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

Butts, RJ; Crean, AM; Hlavacek, AM; Spicer, DE; Cook, AC; Oechslin, EN; Anderson, RH; (2011) Veno-venous bridges: the forerunners of the sinus venosus defect. CARDIOLOGY IN THE YOUNG , 21 (6) 623 - 630. 10.1017/S1047951111000710.

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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.

Type:Article
Title:Veno-venous bridges: the forerunners of the sinus venosus defect
DOI:10.1017/S1047951111000710
Publisher version:http://dx.doi.org/10.1017/S1047951111000710
Language:English
Additional information:PubMed ID: 21729517
Keywords:Interatrial communication, atrial septal defects, anomalous pulmonary venous connections, computed tomography
UCL classification:UCL > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science

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