Conus branch artery utilization in percutaneous coronary intervention for chronic total occlusion

Abstract Data on the prevalence of conus branch artery (CBA) is scarce, and its utilization in percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) is non-existing. The present study examined carefully in a large cohort the angiographic prevalence of CBA, its role as a collater...

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Main Authors: Shih-Wei Meng, Ching-Chang Huang, Chih-Kuo Lee, Chun-Kai Chen, Chih-Fan Yeh, Ying-Hsien Chen, Mao-Shin Lin, Hsien-Li Kao
Format: Article
Language:English
Published: Nature Portfolio 2022-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-10984-5
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author Shih-Wei Meng
Ching-Chang Huang
Chih-Kuo Lee
Chun-Kai Chen
Chih-Fan Yeh
Ying-Hsien Chen
Mao-Shin Lin
Hsien-Li Kao
author_facet Shih-Wei Meng
Ching-Chang Huang
Chih-Kuo Lee
Chun-Kai Chen
Chih-Fan Yeh
Ying-Hsien Chen
Mao-Shin Lin
Hsien-Li Kao
author_sort Shih-Wei Meng
collection DOAJ
description Abstract Data on the prevalence of conus branch artery (CBA) is scarce, and its utilization in percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) is non-existing. The present study examined carefully in a large cohort the angiographic prevalence of CBA, its role as a collateral channel for the occlusion, and the potential usage of CBA in contemporary CTO PCI. We retrospectively examined consecutive CTO PCIs from our database between 2016 and 2019. All CTO PCIs were evaluated and the results with complications were recorded to determine the prevalence and utilization of CBA. From January 2016 to December 2019, a total of 556 CTO PCI attempts in 546 patients by high-volume operators were enrolled. The clinical, angiographic, and procedural details were collected. CBA was identifiable in 85.3% of these patients, and CBA providing visible collaterals connected to CTO distal lumen was found in 27.8% of patients. 84 CBA were used for balloon anchoring, 17 for selective distal true lumen visualization, and 9 as actual retrograde interventional collateral channel during CTO PCI. Only 1 patient suffered from chest pain during CBA balloon anchoring, and no other procedural complication such as arrhythmia or perforation occurred.CBA is frequently seen in coronary CTO. Its existence provided potential for various CTO PCI technique applications, without increase in risk.
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spelling doaj.art-dcc61be669f24dd4b4d78df094f6a03a2022-12-22T02:23:52ZengNature PortfolioScientific Reports2045-23222022-05-011211710.1038/s41598-022-10984-5Conus branch artery utilization in percutaneous coronary intervention for chronic total occlusionShih-Wei Meng0Ching-Chang Huang1Chih-Kuo Lee2Chun-Kai Chen3Chih-Fan Yeh4Ying-Hsien Chen5Mao-Shin Lin6Hsien-Li Kao7Department of Internal Medicine, National Taiwan University Hospital, Hsin-Chu BranchDepartment of Internal Medicine, National Taiwan University HospitalDepartment of Internal Medicine, National Taiwan University Hospital, Hsin-Chu BranchDepartment of Internal Medicine, National Taiwan University Hospital, Hsin-Chu BranchDepartment of Internal Medicine, National Taiwan University HospitalDepartment of Internal Medicine, National Taiwan University HospitalDepartment of Internal Medicine, National Taiwan University HospitalDepartment of Internal Medicine, National Taiwan University HospitalAbstract Data on the prevalence of conus branch artery (CBA) is scarce, and its utilization in percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) is non-existing. The present study examined carefully in a large cohort the angiographic prevalence of CBA, its role as a collateral channel for the occlusion, and the potential usage of CBA in contemporary CTO PCI. We retrospectively examined consecutive CTO PCIs from our database between 2016 and 2019. All CTO PCIs were evaluated and the results with complications were recorded to determine the prevalence and utilization of CBA. From January 2016 to December 2019, a total of 556 CTO PCI attempts in 546 patients by high-volume operators were enrolled. The clinical, angiographic, and procedural details were collected. CBA was identifiable in 85.3% of these patients, and CBA providing visible collaterals connected to CTO distal lumen was found in 27.8% of patients. 84 CBA were used for balloon anchoring, 17 for selective distal true lumen visualization, and 9 as actual retrograde interventional collateral channel during CTO PCI. Only 1 patient suffered from chest pain during CBA balloon anchoring, and no other procedural complication such as arrhythmia or perforation occurred.CBA is frequently seen in coronary CTO. Its existence provided potential for various CTO PCI technique applications, without increase in risk.https://doi.org/10.1038/s41598-022-10984-5
spellingShingle Shih-Wei Meng
Ching-Chang Huang
Chih-Kuo Lee
Chun-Kai Chen
Chih-Fan Yeh
Ying-Hsien Chen
Mao-Shin Lin
Hsien-Li Kao
Conus branch artery utilization in percutaneous coronary intervention for chronic total occlusion
Scientific Reports
title Conus branch artery utilization in percutaneous coronary intervention for chronic total occlusion
title_full Conus branch artery utilization in percutaneous coronary intervention for chronic total occlusion
title_fullStr Conus branch artery utilization in percutaneous coronary intervention for chronic total occlusion
title_full_unstemmed Conus branch artery utilization in percutaneous coronary intervention for chronic total occlusion
title_short Conus branch artery utilization in percutaneous coronary intervention for chronic total occlusion
title_sort conus branch artery utilization in percutaneous coronary intervention for chronic total occlusion
url https://doi.org/10.1038/s41598-022-10984-5
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