| Patterns of ventricular contraction in patients with conduction abnormality studied by radionuclide angiocardiography. | |
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MedLine Citation:
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PMID: 6202309 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The phase image generated by radionuclide angiocardiography illustrates the regional timing of ventricular wall motion. In this study the phase image was used to investigate the patterns of ventricular contraction in 103 subjects with either normal hearts or a conduction abnormality. In 38 normal subjects the right ventricle contracted on average 7 ms after the left, and the last region to contract was the right ventricular outflow tract. In 15 subjects with left bundle branch block the left ventricle contracted 69 ms after the right, contraction spreading from the septum to the lateral wall. In 12 subjects with right bundle branch block right ventricular contraction occurred 54 ms after the left. In 11 subjects with right bundle branch block and left anterior fascicular block both right and left ventricular contraction were delayed, the right more so than the left. In three of five subjects with the Wolff-Parkinson-White syndrome and four with frequent ventricular extrasystoles areas of early contraction corresponded to areas of early depolarisation. It is concluded that ventricular contraction can be studied non-invasively and follows a pattern to be expected from the pattern of electrical depolarisation. |
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Authors:
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S R Underwood; S Walton; P J Laming; P J Ell; R W Emanuel; R H Swanton |
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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: British heart journal Volume: 51 ISSN: 0007-0769 ISO Abbreviation: Br Heart J Publication Date: 1984 May |
Date Detail:
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Created Date: 1984-07-06 Completed Date: 1984-07-06 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 0370634 Medline TA: Br Heart J Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 568-74 Citation Subset: AIM; IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Cardiac Complexes, Premature
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physiopathology Cardiac Pacing, Artificial Heart / radionuclide imaging Heart Block / physiopathology, radionuclide imaging* Heart Conduction System / physiopathology Heart Ventricles / physiopathology Humans Myocardial Contraction* Sodium Pertechnetate Tc 99m Technetium / diagnostic use |
| Chemical | |
Reg. No./Substance:
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23288-60-0/Sodium Pertechnetate Tc 99m; 7440-26-8/Technetium |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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