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Heat illness in military populations: asking the right questions for research
  1. Mike Stacey1,2,
  2. D Woods3,
  3. D Ross4 and
  4. D Wilson3
  1. 1Section of Anaesthetics, Pain Medicine and Intensive Care, Imperial College, London, UK
  2. 2General Intensive Care Unit, Hammersmith Hospital, Greater London, UK
  3. 3Department of Military Medicine, Royal Centre for Defence Medicine, Birmingham, UK
  4. 4Army Health Unit, Army Medical Directorate, Camberley, UK
  1. Correspondence to Maj Mike Stacey, Section of Anaesthetics, Pain Medicine and Intensive Care, Imperial College or General Intensive Care Unit, Hammersmith Hospital, Du Cane Road, Greater London W120HS, UK; mikestacey23{at}gmail.com

Abstract

Reports of death and injury in military populations due to exertional heat illness (EHI) and its most severe form, exertional heat stroke, date from antiquity. Yet, understanding of why one soldier may succumb to EHI, while those around him do not, is incomplete. This paper sets out research questions in support of the health of military populations who may experience exertional heat stress. The mechanisms by which excess body heat arises and is dissipated are outlined and the significance of core temperature measurement during exercise is discussed. Known risk factors for EHI are highlighted and new approaches for identifying individual vulnerability to EHI are introduced. A better understanding of the underlying pathophysiology may allow the effective use of biomarkers in future risk stratification and identification of EHI, allied to emerging genetic technologies. The thermal burden associated with states of dress and personal protection of Service personnel in their worldwide duties should be a focus of research as new equipment is introduced. At all times, the discerning use of existing guidance by Commanders on the ground will remain a mainstay of preventing EHI.

  • Exertional Heat Illness
  • Exertional Heat Stroke
  • Body Temperature Regulation
  • Fever
  • Biological Markers
  • Received November 7, 2013.
  • Accepted November 9, 2013.

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