%0 Journal Article %T A£¿young man with exertional chest discomfort %A B. Roque Rodr¨ªguez %A L. E. Lezcano Gort %A M. R. Porro Fern¨¢ndez %J Archive of "Netherlands Heart Journal". %D 2019 %R 10.1007/s12471-019-1275-9 %X In this case we present a 43-year-old athletic male, nonprofessional cyclist with unremarkable medical history. He had been admitted to the emergency department because of chest discomfort, dizziness, heavy sweating and nausea after cycling 40£¿km in extreme heat (local temperature 41.5 degrees Celsius). Physical examination revealed a Glasgow Coma Scale score of 15, and he was haemodynamically stable. The laboratory results showed: creatine kinase 870£¿IU/l, creatine kinase-MB 12£¿IU/l, troponin T 16£¿ng/ml, and creatinine 1.6£¿mg/dl. Out-of-hospital electrocardiogram taken at first medical contact is shown in Fig. 1 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6470235/