Document Detail


Assessment of regional rotation patterns improves the understanding of the systolic and diastolic left ventricular function: an echocardiographic speckle-tracking study in healthy individuals.
MedLine Citation:
PMID:  18490292     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
METHODS AND RESULTS: Regional rotation in six subdivisions of the circumference at three levels was studied by using speckle-tracking echocardiography in 40 healthy subjects. At the basal level the inferoseptal segments rotated significantly more clockwise during systole than the opposing anterolateral segments. At the papillary level the inferoseptal segments differed significantly from the anterolateral segments, where the inferoseptal segments rotated clockwise and the anterolateral segments rotated counter-clockwise. The apical level showed significant difference in regional rotation only at aortic valve opening. In early systole, untwist before the main systolic twist was seen at the basal and apical levels; however, the duration of the basal untwist was much longer than that of the apical. The diastolic phases of rotation at the basal and apical levels matched the different filling phases.
CONCLUSION: Large regional differences in rotation are present at the basal and papillary levels in healthy subjects. The diastolic untwist matches the phases of both the E-wave and A-wave and seems to be related with intraventricular pressure differences, indicating that untwist plays an important role in the filling of the ventricle.
Authors:
Ulf Gustafsson; Per Lindqvist; Stellan Mörner; Anders Waldenström
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-05-01
Journal Detail:
Title:  European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology     Volume:  10     ISSN:  1532-2114     ISO Abbreviation:  Eur J Echocardiogr     Publication Date:  2009 Jan 
Date Detail:
Created Date:  2009-01-09     Completed Date:  2009-05-05     Revised Date:  2013-05-20    
Medline Journal Info:
Nlm Unique ID:  100890618     Medline TA:  Eur J Echocardiogr     Country:  England    
Other Details:
Languages:  eng     Pagination:  56-61     Citation Subset:  IM    
Affiliation:
Department of Clinical Physiology, Heart Centre, Umeå University Hospital, Umeå, Sweden. ulf.gustafsson@medicin.umu.se
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Analysis of Variance
Cohort Studies
Diastole / physiology
Echocardiography / methods*
Female
Heart Ventricles / ultrasonography*
Humans
Male
Middle Aged
Myocardial Contraction / physiology
Observer Variation
Probability
Reference Values
Rotation
Sensitivity and Specificity
Systole / physiology
Ventricular Function, Left / physiology*
Ventricular Pressure / physiology*
Young Adult
Comments/Corrections
Comment In:
Eur J Echocardiogr. 2009 Jan;10(1):46-7   [PMID:  18801724 ]

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


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