New tubular bioabsorbable knitted airway stent: feasibility assessment for delivery and deployment in a dog model.
Ann Thorac Surg
; 78(4): 1438-40, 2004 Oct.
Article
em En
| MEDLINE
| ID: mdl-15464510
ABSTRACT
PURPOSE:
The aim of this study was to determine whether it is possible to deliver and deploy a new device, a poly-L-lactic acid (PLLA) tubular knitted airway stent, under bronchoscopic guidance in a dog model. DESCRIPTION The delivery system consisted of a flexible balloon catheter (controlled radial expansion balloon dilator, M00558440, Boston Scientific Corporation, MA, USA) preloaded with a stent. A delivery catheter preloaded with a stent was advanced to a target point in the trachea under bronchoscopic guidance. Once the stent was positioned, the balloon was inflated for sixty seconds. The stent was in full contact with the tracheal wall upon deflation of the balloon. EVALUATION The stents were successfully delivered into the tracheal lumen and successfully deployed in all dogs.CONCLUSIONS:
This is the first study to prove the feasibility of delivering and deploying the PLLA stents in a dog model, using a balloon expansion technique. Further investigation with large numbers of subjects and long-term follow-up will be necessary to assess the utility of the bioabsorbable knitted tubular stent before clinical applications begin.
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Temas:
ECOS
/
Aspectos_gerais
Bases de dados:
MEDLINE
Assunto principal:
Traqueia
/
Stents
/
Implantes Absorvíveis
Tipo de estudo:
Evaluation_studies
/
Guideline
Aspecto:
Implementation_research
Limite:
Animals
Idioma:
En
Revista:
Ann Thorac Surg
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Japão