• Caroline Newman and Karl B Fields.
• From the Department of Pediatrics, University of North Carolina Hospital System, Chapel Hill, NC.
• Pediatr Emerg Care. 2021 Dec 1; 37 (12): e1714e1717e1714-e1717.

AbstractExertional collapse associated with sickle trait (ECAST) is an underrecognized cause of exertional collapse triggered by complex mechanisms involving acidosis, rhabdomyolysis, and arrhythmias, all of which create sickling, vaso-occlusive problems, and ultimately end organ failure. Three cases are described in young athletes, as well as 12 other examples of ECAST noted in case reports and news sources. Exertional collapse associated with sickle trait can be differentiated from other common causes of collapse (exertional heat syndrome, acute cardiac events, and asthma) because it is a conscious collapse without neurological changes, occurs early in workout with only mildly elevated body temperature, and involves muscle pain and weakness but not cramping. Aggressive early management and transport to care facilities can reverse ECAST in certain cases. This article discusses tips for early recognition, initial treatment in the emergency department, and precautions that can be taken to prevent sickling collapse in athletes with sickle cell trait (SCT).Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

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