To Investigate the Effect of Targeted Overdilation in Balloon-Expandable Stents

Jennifer Wong, Elliot Backer, Joseph C Keenan, Huseyin Erhan Dincer, Roy Joseph Cho Interventional Pulmonology Division, Department of Pulmonary, Allergy, Critical Care and Sleep Medicine, University of Minnesota, Minneapolis, MN, USACorrespondence: Roy Joseph Cho Tel +1 612-626-2637Email choxx548@u...

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Autores principales:	Wong J, Backer E, Keenan JC, Dincer HE, Cho RJ
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2021
Materias:	airway stenosis tracheobronchial disease interventional pulmonary airway stent balloon expandable stent airway balloon dilation Medical technology R855-855.5
Acceso en línea:	https://doaj.org/article/3008c0f77eea488e9e2cfc9fc8ebeea5
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spelling	oai:doaj.org-article:3008c0f77eea488e9e2cfc9fc8ebeea52021-12-02T19:35:47ZTo Investigate the Effect of Targeted Overdilation in Balloon-Expandable Stents1179-1470https://doaj.org/article/3008c0f77eea488e9e2cfc9fc8ebeea52021-10-01T00:00:00Zhttps://www.dovepress.com/to-investigate-the-effect-of-targeted-overdilation-in-balloon-expandab-peer-reviewed-fulltext-article-MDERhttps://doaj.org/toc/1179-1470Jennifer Wong, Elliot Backer, Joseph C Keenan, Huseyin Erhan Dincer, Roy Joseph Cho Interventional Pulmonology Division, Department of Pulmonary, Allergy, Critical Care and Sleep Medicine, University of Minnesota, Minneapolis, MN, USACorrespondence: Roy Joseph Cho Tel +1 612-626-2637Email choxx548@umn.eduPurpose: Balloon-expandable stents are commonly used for the treatment of tracheobronchial strictures. We routinely perform targeted overdilation of these stents 1– 2mm on initial deployment to prevent stent migration or allow foreshortening to target airway caliber; however, specific data on the effect of targeted overdilation is unknown.Patients and Methods: We used three iCAST stents (6× 22mm, 7× 22mm, and 10× 38mm) to perform the study. We had two sets of each size to average our results. Targeted overdilation was accomplished with Merit Elation balloons.Results: The 6 × 22 and 7 × 22 stent OD increased from 6 to 11.4mm and 7 to 11.6mm. The 10 × 38 stent demonstrated minimal OD change with overdilation (OD change of 10.4 to 12.2mm). All stents demonstrated significant foreshortening with overdilation (20.2 to 5.65mm, 19.4 to 6mm, and 30.9 to 10.2mm for 6 × 22, 7 × 22, and 10 × 38, respectively). The breakpoint was seen at near twice the stated stent OD (13.5mm, 15mm, and 15mm with 6 × 22, 7 × 22 and 10 × 38, respectively).Conclusion: We have demonstrated that iCAST stents can increase their OD with subsequent foreshortening during targeted overdilation. This data can help facilitate decisions when selecting a particular iCAST stent for a specific airway application. Additionally, we have highlighted that balloon inflation diameter does not correspond to the actual stent OD during deployment. We believe that this data offers practical information for end-users of this stent type and additional data will be needed to corroborate our findings.Keywords: airway stenosis, tracheobronchial disease, interventional pulmonary, airway stent, balloon expandable stent, airway balloon dilationWong JBacker EKeenan JCDincer HECho RJDove Medical Pressarticleairway stenosistracheobronchial diseaseinterventional pulmonaryairway stentballoon expandable stentairway balloon dilationMedical technologyR855-855.5ENMedical Devices: Evidence and Research, Vol Volume 14, Pp 321-325 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	airway stenosis tracheobronchial disease interventional pulmonary airway stent balloon expandable stent airway balloon dilation Medical technology R855-855.5
spellingShingle	airway stenosis tracheobronchial disease interventional pulmonary airway stent balloon expandable stent airway balloon dilation Medical technology R855-855.5 Wong J Backer E Keenan JC Dincer HE Cho RJ To Investigate the Effect of Targeted Overdilation in Balloon-Expandable Stents
description	Jennifer Wong, Elliot Backer, Joseph C Keenan, Huseyin Erhan Dincer, Roy Joseph Cho Interventional Pulmonology Division, Department of Pulmonary, Allergy, Critical Care and Sleep Medicine, University of Minnesota, Minneapolis, MN, USACorrespondence: Roy Joseph Cho Tel +1 612-626-2637Email choxx548@umn.eduPurpose: Balloon-expandable stents are commonly used for the treatment of tracheobronchial strictures. We routinely perform targeted overdilation of these stents 1– 2mm on initial deployment to prevent stent migration or allow foreshortening to target airway caliber; however, specific data on the effect of targeted overdilation is unknown.Patients and Methods: We used three iCAST stents (6× 22mm, 7× 22mm, and 10× 38mm) to perform the study. We had two sets of each size to average our results. Targeted overdilation was accomplished with Merit Elation balloons.Results: The 6 × 22 and 7 × 22 stent OD increased from 6 to 11.4mm and 7 to 11.6mm. The 10 × 38 stent demonstrated minimal OD change with overdilation (OD change of 10.4 to 12.2mm). All stents demonstrated significant foreshortening with overdilation (20.2 to 5.65mm, 19.4 to 6mm, and 30.9 to 10.2mm for 6 × 22, 7 × 22, and 10 × 38, respectively). The breakpoint was seen at near twice the stated stent OD (13.5mm, 15mm, and 15mm with 6 × 22, 7 × 22 and 10 × 38, respectively).Conclusion: We have demonstrated that iCAST stents can increase their OD with subsequent foreshortening during targeted overdilation. This data can help facilitate decisions when selecting a particular iCAST stent for a specific airway application. Additionally, we have highlighted that balloon inflation diameter does not correspond to the actual stent OD during deployment. We believe that this data offers practical information for end-users of this stent type and additional data will be needed to corroborate our findings.Keywords: airway stenosis, tracheobronchial disease, interventional pulmonary, airway stent, balloon expandable stent, airway balloon dilation
format	article
author	Wong J Backer E Keenan JC Dincer HE Cho RJ
author_facet	Wong J Backer E Keenan JC Dincer HE Cho RJ
author_sort	Wong J
title	To Investigate the Effect of Targeted Overdilation in Balloon-Expandable Stents
title_short	To Investigate the Effect of Targeted Overdilation in Balloon-Expandable Stents
title_full	To Investigate the Effect of Targeted Overdilation in Balloon-Expandable Stents
title_fullStr	To Investigate the Effect of Targeted Overdilation in Balloon-Expandable Stents
title_full_unstemmed	To Investigate the Effect of Targeted Overdilation in Balloon-Expandable Stents
title_sort	to investigate the effect of targeted overdilation in balloon-expandable stents
publisher	Dove Medical Press
publishDate	2021
url	https://doaj.org/article/3008c0f77eea488e9e2cfc9fc8ebeea5
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To Investigate the Effect of Targeted Overdilation in Balloon-Expandable Stents

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