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Divided left atrium with totally anomalous drainage of normally connected pulmonary veins

Lookup NU author(s): Professor Bob Anderson


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© The Author(s), 2022. Published by Cambridge University Press. In the December 2021 issue of Cardiology in the Young, Hubrechts and colleagues, from Brussels and Leuven in Belgium, describe their experience in which the pulmonary veins were normally connected to the morphologically left atrium. By virtue of the presence of a shelf dividing the morphologically left atrium, however, the venous return was to the morphologically right atrium, with no evidence of formation of the superior interatrial fold, meaning that there was no obstruction of flow into the systemic venous circulation. The question posed by the Belgian authors is whether the shelf dividing the morphologically left atrium is a deviated primary atrial septum, as the arrangement has previously been interpreted. As they discuss, it is currently impossible to arbitrate this conundrum. In our commentary, we discuss the background to the dilemma. We point out that, as yet, it is not possible to code accurately this congenital cardiac malformation within The International Paediatric and Congenital Cardiac Code (IPCCC), nor within the newly produced 11th Revision of the International Classification of Diseases (ICD-11).

Publication metadata

Author(s): Anderson RH, Jacobs JP, Franklin RCG

Publication type: Review

Publication status: Published

Journal: Cardiology in the Young

Year: 2022

Volume: 32

Issue: 4

Pages: 641-643

Online publication date: 29/04/2022

Acceptance date: 07/12/2021

ISSN (print): 1047-9511

ISSN (electronic): 1467-1107

Publisher: Cambridge University Press


DOI: 10.1017/S1047951121005163

PubMed id: 35485726