Document Detail


U wave: facts, hypotheses, misconceptions, and misnomers.
MedLine Citation:
PMID:  9817564     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The clinical significance of U wave is limited to the occasional obfuscation of the end of T wave and an inadequately explained U wave inversion associated with myocardial ischemia, infarction, and ventricular hypertrophy and dilatation. Lengthening of QT interval often interferes with the recognition of U wave. The characteristics of U wave are not compatible with the Purkinje or ventricular muscle repolarization hypotheses. The timing of the U wave during ventricular relaxation and the links between U wave and mechanical events favor the mechanoelectrical hypothesis of U wave genesis. Unfortunately, little research has been done to test this hypothesis.
Authors:
B Surawicz
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Publication Detail:
Type:  Comparative Study; Journal Article; Review    
Journal Detail:
Title:  Journal of cardiovascular electrophysiology     Volume:  9     ISSN:  1045-3873     ISO Abbreviation:  J. Cardiovasc. Electrophysiol.     Publication Date:  1998 Oct 
Date Detail:
Created Date:  1999-01-22     Completed Date:  1999-01-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9010756     Medline TA:  J Cardiovasc Electrophysiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1117-28     Citation Subset:  IM    
Affiliation:
Krannert Institute of Cardiology, Indiana University School of Medicine, Indianapolis, USA.
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MeSH Terms
Descriptor/Qualifier:
Action Potentials
Adult
Biomechanics
Cardiomegaly / complications,  physiopathology
Cardiomyopathy, Dilated / complications,  physiopathology
Diastole
Electrocardiography*
Female
Heart Conduction System / physiopathology*
Heart Rate
Heart Ventricles / physiopathology*
Humans
Male
Myocardial Ischemia / complications,  physiopathology
Tachycardia, Ventricular / etiology,  physiopathology*

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


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