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Published on: July 1, 2021
Cardiovascular responses to heat stress in chronic heart failure
1Penn State Hershey Heart and Vascular Institute, H047, Milton S. Hershey Medical Center, Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA, 17033, USA, jcui@hmc.psu.edu.
Abstract:
Clinical reports have suggested that patients with heart diseases may be particularly vulnerable to heat injury. This review examines the effects of heat stress on cardiovascular and autonomic functions in patients with chronic heart failure (CHF). Laboratory investigations have shown that cutaneous vasodilator responses to heating are impaired in patients, whereas activation of skin sympathetic nerve activation is not attenuated in CHF as compared to controls. Attenuated cutaneous vasodilation may increase the risk of a heat related illness when CHF subjects are exposed to hyperthermic conditions.
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