Abstract:
BACKGROUND:Left ventricular filling pressure (LVFP) is raised by the compromised contraction and impaired ventricular compliance in dilated hearts with systolic dysfunction. Timely recognition and staging of this condition are important for planning of the treatment strategy and making the prognosis. Two-dimensional speckle- tracking echocardiography (2D-STE) has recently enabled the quantification of left atrial (LA) myocardial deformation dynamics. In this study, echocardiographic indicators of increased LVFP and NT-pro-BNP were compared with LA strain measured by 2D-STE. METHODS:A total of 49 nonischemic dilated cardiomyopathy (DCMP) patients were included in the study. All patients underwent standard 2D echocardiography. In the 2D-STE analysis of the LA, global longitudinal LA strain during ventricular systole (GLAs-res) and strain during late diastole (GLAs-pump) were obtained. NT-pro-BNP levels were measured. The patients were divided into two groups--normal (group 1) and increased (group 2) LVFP--according to E/A ratio, E velocity, and E/E' ratio. RESULTS:LAVi-max, LAVi-min, and NT-pro-BNP were higher in group 2, whereas LAtotalEF, LAactiveEF, GLAs-res, and GLAs-pump were lower. In univariate analysis, a good negative correlation was seen between GLAs-res vs. NT-pro-BNP, GLAs-res vs. LAVi-max, and GLAs-res vs. E/E' ratio; a good negative correlation was present between GLAs-pump vs. NT-pro-BNP, GLAs-pump vs. LAVi-max, and GLAs-pump vs. E/E' ratio. LAVi-max, LAactiveEF, NT-pro-BNP, GLas-res, and GLAs-pump were studied by logistic regression analysis. GLAs-res (p = 0.009, OR = 0.593, 95 % CI 0.4-0.877), NT-pro-BNP (p = 0.028, OR = 1.027, 95 % CI 1.003-1.052), and LAactiveEF (p = 0.022, OR = 0.001, 95 % CI 0.001-0.024) were found to be independent predictors of increased LVFP. CONCLUSION:2D-STE-based LA function is impaired in patients with nonischemic DCMP. LA reservoir and pump function parameters together with NT-pro-BNP levels might be useful in estimating LVFP in this patient group.
journal_name
Herzjournal_title
Herzauthors
Guler A,Tigen KM,Dundar C,Karaahmet T,Karabay CY,Aung SM,Akgun T,Bulut M,Kirma Cdoi
10.1007/s00059-013-3817-zsubject
Has Abstractpub_date
2014-03-01 00:00:00pages
251-7issue
2eissn
0340-9937issn
1615-6692journal_volume
39pub_type
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