Document Detail

Cross sectional echocardiographic assessment of the extent of the atrial septum relative to the atrioventricular junction in atrioventricular septal defect.
MedLine Citation:
PMID:  9922359     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To study patients with atrioventricular septal defect to determine the pathognomonic morphological features of the lesion and the relation between the septal structures and the atrioventricular junction. Setting : Tertiary level paediatric cardiology centre. METHODS: Cross sectional echocardiograms from 60 patients were reviewed using qualitative and quantitative analysis. The unifying feature was the presence of a common atrioventricular junction. The overall dimensions of the septal defect were determined and related to the plane of the common junction; the extent of both the atrial and the ventricular septal components was then measured according to the site of closure of the bridging leaflets. RESULTS: In 48 cases, the common junction was guarded by a common valvar orifice, but in 12 cases there were separate right and left valvar orifices. Irrespective of the valvar morphology, no significant difference was found between the groups in terms of the dimensions of the atrial and ventricular septal components. In all patients, the hole permitting shunting at atrial level extended below the plane of the atrioventricular junction, with a variable position of the leading edge of the atrial septum itself. CONCLUSIONS: The atrioventricular junction is a common structure irrespective of valvar morphology. In spite of the presence of unequivocal shunting at atrial level, the atrial septum is usually a well formed structure, even extending in some below the level of the common atrioventricular junction.
S Falcão; L Daliento; S Y Ho; M L Rigby; R H Anderson
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Heart (British Cardiac Society)     Volume:  81     ISSN:  1355-6037     ISO Abbreviation:  Heart     Publication Date:  1999 Feb 
Date Detail:
Created Date:  1999-06-03     Completed Date:  1999-06-03     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  9602087     Medline TA:  Heart     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  199-205     Citation Subset:  AIM; IM    
Paediatric Cardiology, Fundação Hospitalar de Brasilia, Brasil.
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MeSH Terms
Atrioventricular Node / ultrasonography*
Child, Preschool
Heart Septal Defects / physiopathology,  ultrasonography*
Heart Septum / ultrasonography*
Infant, Newborn
Retrospective Studies

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