File:Complete atrioventricular canal.jpg

Echocardiography of Complete atrioventricular canal

CAVC is a complex cardiac malformation characterised by a variable deficiency of the atrioventricular area (crux cordis) in the developing heart. The malformation involves the atrial, ventricular and atrioventricular septa and both atrioventricular valves.

Anatomic classification of CAVC:

• Type A - the superior bridging leaflet is almost completely adherent to the left ventricle and is firmly attached on the ventricular septum by multiple chordal insertions
• Type B - the superior bridging leaflet is attached over the ventricular septum by an anomalous papillary muscle of the right ventricle
• Type C - the superior bridging leaflet is not attached to the ventricular septum (free-floating leaflet)

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Reference

Complete atrioventricular canal. Calabrò R, Limongelli G. Orphanet J Rare Dis. 2006 Apr 5;1:8. PMID: 16722604 | PMC: 1459121

Published online 2006 April 5. doi: 10.1186/1750-1172-1-8.

Copyright © 2006 Calabrò and Limongelli; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.