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Personne :
Guzzetti, Ezequiel

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Guzzetti

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Ezequiel

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Université Laval

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  • PublicationAccès libre
    Impact of metabolic syndrome and/or diabetes mellitus on left ventricular mass and remodeling in patients with aortic stenosis before and after aortic valve replacement
    (ScienceDirect, 2019-01-01) Guzzetti, Ezequiel; Shen, Mylène; Voisine, Pierre; Annabi, Mohamed Salah; Poirier, Paul; Piché, Marie-Eve; Zenses, Anne-Sophie; Pibarot, Philippe; Clavel, Marie-Annick; Ong, Géraldine; Dagenais, François; Tastet, Lionel; Salaun, Erwan
    Background: In aortic stenosis (AS), metabolic syndrome (MetS) and diabetes mellitus (DM) are associated with more pronounced left ventricular hypertrophy (LVH) and more concentric remodeling. We aimed to assess the impact of MetS and DM on left ventricular (LV) mass, remodeling and LV mass regression after aortic valve replacement (AVR) in patients with severe AS. Method: We included 177 patients with severe AS and preserved LVEF (>50%). All patients had comprehensive echocardiography before and one year after AVR. Results: Twenty-seven percent (27%) of patients had MetS, 21% DM and 52% neither MetS nor DM (No MetS-DM). Prior to AVR, indexed LV mass (LVMi) was higher in MetS and DM groups compared to NoMetS-DM group (56.1±14.2, 56.2±18.2 vs. 49.2±14.1 g/m2.7 respectively; p<0.01). Prevalence of LV hypertrophy was higher in MetS and DM than in NoMetS-DM patients (66%, 65% vs 44%, p<0.01) as well as LV mass to-end-diastolic volume ratio (2.10±0.44 and 2.21±0.63 vs 1.96±0.41 g/ml respectively, p=0.03). One year after AVR, decrease in LVMi was significant (p<0.001) in all 3 groups. DM and MetS were independently associated with higher baseline LVMi (p<0.05). MetS was independently associated with less LVM regression and higher LVMi 1 year after AVR. MetS and DM groups showed more residual LV hypertrophy than NoMetS-DM patients (57%, 38% and 17%, p<0.01). Conclusions: MetS and DM were independently associated with a higher preoperative LVMi and more concentric remodeling. One year after AVR, MetS was associated with less LVMi regression and higher LVMi. MetS and DM patients remained with more residual LV hypertrophy