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Revista chilena de cardiología

On-line version ISSN 0718-8560

Abstract

GABRIELLI, Luigi et al. Right atrial remodeling and plasma leves of Galectin-3 are related to functional capacity in patiensts with Pulmonary Artery Hypertension. Rev Chil Cardiol [online]. 2016, vol.35, n.1, pp.19-24. ISSN 0718-8560.  http://dx.doi.org/10.4067/S0718-85602016000100002.

Background: Galectin-3 is a biomarker of myo-cardial fibrosis and has been associated with echocar-diographic markers of right ventricular remodeling in patients with pulmonary artery hypertension (PAH). The association among Galectin-3 level, right atrial (RA) remodeling and functional capacity (FC) has not been explored. The objective was to measure plasma Galectin-3 concentrations and its relation with RA remodeling and FC in PAH patients. Methods: This is a prospective observational study and 14 PAH patients were included. Galectin-3 and proBNP levels were measured in all patients. FC was estimated by the 6-minute walk test (6MWT) and used to define 2 groups of subjects (≤200m or >200m). RA area and volume were measured by echocardiography from a 4 chamber view. Results: The average age was 43±10 years, 84% of patients were female. Galectin-3 levels were 16.1±7.4 ng / mL and 6MWT was 371±142 m. We observed an inverse correlation between RA area and 6MWT (-0.71;p=0.03). Conclusions: Higher Galectin-3 concentrations and RA adverse remodeling are related to a decreased FC in PAH patients. These findings may lead to a better characterization of PAH patients and eventually new therapeutic targets.

Keywords : Galectin-3; Pulmonary hypertension; Functional capacity.

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