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Surgical anatomy of the atrioventricular septum and atrioventricular septal defects

Published online by Cambridge University Press:  19 August 2008

G. William Henry  and
Benson R. Wilcox
G. William Henry*
Affiliation:
From the Departments of Pediatrics and Surgery of The University of North Carolina School of Medicine, Chapel Hill
Benson R. Wilcox
Affiliation:
From the Departments of Pediatrics and Surgery of The University of North Carolina School of Medicine, Chapel Hill
*
Dr. G. William Henry, Department of Pediatrics, CB 7220, 311 Burnert-Womack 229H, The University of North Carolina, Chapel Hill, North Carolina 27599-7220 USA. Tel. 919-966-4601.
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Summary

Defects of the atrioventricular septum impose changes in the septal architecture, atrioventricular valves, and conduction system that must be well understood for optimal repair. The atrioventricular node and bundles are shifted to more posterior and inferior positions that can be anticipated by the surgeon so as to maintain the integrity of atrioventricular conduction. The atrioventricular valve is a five leaflet structure that possesses a common orifice or separate orifices depending on characteristics of the superior and inferior bridging leaflets. These features are demonstrated by intraoperative photographs viewed from the surgeon's position.

Type
The World Forum for Pediatric Cardiology Symposium on Atrioventricular Septal Defect
Information
Cardiology in the Young , Volume 1 , Issue 4 , October 1991 , pp. 306 - 314
Copyright
Copyright © Cambridge University Press 1991

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