| Cardiac resynchronization results in aortic blood flow-associated changes in the arterial load components: basal biomechanical conditions determine the load changes. | |
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MedLine Citation:
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PMID: 20191680 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The cardiac resynchronization therapy (CRT)effects on the arterial load components, the mechanisms (i.e.haemodynamic changes-dependence) involved in the load reduction and the factors (i.e. basal load conditions) associated with the load changes after CRT, are to be evaluated. Aims: a)to analyze the potential changes in the arterial load components(peripheral resistances, arterial compliance and impedance)associated with the CRT, b) to determine if the load components changes are associated with variations in haemodynamic variables (pressure, heart rate or blood flow), c) to analyze the relationship between the load components basal state and their changes after CRT. To fulfill these aims cardiac and arterial structural and mechanical parameters were non-invasively evaluated in 8 heart failure patients, pre- and post-CRT (23+/-8 days). The main results were that short-term after CRT: 1)there were changes in the static and dynamic determinants of the arterial load; 2) the changes in the load components were not associated with heart rate or pressure variations, but with blood flow changes, and 3) the load components basal levels and their changes after CRT were associated. |
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Authors:
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Yanina Z?calo; Daniel Bia; Juan B Gonz?lez-Moreno; Juan Torrado; Gonzalo Varela; Fernando Calleriza; Dami?n Craiem; Walter Reyes-Caorsi; Ricardo L Armentano |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference Volume: 2009 ISSN: 1557-170X ISO Abbreviation: Conf Proc IEEE Eng Med Biol Soc Publication Date: 2009 |
Date Detail:
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Created Date: 2010-03-01 Completed Date: 2010-03-16 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101243413 Medline TA: Conf Proc IEEE Eng Med Biol Soc Country: United States |
Other Details:
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Languages: eng Pagination: 2843-7 Citation Subset: IM |
Affiliation:
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Physiology Department, School of Medicine, Universidad de la Rep?blica, Montevideo, Uruguay. yana@fmed.edu.uy |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aorta / pathology* Arteries / pathology* Biomechanics Biomedical Engineering / methods Blood Flow Velocity* Cardiac Pacing, Artificial / methods Cardiovascular Diseases / pathology Female Heart Failure / physiopathology, therapy Heart Ventricles / pathology Hemodynamics Humans Male Middle Aged Radiography, Thoracic |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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