Abstract

CANON-MONTANEZ, Wilson; B.S. SANTOS, ángela  and  FOPPA, Murilo. Global longitudinal strain: a useful parameter to assess subclinical left ventricular dysfunction in metabolic syndrome. Rev. Colomb. Cardiol. [online]. 2016, vol.23, n.2, pp.112-119. ISSN 0120-5633.  https://doi.org/10.1016/j.rccar.2015.10.008.

The high prevalence of metabolic syndrome is a global phenomenon. Due to the increase of the concomitant risk of developing diabetes mellitus and cardiovascular diseases, metabolic syndrome will place a great burden on world economies and public health unless early and efficient action interventions are conducted. One of the suggested mechanisms in order to increase the cardiovascular risk is related to subclinical systolic and diastolic dysfunction discovered in these patients. Ejection fraction, the most frequently used parameter to assess systolic function, presents a low sensitivity to the assessment of early dysfunction of myocardial contractility. The development of new echocardiographic techniques, such as global longitudinal strain by two-dimensional speckle-tracking echocardiography have strengthened the ability to assess left ventricle function with a quantitative assessment of myocardial deformation. Early detection and management of subclinical cardiovascular diseases can mitigate some of the cardiovascular risks associated to metabolic disorders. With its ability to detect subclinical left ventricular dysfunction in patients with metabolic syndrome, global longitudinal strain measured with two-dimensional speckle-tracking echocardiography has the potential to become a useful tool for risk stratification in this population group.

Keywords : Metabolic syndrome; left ventricular function. diastolic function; myocardial contraction.

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