External patient temperature control in emergency centres, trauma centres, intensive care units and operating theatres: a multi-society literature review.

Here we review the available literature supporting the routine and timely use of external patient warming devices of all possible types during emergency department and peri-operative situations, including the role of best ambient temperature, and provides a best-practice statement on the need for such devices. It aims to present a guideline document endorsed by the major South African professional societies in the field of emergency and peri-operative care.