Fever frequently presents during recovery from traumatic brain injury
(TBI). Elevated body temperature may result from ensuing infection, th
rombophlebitis, drug reaction, or a defect in the central thermoregula
tory system such as seen in post-traumatic hyperthermia (PTH). Typical
ly, the diagnosis of PTH follows only after thorough investigation. Li
terature supports the theory that the febrile TBI patient, lacking a d
ocumented source, has central hyperthermia. The purpose of this study
was to determine the incidence of PTH in the acute rehabilitation sett
ing. We reviewed a consecutive series of 84 TBI patients participating
in a rehabilitation programme. Four per cent of the patients in this
study met our criteria for PTH. We describe a fever protocol that shou
ld aid the physician in diagnosis and treatment of the febrile TBI pat
ient. Proposed mechanisms involved in thermoregulation are discussed.