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[Atrial myocardial deformation in healthy individuals of two-dimensional strain].

The biggest problem in the evaluation of the function of atria is a lack of knowledge about normal values. There are no data on the use of two-dimensional strain (2-DS) for the assessment of atrial myocardial deformation. The aim of this study was to find out the feasibility of 2-DS in the evaluation of the function of atrial myocardium in healthy individuals. We have evaluated 30 healthy persons with normal values of standard echocardiography. 2-DS data were recorded in each patient for the lateral, septal, posterior, inferior and anterior walls of the left atrium and also of the lateral wall of the right atrium. We have measured peak strain (epsilon), peak strain rate (SR), peak displacement of each segment during the contractile, reservoir and conduit atrial phases. The timing of mechanical events also were assessed at the left atrium and right atrium walls and interatrial septum. Our study has demonstrated the ability to use 2-DS Echo in evaluation of epsilon/SR of atrial myocardium in different parts of atria in healthy patients. This method is easy to use and it is useful in assessment of mechanical function of atria.