Document Detail

Echocardiographic features of subpulmonic obstruction in dextro-transposition of the great vessels.
MedLine Citation:
PMID:  1169132     Owner:  NLM     Status:  MEDLINE    
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.
N C Nanda; R Gramiak; J A Manning; E O Lipchik
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Circulation     Volume:  51     ISSN:  0009-7322     ISO Abbreviation:  Circulation     Publication Date:  1975 Mar 
Date Detail:
Created Date:  1975-08-18     Completed Date:  1975-08-18     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0147763     Medline TA:  Circulation     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  515-21     Citation Subset:  AIM; IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Cardiomyopathy, Hypertrophic / physiopathology*
Child, Preschool
Ductus Arteriosus, Patent / complications
Heart Septal Defects, Ventricular / complications,  physiopathology
Heart Ventricles / physiopathology
Infant, Newborn
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

Previous Document:  Changes in renin, water balance, and sodium balance during development of high blood pressure in gen...
Next Document:  Operative treatment in hypertrophic subaortic stenosis. Techniques, and the results of pre and posto...