Aortic stenosis; Epicardial adipose tissue; Hypertrophy; Left ventricle remodeling; Obese
Abstract :
[en] Both genetic and environmental factors interact to control left ventricular (LV) remodeling in the context of aortic stenosis (AS). Epicardial adipose tissue (EAT) is a specific visceral adipose tissue with paracrine properties in close contact with the myocardium. We sought to assess determinants of EAT amount and its association with the magnitude and pattern of LV remodeling in patients suffering from severe AS. Between January 2014 and September 2017, we prospectively explored consecutive patients referred to our Heart Valve Center for SAVR presenting with severe AS and normal left ventricular ejection fraction (> 50%). Comprehensive transthoracic echocardiography (TTE) including assessment of LV remodeling and EAT amount were performed. 202 patients were included. EAT was significantly larger in elderly, diabetic and obese patients. EAT thickness was correlated positively with indexed LV mass in AS (r(2) = 0.21; p < 0.0001) as well as severe LV remodeling pattern. Importantly, this observation persisted after adjustment for other factors associated with LV remodeling (beta +/- SE = 1.74 +/- 0.34; p < 0.0001). Large amounts of EAT are positively and independently associated with more pronounced and severe LV remodeling in severe AS. Further exploration regarding the impact of functional properties of EAT on LV remodeling is required.
Disciplines :
Cardiovascular & respiratory systems
Author, co-author :
Coisne, Augustin
Ninni, Sandro
Ortmans, Staniel
Davin, Laurent
Kasprzak, Kevin
Longere, Benjamin
Seunes, Claire
Coppin, Amandine
Mouton, Stephanie
Ridon, Helene
Klein, Cedric
Noirot-Cosson, Brieuc
Staels, Bart
Lancellotti, Patrizio ; Université de Liège - ULiège > Département des sciences cliniques > Cardiologie - Pathologie spéciale et réhabilitation
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