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Exercise-induced my...
Exercise-induced myocardial edema in master triathletes : Insights from cardiovascular magnetic resonance imaging
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- Ricci, Fabrizio (author)
- Lund University,Lunds universitet,Kardiovaskulär forskning - hypertoni,Forskargrupper vid Lunds universitet,Cardiovascular Research - Hypertension,Lund University Research Groups,University G.d'Annunzio of Chieti-Pescara
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Aquaro, Giovanni Donato (author)
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- De Innocentiis, Carlo (author)
- University G.d'Annunzio of Chieti-Pescara
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Rossi, Serena (author)
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- Mantini, Cesare (author)
- University G.d'Annunzio of Chieti-Pescara
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- Longo, Francesca (author)
- University of Trieste
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- Khanji, Mohammed Y. (author)
- Barts Health NHS Trust,Newham University Hospital,Queen Mary University
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- Gallina, Sabina (author)
- University G.d'Annunzio of Chieti-Pescara
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- Pingitore, Alessandro (author)
- CNR Institute of Clinical Physiology (IFC-CNR)
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(creator_code:org_t)
- 2022-08-02
- 2022
- English.
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In: Frontiers in Cardiovascular Medicine. - : Frontiers Media SA. - 2297-055X. ; 9
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Abstract
Subject headings
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- Background: Strenuous exercise has been associated with functional and structural cardiac changes due to local and systemic inflammatory responses, reflecting oxidative, metabolic, hormonal, and thermal stress, even in healthy individuals. We aimed to assess changes in myocardial structure and function using cardiovascular magnetic resonance (CMR) imaging in master triathletes early after a full-distance Ironman Triathlon race. Materials and methods: Ten master triathletes (age 45 ± 8 years) underwent CMR within 3 h after a full-distance Ironman Triathlon race (3.8 km swimming, 180 km cycling, and 42.2 km running) completed with a mean time of 12 ± 1 h. All the triathletes had a 30-day follow-up CMR. Cine balanced steady-state free precession, T2-short tau inversion recovery (STIR), tagging, and late gadolinium enhancement (LGE) imaging sequences were performed on a 1.5-T MR scanner. Myocardial edema was defined as a region with increased T2 signal intensity (SI) of at least two SDs above the mean of the normal myocardium. The extent of myocardial edema was expressed as the percentage of left ventricular (LV) mass. Analysis of LV strain and torsion by tissue tagging included the assessment of radial, longitudinal, and circumferential peak systolic strain, rotation, and twist. Results: Compared with postrace, biventricular volumes, ejection fraction, and LV mass index remained unchanged at 30-day follow-up. Global T2 SI was significantly higher in the postrace CMR (postrace 10.5 ± 6% vs. follow-up 3.9 ± 3.8%, P = 0.004) and presented with a relative apical sparing distribution (P < 0.001) matched by reduction of radial peak systolic strain of basal segments (P = 0.003). Apical rotation and twist were significantly higher immediately after the competition compared with follow-up (P < 0.05). Conclusion: Strenuous exercise in master triathletes is associated with a reversible regional increase in myocardial edema and reduction of radial peak systolic strain, both presenting with a relative apical sparing pattern.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kardiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
Keyword
- athlete’s heart
- CMR
- deformation imaging
- Ironman
- master triathletes
Publication and Content Type
- art (subject category)
- ref (subject category)
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