| Left ventricular mechanics in idiopathic dilated cardiomyopathy: systolic-diastolic coupling and torsion. | |
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MedLine Citation:
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PMID: 19345064 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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. |
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Authors:
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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:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-04-02 |
Journal Detail:
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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:
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Created Date: 2009-05-19 Completed Date: 2009-08-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8801388 Medline TA: J Am Soc Echocardiogr Country: United States |
Other Details:
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Languages: eng Pagination: 486-93 Citation Subset: IM |
Affiliation:
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1st Department of Internal Medicine/Cardioangiology, St Anna Hospital, ICRC, Masaryk University, Brno, Czech Republic. jaroslav.meluzin@fnusa.cz |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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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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