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Critical Care
Published in: Critical Care 3/2007

Open Access 01-06-2007 | Research

Cooling and hemodynamic management in heatstroke: practical recommendations

Authors: Abderrezak Bouchama, Mohammed Dehbi, Enrique Chaves-Carballo

Published in: Critical Care | Issue 3/2007

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Abstract

Introduction

Although rapid cooling and management of circulatory failure are crucial to the prevention of irreversible tissue damage and death in heatstroke, the evidence supporting the optimal cooling method and hemodynamic management has yet to be established.

Methods

A systematic review of all clinical studies published in Medline (1966 to 2006), CINAHL (Cumulative Index to Nursing & Allied Health Literature) (1982 to 2006), and Cochrane Database was performed using the OVID interface without language restriction. Search terms included heatstroke, sunstroke, and heat stress disorders.

Results

Fourteen articles reported populations subjected to cooling treatment for classic or exertional heatstroke and included data on cooling time, neurologic morbidity, or mortality. Five additional articles described invasive monitoring with central venous or pulmonary artery catheters. The four clinical trials and 15 observational studies covered a total of 556 patients. A careful analysis of the results obtained indicated that the cooling method based on conduction, namely immersion in iced water, was effective among young people, military personnel, and athletes with exertional heatstroke. There was no evidence to support the superiority of any one cooling technique in classic heatstroke. The effects of non-invasive, evaporative, or conductive-based cooling techniques, singly or combined, appeared to be comparable. No evidence of a specific endpoint temperature for safe cessation of cooling was found. The circulatory alterations in heatstroke were due mostly to a form of distributive shock associated with relative or absolute hypovolemia. Myocardial failure was found to be rare.

Conclusion

A systematic review of the literature failed to identify reliable clinical data on the optimum treatment of heatstroke. Nonetheless, the findings of this study could serve as a framework for preliminary recommendations in cooling and hemodynamic management of heatstroke until more evidence-based data are generated.
Appendix
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Metadata
Title
Cooling and hemodynamic management in heatstroke: practical recommendations
Authors
Abderrezak Bouchama
Mohammed Dehbi
Enrique Chaves-Carballo
Publication date
01-06-2007
Publisher
BioMed Central
Published in
Critical Care / Issue 3/2007
Electronic ISSN: 1364-8535
DOI
https://doi.org/10.1186/cc5910

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