PMID- 31242053 OWN - NLM STAT- MEDLINE DCOM- 20201221 LR - 20210312 IS - 2047-4881 (Electronic) IS - 2047-4873 (Print) IS - 2047-4873 (Linking) VI - 27 IP - 1 DP - 2020 Jan TI - Acute impact of an endurance race on cardiac function and biomarkers of myocardial injury in triathletes with and without myocardial fibrosis. PG - 94-104 LID - 10.1177/2047487319859975 [doi] AB - AIMS: The aim of this study was to investigate the occurrence of myocardial injury and cardiac dysfunction after an endurance race by biomarkers and cardiac magnetic resonance in triathletes with and without myocardial fibrosis. METHODS AND RESULTS: Thirty asymptomatic male triathletes (45 +/- 10 years) with over 10 training hours per week and 55 +/- 8 ml/kg per minute maximal oxygen uptake during exercise testing were studied before (baseline) and 2.4 +/- 1.1 hours post-race. Baseline cardiac magnetic resonance included cine, T1/T2, late gadolinium enhancement (LGE) and extracellular volume imaging. Post-race non-contrast cardiac magnetic resonance included cine and T1/T2 mapping. Non-ischaemic myocardial fibrosis was present in 10 triathletes (LGE+) whereas 20 had no fibrosis (LGE-). At baseline, LGE + triathletes had higher peak exercise systolic blood pressure with 222 +/- 21 mmHg compared to LGE- triathletes (192 +/- 30 mmHg, P < 0.01). Post-race troponin T and creatine kinase MB were similarly increased in both groups, but there was no change in T2 and T1 from baseline to post-race with 54 +/- 3 ms versus 53 +/- 3 ms (P = 0.797) and 989 +/- 21 ms versus 989 +/- 28 ms (P = 0.926), respectively. However, post-race left atrial ejection fraction was significantly lower in LGE + triathletes compared to LGE- triathletes (53 +/- 6% vs. 59 +/- 6%, P < 0.05). Furthermore, baseline atrial peak filling rates were lower in LGE - triathletes (121 +/- 30 ml/s/m(2)) compared to LGE + triathletes (161 +/- 34 ml/s/m(2), P < 0.01). Post-race atrial peak filling rates increased in LGE- triathletes to 163 +/- 46 ml/s/m(2), P < 0.001), but not in LGE + triathletes (169 +/- 50ml/s/m(2), P = 0.747). CONCLUSION: Despite post-race troponin T release, we did not find detectable myocardial oedema by cardiac magnetic resonance. However, the unfavourable blood pressure response during exercise testing seemed to be associated with post-race cardiac dysfunction, which could explain the occurrence of myocardial fibrosis in triathletes. FAU - Tahir, Enver AU - Tahir E AD - Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Hospital Hamburg-Eppendorf, Germany. FAU - Scherz, Benedikt AU - Scherz B AD - Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Hospital Hamburg-Eppendorf, Germany. FAU - Starekova, Jitka AU - Starekova J AD - Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Hospital Hamburg-Eppendorf, Germany. FAU - Muellerleile, Kai AU - Muellerleile K AD - Department of General and Interventional Cardiology, University Heart Center, Germany. FAU - Fischer, Roland AU - Fischer R AD - Department of Pediatric Hematology and Oncology, University Hospital Hamburg-Eppendorf, Germany. AD - UCSF, Benioff Children's Hospital Oakland, USA. FAU - Schoennagel, Bjorn AU - Schoennagel B AD - Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Hospital Hamburg-Eppendorf, Germany. FAU - Warncke, Malte AU - Warncke M AD - Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Hospital Hamburg-Eppendorf, Germany. FAU - Stehning, Christian AU - Stehning C AD - Philips Clinical Science, Germany. FAU - Cavus, Ersin AU - Cavus E AD - Department of General and Interventional Cardiology, University Heart Center, Germany. FAU - Bohnen, Sebastian AU - Bohnen S AD - Department of General and Interventional Cardiology, University Heart Center, Germany. FAU - Radunski, Ulf K AU - Radunski UK AD - Department of General and Interventional Cardiology, University Heart Center, Germany. FAU - Blankenberg, Stefan AU - Blankenberg S AD - Department of General and Interventional Cardiology, University Heart Center, Germany. FAU - Simon, Perikles AU - Simon P AD - Department of Sports Medicine, Johannes Gutenberg University Mainz, Germany. FAU - Pressler, Axel AU - Pressler A AD - Department of Prevention, Rehabilitation and Sports Medicine, Technische Universitat Munchen, Germany. AD - Center of Sports and Preventive Cardiology, Germany. FAU - Adam, Gerhard AU - Adam G AD - Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Hospital Hamburg-Eppendorf, Germany. FAU - Patten, Monica AU - Patten M AD - UCSF, Benioff Children's Hospital Oakland, USA. FAU - Lund, Gunnar K AU - Lund GK AD - Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Hospital Hamburg-Eppendorf, Germany. LA - eng PT - Journal Article DEP - 20190626 PL - England TA - Eur J Prev Cardiol JT - European journal of preventive cardiology JID - 101564430 RN - 0 (Biomarkers) RN - 0 (Troponin T) RN - EC 2.7.3.2 (Creatine Kinase, MB Form) SB - IM CIN - Eur J Prev Cardiol. 2020 Jan;27(1):89-93. PMID: 31412714 CIN - Eur J Prev Cardiol. 2019 Aug 31;:2047487319871114. PMID: 31475578 CIN - Eur J Prev Cardiol. 2019 Nov;26(16):1783-1784. PMID: 31488000 MH - Adolescent MH - Adult MH - Bicycling MH - Biomarkers/blood MH - Blood Pressure MH - Cardiomyopathies/blood/diagnostic imaging/*etiology/physiopathology MH - Case-Control Studies MH - Creatine Kinase, MB Form/*blood MH - Edema, Cardiac/blood/diagnostic imaging/*etiology/physiopathology MH - Fibrosis MH - Humans MH - *Magnetic Resonance Imaging, Cine MH - Male MH - Middle Aged MH - Myocardium/*pathology MH - *Physical Endurance MH - Predictive Value of Tests MH - Running MH - Swimming MH - Time Factors MH - Troponin T/*blood MH - *Ventricular Function, Left MH - *Ventricular Function, Right MH - Young Adult PMC - PMC6923712 OTO - NOTNLM OT - Athlete's heart OT - T2 and T1 mapping OT - cardiac magnetic resonance OT - late gadolinium enhancement OT - myocardial fibrosis OT - post-race cardiac function OT - post-race myocardial oedema EDAT- 2019/06/27 06:00 MHDA- 2020/12/22 06:00 PMCR- 2019/12/20 CRDT- 2019/06/27 06:00 PHST- 2019/06/27 06:00 [pubmed] PHST- 2020/12/22 06:00 [medline] PHST- 2019/06/27 06:00 [entrez] PHST- 2019/12/20 00:00 [pmc-release] AID - 10.1177_2047487319859975 [pii] AID - 10.1177/2047487319859975 [doi] PST - ppublish SO - Eur J Prev Cardiol. 2020 Jan;27(1):94-104. doi: 10.1177/2047487319859975. Epub 2019 Jun 26.