| Left ventricular function and hemodynamic features of inappropriate left ventricular hypertrophy in patients with systemic hypertension: the LIFE study. | |
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MedLine Citation:
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PMID: 11320367 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Predicted left ventricular (LV) mass for sex, height (2.7), and hemodynamic load can be used as an intrapatient reference for the observed LV mass. The ratio of observed/predicted LV mass may allow more physiologically correct comparisons of LV geometry, systolic and diastolic functions, and hemodynamics among hypertensive patients. METHODS: We studied 659 participants in the LIFE (Losartan Intervention for Endpoint Reduction in Hypertension) study with both electrocardiographic and echocardiographic LV hypertrophy (68% of the echocardiographic cohort) without previous myocardial infarction. LV mass was predicted by an equation including sex, stroke work, and height (2.7). Observed/predicted LV mass > 128% defined inappropriate LV hypertrophy (iLVH). Relative wall thickness > or = 0.43 defined concentric LV geometry. Systolic myocardial dysfunction was assessed by midwall mechanics and abnormal LV relaxation by isovolumic relaxation time (IVRT). RESULTS: Compared with patients with appropriate LV hypertrophy (aLVH), those with iLVH had higher body mass index, LV mass index, relative wall thickness, prevalences of systolic myocardial dysfunction and prolonged IVRT and lower end-systolic stress and cardiac index. Patients with eccentric iLVH had the highest wall stress and lowest ejection fraction; 43% had systolic myocardial dysfunction. Of patients with concentric iLVH, 79% had systolic myocardial dysfunction but normal ejection fraction and the lowest wall stress. Systolic myocardial dysfunction was present in 12% with concentric aLVH and none with eccentric aLVH. Prevalence of prolonged IVRT was high in all 4 groups (65% to 77%). Cardiac index was similarly lower with concentric or eccentric iLVH than with aLVH. CONCLUSIONS: Among hypertensives with LV hypertrophy, iLVH identified cardiac phenotypes with a high prevalence of myocardial systolic dysfunction. |
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Authors:
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V Palmieri; K Wachtell; E Gerdts; J N Bella; V Papademetriou; C Tuxen; M S Nieminen; B Dahlöf; G de Simone; R B Devereux |
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Publication Detail:
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Type: Clinical Trial; Comparative Study; Evaluation Studies; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: American heart journal Volume: 141 ISSN: 0002-8703 ISO Abbreviation: Am. Heart J. Publication Date: 2001 May |
Date Detail:
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Created Date: 2001-04-26 Completed Date: 2001-05-21 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0370465 Medline TA: Am Heart J Country: United States |
Other Details:
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Languages: eng Pagination: 784-91 Citation Subset: AIM; IM |
Affiliation:
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Weill Medical College of Cornell University, New York, NY, USA. vpalmier@med.cornell.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Antihypertensive Agents / therapeutic use* Disease Progression Echocardiography, Doppler Electrocardiography Female Heart Ventricles / drug effects, physiopathology, ultrasonography Hemodynamics* / drug effects, physiology Humans Hypertension / complications, drug therapy, physiopathology* Hypertrophy, Left Ventricular / etiology, physiopathology*, prevention & control Losartan / therapeutic use* Male Middle Aged Prognosis Ventricular Function, Left / drug effects, physiology |
| Chemical | |
Reg. No./Substance:
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0/Antihypertensive Agents; 114798-26-4/Losartan |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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