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      Atrial septal defect closure complicated by anomalous inferior vena cava return to the left atrium: a case report of a 5-year-old child

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          Abstract

          Background

          The anatomy of the sinus venosus atrial septal defect (ASD) of the inferior vena caval type is complex. Limited rate of complications during its closure has been described. One of the unusual complications, with few case reports, is the iatrogenic diversion of the inferior vena cava (IVC) to the left atrium (LA).

          Case summary 

          We report the case of a 5-year-old boy who underwent previous surgical closure of sinus venosus ASD of the inferior vena caval type aged 2 years. Three years after surgery, he was diagnosed as having iatrogenic diversion of the IVC to the LA.

          Discussion 

          Cardiologists and cardiac surgeons should be aware of this rare but significant complication following routine ASD surgical repair and vigilant follow-up should be performed routinely.

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          Most cited references12

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          Residual right-to-left shunt following repair of atrial septal defect.

          Information about 5 patients with residual right-to-left shunts following repair of an atrial septal defect is presented. In each patient the defect was located low in the atrial septum adjacent to the inferior vena cava. During operation, either the eustachian valve of the inferior vena cava had been mistaken for the lower margin of the defect or the lower portion of the defect was not closed; blood flow was then diverted from the inferior vena cava into the left atrium. To prevent this occurrence, the inferior margin of the atrial septal defect should be closed first.
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            Iatrogenic cyanosis and clubbing: 25 years of chronic hypoxia after the repair of an atrial septal defect.

            A case of sinus venosus atrial septal defect repair of the inferior vena caval type with an unintentional diversion of the inferior vena caval blood to the left atrium is reported. Long-standing, anatomical, right-to-left shunting with cyanosis and hypoxia are associated with systemic and cerebrovascular complications. Cardiac risks depend on the presence or absence of pulmonary hypertension, the associated hematological abnormalities and the degree of anatomical, right-to-left shunting. Cardiac magnetic resonance imaging clarified the etiology of the unexplained cyanosis and delineated the surgical anatomy.
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              Iatrogenic diversion of IVC to left atrium after surgical closure of ASD

              Iatrogenic diversion of the inferior vena cava (IVC) to the left atrium during surgical closure of an atrial septal defect (ASD) is a very rare complication in the era of cardiopulmonary bypass. The eustachian valve could be mistaken for the margin of the ASD. We report a case with this complication after closure of a sinus venosus ASD of the IVC type.

                Author and article information

                Contributors
                Role: Handling Editor
                Role: Editor
                Role: Editor
                Role: Editor
                Role: Editor
                Role: Editor
                Journal
                Eur Heart J Case Rep
                Eur Heart J Case Rep
                ehjcr
                European Heart Journal: Case Reports
                Oxford University Press
                2514-2119
                June 2019
                24 May 2019
                24 May 2019
                : 3
                : 2
                : yty169
                Affiliations
                Pediatric Cardiology Department, American University of Beirut, 6th Floor, Room # 688 Cairo Street, Hamra, Beirut, Lebanon
                Author notes
                Corresponding author. Tel: +961 1 350000 (ext 5748), Fax: +961 1 370 781, Email: ma81@ 123456aub.edu.lb
                Article
                yty169
                10.1093/ehjcr/yty169
                6601233
                bed5aa74-d037-40fb-80b4-cab2cc2b717c
                © The Author(s) 2019. Published by Oxford University Press on behalf of the European Society of Cardiology.

                This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

                History
                : 08 August 2018
                : 16 May 2019
                Page count
                Pages: 4
                Categories
                Case Reports

                case report,atrial septal defect,inferior vena cava,left atrium,surgical asd closure

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