Ann Thorac Surg. 2007 Sep ;84 (3):1025-7 17720429
Is previous thoracic sympathectomy a risk factor for exertional heat stroke?
Alan D L Sihoe , Raymond W T Liu , Alex K L Lee , Chak-Wah Lam , Lik-Cheung Cheng
We report the case of a physically fit young man who presented with severe, life-threatening heat
stroke after running a 10 km road race. He had previously received bilateral thoracic
sympathectomy for axillary hyperhidrosis at another hospital, and was known to have upper body
and limb anhidrosis. Thoracic sympathectomy can result in reduced sweating and disturbed
peripheral vascular and heart rate responses. Patients should be warned that these mechanisms may play a role in the development of exertional heat stroke.