Quantitative assessment of the left atrial myocardial deformation in patients with chronic mitral regurgitation by strain and strain rate imaging: an observational study

Anadolu Kardiyoloji Dergisi : AKD = the Anatolian Journal of Cardiology
Enbiya AksakalMustafa Kurt

Abstract

We evaluated regional left atrial (LA) myocardial deformations by strain (S) and strain rate (SR) imaging during LA pump, reservoir, and conduit phases in patients with chronic rheumatic mitral regurgitation (MR). This cross-sectional observational study included 42 patients with moderate-to-severe MR who had normal left ventricular (LV) function, and 36 healthy control subjects. Conventional echocardiographic data were used to calculate LV and LA dimensions, volumes and functional indices (LA ejection fraction, LA active and passive emptying fraction). Longitudinal S/SR indices of the mid and superior segments of LA walls were measured during the three LA phases. Student t-test, Mann-Whitney U test, Chi-square test and Bland-Altman analysis were used for statistical analysis. LV systolic functions were similar in the patient and control groups. LV diameters, LA diameters and LA volumes were greater in the patient group compared with the control group (p<0.05, p<0.001, and p<0.001). LA ejection fraction and LA active emptying fraction values were lower in the patient group than in the control group (56 ± 7 vs. 63 ± 5%, 33 ± 9 vs. 40 ± 4%, p<0.05 for both). During the three LA phases, longitudinal S/SR values were significantly ...Continue Reading

Citations

Mar 25, 2014·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Maria J VieiraBernard J Gersh

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cardiomyopathy

Cardiomyopathy is a disease of the heart muscle, that can lead to muscular or electrical dysfunction of the heart. It is often an irreversible disease that is associated with a poor prognosis. There are different causes and classifications of cardiomyopathies. Here are the latest discoveries pertaining to this disease.