| Hemodynamic stress echocardiography in patients supported with a continuous-flow left ventricular assist device. | |
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MedLine Citation:
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PMID: 20705267 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Functional assessment of continuous-flow left ventricular assist devices (LVADs) is usually performed with the patient at rest. This study compared echocardiographic indices of contraction and filling pressure with invasive measures in 12 ambulatory LVAD patients undergoing symptom-limited bicycle exercise. Exercise induced an increase in cardiac output, systolic pulmonary artery pressure, and diastolic pulmonary artery pressure. Although no changes in left ventricular dimensions or fractional shortening were seen on echocardiography, systolic mitral annular motion (S') increased significantly (in parallel with cardiac output) and diastolic E/e' ratio decreased (correlating inversely with diastolic pulmonary artery pressure). These findings emphasize the potential role of exercise echocardiography in studying exercise hemodynamics in LVAD patients. |
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Authors:
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Mads Andersen; Finn Gustafsson; Per Lav Madsen; Patrice Brassard; Anette Schophuus Jensen; Niels Secher; Christian Hassager; Nikolai Nordsborg; Jacob Eifer Møller |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: JACC. Cardiovascular imaging Volume: 3 ISSN: 1876-7591 ISO Abbreviation: JACC Cardiovasc Imaging Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-08-13 Completed Date: 2010-12-07 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101467978 Medline TA: JACC Cardiovasc Imaging Country: United States |
Other Details:
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Languages: eng Pagination: 854-9 Citation Subset: IM |
Affiliation:
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Department of Cardiology, The Heart Center, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Blood Pressure Cardiac Output Denmark Echocardiography, Doppler* Echocardiography, Doppler, Pulsed Echocardiography, Stress* Female Heart Failure / physiopathology, therapy*, ultrasonography Heart-Assist Devices* Hemodynamics* Humans Male Middle Aged Mitral Valve / physiopathology, ultrasonography Myocardial Contraction Predictive Value of Tests Prosthesis Design Pulmonary Artery / physiopathology, ultrasonography Severity of Illness Index Ventricular Function, Left* Ventricular Pressure Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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