Regional myocardial function abnormalities are associated with macro- and microcirculation dysfunction in the metabolic syndrome: the RESOLVE study
Journal article
Phillippe Obert, Guillaume Walther, Frederic Dutheil, Bruno Lesourd, Robert Chapier, Daniel Courteix and Agnes Vinet. (2018). Regional myocardial function abnormalities are associated with macro- and microcirculation dysfunction in the metabolic syndrome: the RESOLVE study. Heart and Vessels: an international journal. 33(6), pp. 688-694. https://doi.org/10.1007/s00380-017-1108-y
Authors | Phillippe Obert, Guillaume Walther, Frederic Dutheil, Bruno Lesourd, Robert Chapier, Daniel Courteix and Agnes Vinet |
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Abstract | Abnormalities in myocardial and vascular function have been reported in the metabolic syndrome (MetS), but whether these alterations are related remains poorly documented. Our aim was accordingly to investigate interrelationships between macro- and microcirculatory vasoreactivity and left ventricular (LV) myocardial function in MetS patients. Eighty-eight MetS individuals and 44 age- and gender-matched healthy controls were enrolled. LV global longitudinal strain (GLS) was measured using Vector Velocity Imaging. Endothelial-dependent and independent reactivity in macro- and microcirculatory territories was established using flow-mediated dilation and nitrate-mediated dilation of the brachial artery and cutaneous blood flow measured with laser Doppler flowmetry in response to iontophoresis of acetylcholine and sodium nitroprusside, respectively. Carotid intima-media thickness (cIMT) was measured according to the Mannheim consensus. Compared to controls, MetS patients presented with reduced GLS (p < 0.001) increased cIMT and impaired (p < 0.001) endothelial and smooth muscle function of the brachial artery and the forearm skin microcirculation. Highly significant relationships (p < 0.01) were noticed between GLS and vascular outcomes. In addition, cIMT (β = 0.21, p = 0.024) and microcirculatory endothelium-dependent reactivity (β = − 0.20, p = 0.035) were identified as independent predictors of GLS. In MetS, abnormalities in myocardial function and endothelial as well as smooth muscle function of small and large arteries co-exist and are closely associated. This study supports a role for microvascular dysfunction in the pathogenesis of LV myocardial dysfunction. |
Keywords | endothelium ; smooth muscle function ; myocardial function ; metabolic syndrome |
Year | 2018 |
Journal | Heart and Vessels: an international journal |
Journal citation | 33 (6), pp. 688-694 |
Publisher | Springer Tokyo |
ISSN | 0910-8327 |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s00380-017-1108-y |
Scopus EID | 2-s2.0-85040707982 |
Publisher's version | File Access Level Controlled |
Publication process dates | |
Deposited | 12 May 2021 |
https://acuresearchbank.acu.edu.au/item/8w091/regional-myocardial-function-abnormalities-are-associated-with-macro-and-microcirculation-dysfunction-in-the-metabolic-syndrome-the-resolve-study
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