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Cited by 270

The DOI matches its Crossref record; 251 of the 251 references it cites were found in a registry or an index.

Human Cardiovascular Responses to Passive Heat Stress

Open access
Crandall, Craig G., Wilson, Thad E.·2014·Comprehensive Physiology
DOI 10.1002/cphy.c140015
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Abstract

Heat stress increases human morbidity and mortality compared to normothermic conditions. Many occupations, disease states, as well as stages of life are especially vulnerable to the stress imposed on the cardiovascular system during exposure to hot ambient conditions. This review focuses on the cardiovascular responses to heat stress that are necessary for heat dissipation. To accomplish this regulatory feat requires complex autonomic nervous system control of the heart and various vascular beds. For example, during heat stress cardiac output increases up to twofold, by increases in heart rate and an active maintenance of stroke volume via increases in inotropy in the presence of decreases in cardiac preload. Baroreflexes retain the ability to regulate blood pressure in many, but not all, heat stress conditions. Central hypovolemia is another cardiovascular challenge brought about by heat stress, which if added to a subsequent central volumetric stress, such as hemorrhage, can be problematic and potentially dangerous, as syncope and cardiovascular collapse may ensue. These combined stresses can compromise blood flow and oxygenation to important tissues such as the brain. It is notable that this compromised condition can occur at cardiac outputs that are adequate during normothermic conditions but are inadequate in heat because of the increased systemic vascular conductance associated with cutaneous vasodilation. Understanding the mechanisms within this complex regulatory system will allow for the development of treatment recommendations and countermeasures to reduce risks during the ever-increasing frequency of severe heat events that are predicted to occur.

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Metadata

Authors
Crandall, C. G., & Wilson, T. E.
Venue
Comprehensive Physiology
Publisher
Wiley
Published
2014-12-23
Volume
5
Issue
1
Pages
17-43
ISSN
2040-4603 (ISSN-L)
DOI
10.1002/cphy.c140015
OpenAlex
W1596244991
Cited by
270
References
251
Type
other
Language
en
Open access
green

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