Document Detail


Left ventricular mechanics in idiopathic dilated cardiomyopathy: systolic-diastolic coupling and torsion.
MedLine Citation:
PMID:  19345064     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: In idiopathic dilated cardiomyopathy (IDC), myocardial deformational parameters and their mutual relationships remain incompletely characterized. METHODS: Thirty-seven patients with IDC underwent two-dimensional speckle-tracking echocardiography (2D-STE) to assess left ventricular rotation, torsion, and longitudinal, circumferential, and radial systolic and diastolic strains and strain rates. Additionally, 2D-STE was performed in 14 controls. RESULTS: All deformational parameters on 2D-STE were significantly lower in patients with IDC compared with controls. Seven patients exhibited opposite basal (positive, counterclockwise) and 11 patients exhibited opposite apical (negative, clockwise) rotation at end-systole. Circumferential, radial, and longitudinal early diastolic strain rates were correlated most strongly with the corresponding spatial components of systolic deformation. CONCLUSION: In patients IDC, all torsional, systolic, and diastolic deformational parameters were decreased. Corresponding three-dimensional components of systolic and diastolic deformations were closely coupled. Considerable variation in the direction of basal and apical rotation exists in a subset of patients with IDC.
Authors:
Jaroslav Meluzin; Lenka Spinarova; Petr Hude; Jan Krejci; Hana Poloczkova; Helena Podrouzkova; Martin Pesl; Marek Orban; Ladislav Dusek; Josef Korinek
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-04-02
Journal Detail:
Title:  Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography     Volume:  22     ISSN:  1097-6795     ISO Abbreviation:  J Am Soc Echocardiogr     Publication Date:  2009 May 
Date Detail:
Created Date:  2009-05-19     Completed Date:  2009-08-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8801388     Medline TA:  J Am Soc Echocardiogr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  486-93     Citation Subset:  IM    
Affiliation:
1st Department of Internal Medicine/Cardioangiology, St Anna Hospital, ICRC, Masaryk University, Brno, Czech Republic. jaroslav.meluzin@fnusa.cz
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MeSH Terms
Descriptor/Qualifier:
Adult
Cardiomyopathy, Dilated / complications,  ultrasonography*
Echocardiography, Doppler / methods*
Elasticity Imaging Techniques / methods*
Female
Humans
Male
Middle Aged
Torsion Abnormality / complications,  ultrasonography*
Ventricular Dysfunction, Left / complications,  ultrasonography*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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