A case report of the clinical effect of chronic total occlusion recanalization on the instantaneous wave-free ratio in the donor artery

INTRODUCTION: Coronary physiology is recommended for guiding percutaneous coronary intervention (PCI). Previous cases have demonstrated changes in fractional flow reserve in a donor collateral vessel after PCI to a chronic total occlusion (CTO). The behaviour of instantaneous wave-free ratio (iFR) i...

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Autores principales: Ahmad, Yousif, Al-Lamee, Rasha, Davies, Justin, Sen, Sayan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2018
Materias:
Case Reports
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6177112/
https://www.ncbi.nlm.nih.gov/pubmed/31020109
http://dx.doi.org/10.1093/ehjcr/yty014
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author Ahmad, Yousif
Al-Lamee, Rasha
Davies, Justin
Sen, Sayan
author_facet Ahmad, Yousif
Al-Lamee, Rasha
Davies, Justin
Sen, Sayan
author_sort Ahmad, Yousif
collection PubMed
description INTRODUCTION: Coronary physiology is recommended for guiding percutaneous coronary intervention (PCI). Previous cases have demonstrated changes in fractional flow reserve in a donor collateral vessel after PCI to a chronic total occlusion (CTO). The behaviour of instantaneous wave-free ratio (iFR) in the context of CTO has not been described. CASE PRESENTATION: In this case, we share the first case of the effect of CTO recanalization on iFR in the donor artery, and show how iFR can reflect the amount of myocardium subtended by a stenosis. DISCUSSION: Instantaneous wave-free ratio is able to incorporate the amount of subtended myocardium in its quantification of coronary stenosis severity.
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spelling pubmed-61771122019-04-24 A case report of the clinical effect of chronic total occlusion recanalization on the instantaneous wave-free ratio in the donor artery Ahmad, Yousif Al-Lamee, Rasha Davies, Justin Sen, Sayan Eur Heart J Case Rep Case Reports INTRODUCTION: Coronary physiology is recommended for guiding percutaneous coronary intervention (PCI). Previous cases have demonstrated changes in fractional flow reserve in a donor collateral vessel after PCI to a chronic total occlusion (CTO). The behaviour of instantaneous wave-free ratio (iFR) in the context of CTO has not been described. CASE PRESENTATION: In this case, we share the first case of the effect of CTO recanalization on iFR in the donor artery, and show how iFR can reflect the amount of myocardium subtended by a stenosis. DISCUSSION: Instantaneous wave-free ratio is able to incorporate the amount of subtended myocardium in its quantification of coronary stenosis severity. Oxford University Press 2018-03-21 /pmc/articles/PMC6177112/ /pubmed/31020109 http://dx.doi.org/10.1093/ehjcr/yty014 Text en © The Author(s) 2018. Published by Oxford University Press on behalf of the European Society of Cardiology. http://creativecommons.org/licenses/by-nc/4.0/ 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
spellingShingle Case Reports
Ahmad, Yousif
Al-Lamee, Rasha
Davies, Justin
Sen, Sayan
A case report of the clinical effect of chronic total occlusion recanalization on the instantaneous wave-free ratio in the donor artery
title A case report of the clinical effect of chronic total occlusion recanalization on the instantaneous wave-free ratio in the donor artery
title_full A case report of the clinical effect of chronic total occlusion recanalization on the instantaneous wave-free ratio in the donor artery
title_fullStr A case report of the clinical effect of chronic total occlusion recanalization on the instantaneous wave-free ratio in the donor artery
title_full_unstemmed A case report of the clinical effect of chronic total occlusion recanalization on the instantaneous wave-free ratio in the donor artery
title_short A case report of the clinical effect of chronic total occlusion recanalization on the instantaneous wave-free ratio in the donor artery
title_sort case report of the clinical effect of chronic total occlusion recanalization on the instantaneous wave-free ratio in the donor artery
topic Case Reports
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6177112/
https://www.ncbi.nlm.nih.gov/pubmed/31020109
http://dx.doi.org/10.1093/ehjcr/yty014
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