| Echocardiographic features of subpulmonic obstruction in dextro-transposition of the great vessels. | |
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MedLine Citation:
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PMID: 1169132 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Eleven patients with dextro-transposition of the great vessels (TGV) and subpulmonic (left ventriclar outflow) obstruction documented by cardiac catheterization and angiography were studied by echocardiography. Echocardiographic features were which characterized the outflow obstruction included a) prolonged diastolic apposition of the mitral valve with the ventricular septum (10 patients), b) smaller width of the pulmonary artery as compared to the aortic root (10 cases), and c) narrowing of the subpulmonic area demonstrated by beam anglation studies through the planes of the mitral valve and the pulmonary artery (five cases). In addition, four patients showed abnormal systolic anterior movements (SAMs) of the anterior mitral leaflet resembling those observed in idiopathic hypertrophic subaortic stenosis. The SAM'S WERE LARGE IN THREE PATIENTS AND MAY HAVE ACCENTUATED THE OUTFLOW OBSTRUCTION. Additional evidence for this was provided by the movement of the pulmonary valve towards closure with the onset of the mitral SAM'S. These features were uncommon or absent in a comparison group of 17 patients with TGV and no outflow obstruction. Echocardiography appears to be useful in the diagnosis of subpulmonic muscular obstruction in TGV. Demonstration of definite mitral SAM'S IN SOME PATIENTS SUGGEST THE PRESSENCE OF ASSOCIATED FUNCTIONAL OBSTRUCTION OF THE TYPE SEEN IN IDIOPATHIC HYPERTROPHIC SUBAORTIC STENOSIS. |
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Authors:
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N C Nanda; R Gramiak; J A Manning; E O Lipchik |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Circulation Volume: 51 ISSN: 0009-7322 ISO Abbreviation: Circulation Publication Date: 1975 Mar |
Date Detail:
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Created Date: 1975-08-18 Completed Date: 1975-08-18 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0147763 Medline TA: Circulation Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 515-21 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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Adolescent Cardiomyopathy, Hypertrophic / physiopathology* Child Child, Preschool Ductus Arteriosus, Patent / complications Echocardiography* Female Heart Septal Defects, Ventricular / complications, physiopathology Heart Ventricles / physiopathology Humans Hypertrophy Infant Infant, Newborn Male Mitral Valve / physiopathology Pulmonary Artery / physiopathology Pulmonary Subvalvular Stenosis / complications, diagnosis, physiopathology* Pulmonary Valve Stenosis / complications Transposition of Great Vessels / complications*, diagnosis |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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