Document Detail

Interval-dependent potentiation of left ventricular contractility is preserved in patients with atrial fibrillation and depressed ejection fraction.
MedLine Citation:
PMID:  11165975     Owner:  NLM     Status:  MEDLINE    
Echocardiographic techniques were used to measure left ventricular isovolumic and ejection phase indexes of contractility in 54 patients with atrial fibrillation, and the relations between cycle lengths and contractility were compared in patients with normal and depressed ejection fractions. Data indicate that variations in contractility occur in a pattern that is consistent with postextrasystolic potentiation and that such interval-dependent potentiation is preserved in patients with atrial fibrillation and depressed ejection fraction.
Y Nagahama; E C Schick; W H Gaasch
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American journal of cardiology     Volume:  87     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  2001 Feb 
Date Detail:
Created Date:  2001-02-08     Completed Date:  2001-02-22     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  342-6, A9     Citation Subset:  AIM; IM    
Department of Cardiovascular Medicine, Lahey Clinic, Burlington, Massachusetts, USA.
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MeSH Terms
Aged, 80 and over
Atrial Fibrillation / physiopathology*
Blood Flow Velocity / physiology
Cardiac Output, Low / physiopathology*
Echocardiography, Doppler
Middle Aged
Myocardial Contraction / physiology*
Stroke Volume / physiology*
Ventricular Function, Left / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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