Lack of change in myocardial function and fibrosis following a 6-day ultra-endurance exercise: A case report

a Department of Cardiovascular Medicine, Lille University Hospital, Cardiology Hospital, CHRU, 59037 Lille, France b University of Lille 2, EA4488 “Activite Physique, Muscle, Sante”, Faculty of Sports Sciences and Physical Education, 59790 Ronchin, France c Electrophysiology Service, Montreal Heart Institute, Montreal, Canada d Cardiology Department, Hopital du Bocage, University Hospital, Dijon, France, Doctrotter Medical Consulting Assistance e Radiology and Cardiovascular Imaging, Lille University Hospital, Cardiology Hospital, CHRU, 59037 Lille, France f University of Lille 2, Faculty of Medicine, 59045 Lille, France g Department of Medicine, Universite de Montreal, Montreal, Canada