Document Detail


Stenting for curved lesions using a novel curved balloon: Preliminary experimental study.
MedLine Citation:
PMID:  25467919     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Stenting may be a compelling approach to dilating curved lesions in congenital heart diseases. However, balloon-expandable stents, which are commonly used for congenital heart diseases, are usually deployed in a straight orientation. In this study, we evaluated the effect of stenting with a novel curved balloon considered to provide better conformability to the curved-angled lesion.
MATERIALS AND METHODS: In vitro experiments: A Palmaz Genesis(®) stent (Johnson & Johnson, Cordis Co, Bridgewater, NJ, USA) mounted on the Goku(®) curve (Tokai Medical Co. Nagoya, Japan) was dilated in vitro to observe directly the behavior of the stent and balloon assembly during expansion. Animal experiment: A short Express(®) Vascular SD (Boston Scientific Co, Marlborough, MA, USA) stent and a long Express(®) Vascular LD stent (Boston Scientific) mounted on the curved balloon were deployed in the curved vessel of a pig to observe the effect of stenting in vivo.
RESULTS: In vitro experiments: Although the stent was dilated in a curved fashion, stent and balloon assembly also rotated conjointly during expansion of its curved portion.
ANIMAL EXPERIMENT: In the primary stenting of the short stent, the stent was dilated with rotation of the curved portion. The excised stent conformed to the curved vessel. As the long stent could not be negotiated across the mid-portion with the balloon in expansion when it started curving, the mid-portion of the stent failed to expand fully. Furthermore, the balloon, which became entangled with the stent strut, could not be retrieved even after complete deflation.
CONCLUSION: This novel curved balloon catheter might be used for implantation of the short stent in a curved lesion; however, it should not be used for primary stenting of the long stent. Post-dilation to conform the stent to the angled vessel would be safer than primary stenting irrespective of stent length.
Authors:
Hideshi Tomita; Takashi Higaki; Toshiki Kobayashi; Takanari Fujii; Kazuto Fujimoto
Related Documents :
22774919 - Mesenteric arteries responsiveness to acute variations of wall shear stress is impaired...
22390889 - An easy adjustable method of ectatic vertebrobasilar artery transposition for microvasc...
22329709 - Premature closure of the foramen ovale secondary to congenital aortic valvular stenosis...
22675159 - Aortic coarctations and coronary artery disease: the xy factor.
22457679 - Comparison of mid-term outcomes of carotid artery stenting for moderate versus critical...
18091549 - Prospective study of peripheral arterial catheter infection and comparison with concurr...
22497309 - Pulmonary artery bypass for in-stent stenosis following angioplasty for isolated pulmon...
12623599 - A case of spontaneous coronary artery disease regression.
1712579 - Atrioventricular septal defect repair in infants.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-11-6
Journal Detail:
Title:  Journal of cardiology     Volume:  -     ISSN:  1876-4738     ISO Abbreviation:  J Cardiol     Publication Date:  2014 Nov 
Date Detail:
Created Date:  2014-12-3     Completed Date:  -     Revised Date:  2014-12-4    
Medline Journal Info:
Nlm Unique ID:  8804703     Medline TA:  J Cardiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Second-line outcomes in metastatic colorectal cancer - raising the bar for the high jump rather than...
Next Document:  Correlations of arterial stiffness/central hemodynamics with serum cardiac troponin T and natriureti...