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Updated: Jun 23, 2026

A Preclinical Model of Exertional Heat Stroke in Mice
Published on: July 1, 2021
Early organ dysfunction course, cooling time and outcome in classic heatstroke
Sebastian Pease1, Lila Bouadma, Nathalie Kermarrec
1Medical Intensive Care Unit, AP-HP, Hôpital Bichat-Claude Bernard, 75018 Paris, France. sebastian.pease@bjn.aphp.fr
Purpose:
To describe the course of early organ dysfunction in a cohort of patients admitted in ICU suffering classic heatstroke.
Methods:
Prospective observational single-centre cohort study with a 1-year follow-up.
Interventions:
None.
Measurements And Main Results:
Clinical and biological data of 22 patients were analysed. Median body temperature on admission was 41.1 degrees C. Respiratory, circulatory, haematological, hepatic and renal function all deteriorated within the first 24 h of admission. ICU-mortality was 63.6%. Cooling time, serum lactate, serum cardiac troponin I and creatinine were significantly higher in non-survivors. Early ICU-mortality (within 7 days of ICU stay) was due to multiple organ failure. Late ICU-mortality was due to neurological disability.
Conclusions:
Classic heat stroke may demonstrate a rapidly worsening organ dysfunction course leading to death even though cooling procedures and intensive care management are promptly started.
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