EM Vivas · Heat illness and heat stroke
Heat stroke cooling method and target — clinical viva
Clinical viva on exertional heat stroke recognition, immersion vs evaporative cooling, stop-at-39 target, and no antipyretics.
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Reveal interpretationShowHide
Diagnosis. Exertional heatstroke: a core temperature above 40 °C with central nervous system dysfunction during strenuous exercise.[11]
Definitive cooling. Ice-water or cold-water immersion has the fastest cooling rates; when immersion is not possible, continual dousing with fanning is an alternative.[13] In 274 race patients, immediate on-site immersion cooled at 0.22 °C per minute with 100 per cent survival.[15] Aim for a core temperature below 39 °C within 30 minutes.[14]
What to avoid. Antipyretics, dantrolene and NSAIDs are not recommended.[14]
After cooling. Patients generally require hospitalisation to monitor for complications, and should refrain from physical activity for at least seven days after release from care.[12]
References9ShowHide
- [1]Lipman GS, Gaudio FG, Eifling KP, et al. Wilderness Medical Society Clinical Practice Guidelines for the Prevention and Treatment of Heat Illness: 2019 Update. Wilderness Environ Med, 2019.PMID 31221601
- [2]Bouchama A, Dehbi M, Chaves-Carballo E Cooling and hemodynamic management in heatstroke: practical recommendations. Crit Care, 2007.PMID 17498312
- [5]Douma MJ, Aves T, Allan KS, et al. First aid cooling techniques for heat stroke and exertional hyperthermia: A systematic review and meta-analysis. Resuscitation, 2020.PMID 31981710
- [10]Casa DJ, DeMartini JK, Bergeron MF, et al. National Athletic Trainers' Association Position Statement: Exertional Heat Illnesses. J Athl Train, 2015.PMID 26381473
- [11]Bouchama A, Abuyassin B, Lehe C, et al. Classic and exertional heatstroke. Nature reviews. Disease primers, 2022.PMID 35115565
- [12]Gauer R, Meyers BK Heat-Related Illnesses. American family physician, 2019.PMID 30990296
- [13]McDermott BP, Casa DJ, Ganio MS, et al. Acute whole-body cooling for exercise-induced hyperthermia: a systematic review. Journal of athletic training, 2009.PMID 19180223
- [14]DeGroot DW, Ruby B, Koo A, et al. Far from Home: Heat-Illness Prevention and Treatment in Austere Environments. Wilderness & environmental medicine, 2025.PMID 40262113
- [15]Demartini JK, Casa DJ, Stearns R, et al. Effectiveness of cold water immersion in the treatment of exertional heat stroke at the Falmouth Road Race. Medicine and science in sports and exercise, 2015.PMID 24983342