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Veno-venous bridges: the forerunners of the sinus venosus defect

Published online by Cambridge University Press:  24 May 2011

Ryan J. Butts ,
Andrew M. Crean ,
Anthony M. Hlavacek ,
Diane E. Spicer ,
Andrew C. Cook ,
Erwin N. Oechslin  and
Robert H. Anderson
Ryan J. Butts*
Affiliation:
Department of Pediatric Cardiology, Medical University of South Carolina, Charleston, South Carolina, United States of America
Andrew M. Crean
Affiliation:
Division of Cardiology, Toronto Congenital Cardiac Centre for Adults, University Health Network, Toronto General Hospital, Toronto, Canada Department of Medical Imaging, Peter Munk Cardiac Centre, University Health Network, Toronto General Hospital, Toronto, Canada
Anthony M. Hlavacek
Affiliation:
Department of Pediatric Cardiology, Medical University of South Carolina, Charleston, South Carolina, United States of America
Diane E. Spicer
Affiliation:
Department of Pediatrics, Division of Pediatric Cardiology, University of Florida, Gainesville, Flordia, United States of America The Congenital Heart Institute of Florida, St. Petersburg, Flordia, United States of America
Andrew C. Cook
Affiliation:
Cardiac Unit, Institute of Child Health, University College, London, United Kingdom
Erwin N. Oechslin
Affiliation:
Division of Cardiology, Toronto Congenital Cardiac Centre for Adults, University Health Network, Toronto General Hospital, Toronto, Canada Department of Medical Imaging, Peter Munk Cardiac Centre, University Health Network, Toronto General Hospital, Toronto, Canada
Robert H. Anderson
Affiliation:
Department of Pediatric Cardiology, Medical University of South Carolina, Charleston, South Carolina, United States of America Cardiac Unit, Institute of Child Health, University College, London, United Kingdom
*
Correspondence to: Dr R. Butts, Department of Pediatrics, Medical University of South Carolina, 171 Ashley Avenue, Charleston, South Carolina 29425, United States of America. Tel: 843 792 3286; Fax: 843 792 3284; E-mail: [email protected]
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Abstract

Background

Differentiation of the so-called sinus venosus defect from other defects permitting shunting between the atrial chambers remains problematic. The lesion is not a true septal defect, and current theories to explain the existence of the sinus venosus defect fall short. The presence of persistent systemic to pulmonary venous connections has been proposed to explain the existence of the sinus venosus defect.

Methods

Clinical histories and radiological findings of six patients are reviewed. Three patients have veno-venous bridges, two have partial anomalous pulmonary venous connections, and one patient has a sinus venosus defect. The clinical information is reviewed, along with current developmental and morphological considerations.

Discussion

We provide radiographic, developmental, and morphological evidence to support the theory that a so-called sinus venosus defect is the consequence of persistence of foetal systemic to pulmonary veno-venous bridges, rather than of deficiencies in atrial septation.

Keywords

Interatrial communicationatrial septal defectsanomalous pulmonary venous connectionscomputed tomography
Type
Original Articles
Information
Cardiology in the Young , Volume 21 , Issue 6 , 28 October 2011 , pp. 623 - 630
Copyright
Copyright © Cambridge University Press 2011

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