in the operating theatre in a resource-poor setting.