| Myocardial strain characterization in different left ventricular adaptative responses to high blood pressure: a study based on 3D-wall motion tracking analysis. | |
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MedLine Citation:
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PMID: 20584068 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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BACKGROUND: High blood pressure increases left ventricular (LV) after-load. Furthermore, LV response to that high blood pressure varies among different subjects. Nevertheless, myocardial deformation behavior in these different adaptative responses has not been analyzed until now. METHODS: Prospective study in which 66 consecutive hypertensive patients were enrolled in between May and August 2009. Every patient underwent a standard echocardiographic study and a three-dimensional-wall motion tracking (3D-WMT) study. The patients were classified according to parameters derived from echocardiography in four different groups: normal geometry, concentric remodelling, concentric hypertrophy, and eccentric hypertrophy. RESULTS: Mean age was 68 years (57-74.25; 51.5% male). Comparing the four groups, significant differences were found for the five 3D-WMT-derived parameters. When patients were compared with hypertensive patients with normal geometry, our finding show that: (a) LV average torsion is the only impaired parameter that is found in the LV concentric remodelling group (P < 0.05 vs. group 1); (b) there is a trend for an increase (P = 0.055) in LV average radial strain in the group with concentric hypertrophy and this increase is accompanied by a significant decrease in the remaining studied parameters (P < 0.05); and (c) in the LV eccentric hypertrophy group, there is a significant impairment in all the studied parameters (P < 0.05). CONCLUSIONS: LV adaptative response to hypertension is accompanied by a modification or even impairment, in LV myocardial deformation evaluated by 3D-WMT. This assessment might be useful to detect early and subtle deformation impairments in hypertensive patients and it could help optimize their clinical management. |
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Authors:
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Adriana Saltijeral; Leopoldo Perez de Isla; Kenia Veras; Maria de Jesus Fernandez; Willem Gorissen; Juan Rementeria; Carlos Almeria; Jose Luis Rodrigo; Covadonga Fernandez-Golfin; Pedro Marcos-Alberca; Carlos Macaya; Jose Zamorano |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Echocardiography (Mount Kisco, N.Y.) Volume: 27 ISSN: 1540-8175 ISO Abbreviation: Echocardiography Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-11-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8511187 Medline TA: Echocardiography Country: United States |
Other Details:
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Languages: eng Pagination: 1238-46 Citation Subset: IM |
Copyright Information:
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© 2010, Wiley Periodicals, Inc. |
Affiliation:
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Cardiology Department, Hospital Clínico San Carlos, Madrid, Spain. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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