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Inflow from a Cardiopulmonary Assist System to the Pulmonary Artery and Its Implications for Local Hemodynamics—a Computational Fluid Dynamics Study

When returning blood to the pulmonary artery (PA), the inflow jet interferes with local hemodynamics. We investigated the consequences for several connection scenarios using transient computational fluid dynamics simulations. The PA was derived from CT data. Three aspects were varied: graft flow rat...

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Autores principales: Hugenroth, Kristin, Krooß, Felix, Hima, Flutura, Strudthoff, Lasse, Kopp, Rüdger, Arens, Jutta, Kalverkamp, Sebastian, Steinseifer, Ulrich, Neidlin, Michael, Spillner, Jan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10480287/
https://www.ncbi.nlm.nih.gov/pubmed/36662482
http://dx.doi.org/10.1007/s12265-022-10349-3
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author Hugenroth, Kristin
Krooß, Felix
Hima, Flutura
Strudthoff, Lasse
Kopp, Rüdger
Arens, Jutta
Kalverkamp, Sebastian
Steinseifer, Ulrich
Neidlin, Michael
Spillner, Jan
author_facet Hugenroth, Kristin
Krooß, Felix
Hima, Flutura
Strudthoff, Lasse
Kopp, Rüdger
Arens, Jutta
Kalverkamp, Sebastian
Steinseifer, Ulrich
Neidlin, Michael
Spillner, Jan
author_sort Hugenroth, Kristin
collection PubMed
description When returning blood to the pulmonary artery (PA), the inflow jet interferes with local hemodynamics. We investigated the consequences for several connection scenarios using transient computational fluid dynamics simulations. The PA was derived from CT data. Three aspects were varied: graft flow rate, anastomosis location, and inflow jet path length from anastomosis site to impingement on the PA wall. Lateral anastomosis locations caused abnormal flow distribution between the left and right PA. The central location provided near-physiological distribution but induced higher wall shear stress (WSS). All effects were most pronounced at high graft flows. A central location is beneficial regarding flow distribution, but the resulting high WSS might promote detachment of local thromboembolisms or influence the autonomic nervous innervation. Lateral locations, depending on jet path length, result in lower WSS at the cost of an unfavorable flow distribution that could promote pulmonary vasculature changes. Case-specific decisions and further research are necessary. GRAPHICAL ABSTRACT: [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s12265-022-10349-3.
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spelling pubmed-104802872023-09-07 Inflow from a Cardiopulmonary Assist System to the Pulmonary Artery and Its Implications for Local Hemodynamics—a Computational Fluid Dynamics Study Hugenroth, Kristin Krooß, Felix Hima, Flutura Strudthoff, Lasse Kopp, Rüdger Arens, Jutta Kalverkamp, Sebastian Steinseifer, Ulrich Neidlin, Michael Spillner, Jan J Cardiovasc Transl Res Original Article When returning blood to the pulmonary artery (PA), the inflow jet interferes with local hemodynamics. We investigated the consequences for several connection scenarios using transient computational fluid dynamics simulations. The PA was derived from CT data. Three aspects were varied: graft flow rate, anastomosis location, and inflow jet path length from anastomosis site to impingement on the PA wall. Lateral anastomosis locations caused abnormal flow distribution between the left and right PA. The central location provided near-physiological distribution but induced higher wall shear stress (WSS). All effects were most pronounced at high graft flows. A central location is beneficial regarding flow distribution, but the resulting high WSS might promote detachment of local thromboembolisms or influence the autonomic nervous innervation. Lateral locations, depending on jet path length, result in lower WSS at the cost of an unfavorable flow distribution that could promote pulmonary vasculature changes. Case-specific decisions and further research are necessary. GRAPHICAL ABSTRACT: [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s12265-022-10349-3. Springer US 2023-01-20 2023 /pmc/articles/PMC10480287/ /pubmed/36662482 http://dx.doi.org/10.1007/s12265-022-10349-3 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Original Article
Hugenroth, Kristin
Krooß, Felix
Hima, Flutura
Strudthoff, Lasse
Kopp, Rüdger
Arens, Jutta
Kalverkamp, Sebastian
Steinseifer, Ulrich
Neidlin, Michael
Spillner, Jan
Inflow from a Cardiopulmonary Assist System to the Pulmonary Artery and Its Implications for Local Hemodynamics—a Computational Fluid Dynamics Study
title Inflow from a Cardiopulmonary Assist System to the Pulmonary Artery and Its Implications for Local Hemodynamics—a Computational Fluid Dynamics Study
title_full Inflow from a Cardiopulmonary Assist System to the Pulmonary Artery and Its Implications for Local Hemodynamics—a Computational Fluid Dynamics Study
title_fullStr Inflow from a Cardiopulmonary Assist System to the Pulmonary Artery and Its Implications for Local Hemodynamics—a Computational Fluid Dynamics Study
title_full_unstemmed Inflow from a Cardiopulmonary Assist System to the Pulmonary Artery and Its Implications for Local Hemodynamics—a Computational Fluid Dynamics Study
title_short Inflow from a Cardiopulmonary Assist System to the Pulmonary Artery and Its Implications for Local Hemodynamics—a Computational Fluid Dynamics Study
title_sort inflow from a cardiopulmonary assist system to the pulmonary artery and its implications for local hemodynamics—a computational fluid dynamics study
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10480287/
https://www.ncbi.nlm.nih.gov/pubmed/36662482
http://dx.doi.org/10.1007/s12265-022-10349-3
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