Document Detail

Two-dimensional echocardiographic anatomy of atrioventricular alignment discordance with situs concordance.
MedLine Citation:
PMID:  8427141     Owner:  NLM     Status:  MEDLINE    
Relationships between the atria and the ventricles are commonly described in terms of either atrioventricular (AV) alignments (or connections) or AV situs (i.e., the type of atrial situs and the type of ventricular situs or ventricular loop). With either method of analysis, only one type of AV relationship (situs or alignment) is diagnosed specifically and is considered to be predictive of the other type of AV relationship. The two-dimensional echocardiographic characteristics of two patients with incongruent AV situs and alignments are described for the first time. Patient 1 had situs solitus of the viscera and atria (S), ventricular D-loop (D), and solitus normally related great arteries (S), or (S,D,S) segmental combination with concordant AV situs. However, the right-sided right atrium drained into the inferior and right-sided left ventricle, and the left-sided left atrium drained into the superior and left-sided right ventricle. Hence AV alignment discordance was present. Patient 2 had visceroatrial situs solitus (S), ventricular D-loop (D), and double-outlet right ventricle with a rightward aortic valve (D), or (S,D,D) segmental set (AV situs concordance). Similar to patient 1, AV alignment discordance was demonstrated. In both patients the diagnosis was established by two-dimensional echocardiography and subsequently confirmed by cardiac catheterization. The key to accurate echocardiographic diagnosis of this congenital heart disease was independent analysis of the AV alignments and the segmental situs of the three main cardiac segments. This diagnosis was determined by scanning from the parasternal, subxiphoid, and apical windows.(ABSTRACT TRUNCATED AT 250 WORDS)
T Geva; S P Sanders; N A Ayres; M P O'Laughlin; I A Parness
Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  American heart journal     Volume:  125     ISSN:  0002-8703     ISO Abbreviation:  Am. Heart J.     Publication Date:  1993 Feb 
Date Detail:
Created Date:  1993-03-04     Completed Date:  1993-03-04     Revised Date:  2006-02-27    
Medline Journal Info:
Nlm Unique ID:  0370465     Medline TA:  Am Heart J     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  459-64     Citation Subset:  AIM; IM    
Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Houston 77030.
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MeSH Terms
Heart Atria / abnormalities*,  ultrasonography
Heart Catheterization
Heart Ventricles / abnormalities*,  ultrasonography
Levocardia / complications,  ultrasonography

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

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