PMID- 31307657 OWN - NLM STAT- MEDLINE DCOM- 20191125 LR - 20191125 IS - 1872-7727 (Electronic) IS - 0720-048X (Linking) VI - 117 DP - 2019 Aug TI - Cardiovascular magnetic resonance with parametric mapping in long-term ultra-marathon runners. PG - 89-94 LID - S0720-048X(19)30205-0 [pii] LID - 10.1016/j.ejrad.2019.06.001 [doi] AB - PURPOSE: There is a direct reverse dose-effect relationship between the amount of physical activity and cardiovascular risk. It is unknown whether this is true for extreme, persistent endurance training. The aim of the study was to assess structural changes of the heart in long-time ultra-marathon runners with special focus on myocardial fibrosis using parametric mapping. METHOD: We studied a group of 30 healthy, male ultra-marathon runners (mean age 40.9 +/- 6.6 yrs, median 9 yrs of running with frequent competitions) and 10 matched controls not engaged in any regular activities. All of them underwent cardiovascular magnetic resonance (CMR) with 3 T scanner including T1-mapping, late gadolinium enhancement (LGE) and extracellular volume (ECV) quantification. RESULTS: Athletes demonstrated significantly larger heart chambers and left ventricular (LV) mass. LV systolic function was unchanged. 73.3% of athletes fulfilled volumetric criteria for dilated cardiomyopathy or arrhythmogenic right ventricular cardiomyopathy. Non-ischemic, small volume LGE was found in 8 athletes and in 1 control (27% vs. 10%, p = 0.40). It was localised at insertion points (5 athletes, 1 control) or in the septum or infero-lateral wall (3 athletes). Athletes with insertion point LGE had higher right ventricular end-diastolic volume index in comparison to athletes without LGE (p = 0.04), which suggests its relation to volume overload. There were no differences between athletes and non-athletes in terms of ECV values (26.1% vs. 25%, p = 0.29). CONCLUSIONS: Ultra-marathon runner's hearts demonstrate a high degree of structural remodelling, but there is no significant increase in focal or diffuse myocardial fibrosis. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Malek, Lukasz A AU - Malek LA AD - Faculty of Rehabilitation, Jozef Pilsudski University of Physical Education in Warsaw, Poland. Electronic address: lukasz.malek@awf.edu.pl. FAU - Barczuk-Falecka, Marzena AU - Barczuk-Falecka M AD - Department of Pediatric Radiology, Medical University of Warsaw, Poland. FAU - Werys, Konrad AU - Werys K AD - Oxford Centre for Clinical Magnetic Resonance Research, John Radcliffe Hospital, Headington, Oxford, United Kingdom. FAU - Czajkowska, Anna AU - Czajkowska A AD - Faculty of Tourism and Recreation, Jozef Pilsudski University of Physical Education in Warsaw, Poland. FAU - Mroz, Anna AU - Mroz A AD - Faculty of Physical Education, Jozef Pilsudski University of Physical Education in Warsaw, Poland. FAU - Witek, Katarzyna AU - Witek K AD - Faculty of Physical Education, Jozef Pilsudski University of Physical Education in Warsaw, Poland. FAU - Burrage, Matthew AU - Burrage M AD - Oxford Centre for Clinical Magnetic Resonance Research, John Radcliffe Hospital, Headington, Oxford, United Kingdom. FAU - Bakalarski, Wawrzyniec AU - Bakalarski W AD - Faculty of Physical Education, Jozef Pilsudski University of Physical Education in Warsaw, Poland. FAU - Nowicki, Dariusz AU - Nowicki D AD - Faculty of Tourism and Recreation, Jozef Pilsudski University of Physical Education in Warsaw, Poland. FAU - Roik, Danuta AU - Roik D AD - Department of Pediatric Radiology, Medical University of Warsaw, Poland. FAU - Brzewski, Michal AU - Brzewski M AD - Department of Pediatric Radiology, Medical University of Warsaw, Poland. LA - eng PT - Journal Article DEP - 20190603 PL - Ireland TA - Eur J Radiol JT - European journal of radiology JID - 8106411 SB - IM MH - Adult MH - *Athletes MH - Cardiac Output MH - Cardiac Volume MH - Health Surveys MH - Heart/anatomy & histology/diagnostic imaging/*physiology MH - Humans MH - Magnetic Resonance Spectroscopy MH - Male MH - Middle Aged MH - Organ Size MH - Running/*physiology MH - Ventricular Function, Left/*physiology OTO - NOTNLM OT - Adaptation OT - Fibrosis OT - Late gadolinium enhancement OT - Running OT - T1-mapping OT - T2-mapping EDAT- 2019/07/17 06:00 MHDA- 2019/11/26 06:00 CRDT- 2019/07/17 06:00 PHST- 2019/01/10 00:00 [received] PHST- 2019/05/28 00:00 [revised] PHST- 2019/06/02 00:00 [accepted] PHST- 2019/07/17 06:00 [entrez] PHST- 2019/07/17 06:00 [pubmed] PHST- 2019/11/26 06:00 [medline] AID - S0720-048X(19)30205-0 [pii] AID - 10.1016/j.ejrad.2019.06.001 [doi] PST - ppublish SO - Eur J Radiol. 2019 Aug;117:89-94. doi: 10.1016/j.ejrad.2019.06.001. Epub 2019 Jun 3.