Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation

Duct-dependent systemic circulation is accompanied by a right-to-left ductal shunt, at least during systole. Although observations of paradoxical continuous left-to-right shunts in duct-dependent systemic circulation have been reported, the mechanism remains unclear. We report a continuous left-to-r...

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Autores principales: Miyahara, Naoyuki, Hussein, Mohamed Hamed, Nishiguchi, Ryou, Kanai, Masayo, Ishiguro, Akio, Toda, Koichi, Kojima, Takuro, Yoshiba, Shigeki, Sumitomo, Naokata, Masutani, Satoshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Thieme Medical Publishers, Inc. 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9794415/
https://www.ncbi.nlm.nih.gov/pubmed/36582391
http://dx.doi.org/10.1055/a-1947-7501
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author Miyahara, Naoyuki
Hussein, Mohamed Hamed
Nishiguchi, Ryou
Kanai, Masayo
Ishiguro, Akio
Toda, Koichi
Kojima, Takuro
Yoshiba, Shigeki
Sumitomo, Naokata
Masutani, Satoshi
author_facet Miyahara, Naoyuki
Hussein, Mohamed Hamed
Nishiguchi, Ryou
Kanai, Masayo
Ishiguro, Akio
Toda, Koichi
Kojima, Takuro
Yoshiba, Shigeki
Sumitomo, Naokata
Masutani, Satoshi
author_sort Miyahara, Naoyuki
collection PubMed
description Duct-dependent systemic circulation is accompanied by a right-to-left ductal shunt, at least during systole. Although observations of paradoxical continuous left-to-right shunts in duct-dependent systemic circulation have been reported, the mechanism remains unclear. We report a continuous left-to-right ductal shunt throughout the cardiac cycle during the initial recovery phase from circulatory collapse and right ventricular (RV) dysfunction due to ductal closure in an infant with hypoplastic left heart and severe aortic coarctation. Further recovery improved his RV function and changed the ductal flow from continuous left-to-right to bidirectional, which is usually seen in duct-dependent systemic circulation. Marked RV dysfunction may contribute to the continuous left-to-right ductal shunt. A continuous left-to-right ductal shunt should not be used to rule out duct-dependent systemic circulation.
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spelling pubmed-97944152022-12-28 Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation Miyahara, Naoyuki Hussein, Mohamed Hamed Nishiguchi, Ryou Kanai, Masayo Ishiguro, Akio Toda, Koichi Kojima, Takuro Yoshiba, Shigeki Sumitomo, Naokata Masutani, Satoshi AJP Rep Duct-dependent systemic circulation is accompanied by a right-to-left ductal shunt, at least during systole. Although observations of paradoxical continuous left-to-right shunts in duct-dependent systemic circulation have been reported, the mechanism remains unclear. We report a continuous left-to-right ductal shunt throughout the cardiac cycle during the initial recovery phase from circulatory collapse and right ventricular (RV) dysfunction due to ductal closure in an infant with hypoplastic left heart and severe aortic coarctation. Further recovery improved his RV function and changed the ductal flow from continuous left-to-right to bidirectional, which is usually seen in duct-dependent systemic circulation. Marked RV dysfunction may contribute to the continuous left-to-right ductal shunt. A continuous left-to-right ductal shunt should not be used to rule out duct-dependent systemic circulation. Thieme Medical Publishers, Inc. 2022-12-27 /pmc/articles/PMC9794415/ /pubmed/36582391 http://dx.doi.org/10.1055/a-1947-7501 Text en The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. ( https://creativecommons.org/licenses/by-nc-nd/4.0/ ) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.
spellingShingle Miyahara, Naoyuki
Hussein, Mohamed Hamed
Nishiguchi, Ryou
Kanai, Masayo
Ishiguro, Akio
Toda, Koichi
Kojima, Takuro
Yoshiba, Shigeki
Sumitomo, Naokata
Masutani, Satoshi
Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation
title Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation
title_full Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation
title_fullStr Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation
title_full_unstemmed Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation
title_short Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation
title_sort paradoxical continuous left-to-right ductal shunt during circulatory collapse due to ductal closure in an infant with duct-dependent systemic circulation
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9794415/
https://www.ncbi.nlm.nih.gov/pubmed/36582391
http://dx.doi.org/10.1055/a-1947-7501
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