A prospective, randomized trial of esophageal submucosal tunnel closure with a stent versus no closure to secure a transesophageal natural orifice transluminal endoscopic surgery access site.
Gastrointest Endosc
; 73(4): 785-90, 2011 Apr.
Article
en En
| MEDLINE
| ID: mdl-21288511
ABSTRACT
BACKGROUND:
Secure esophagotomy closure methods are a critical element in the advancement of transesophageal natural orifice transluminal endoscopic surgery (NOTES) procedures.OBJECTIVE:
To compare the clinical outcomes in swine receiving an esophageal stent or no stent after a submucosal tunnel NOTES access procedure.DESIGN:
Prospective, randomized, controlled trial in 10 Yorkshire swine.SETTING:
Academic center. INTERVENTION An endoscopic mucosectomy device was used to create an esophageal mucosal defect. An endoscope was advanced through a submucosal tunnel into the mediastinum and thorax, and diagnostic mediastinoscopy and thoracoscopy were performed. Ten animals were randomized to no stenting (n = 5) or stenting (n = 5) with a prototype small-intestine submucosa-covered stent. MAIN OUTCOME MEASUREMENTS Gross and histologic appearance of the mucosectomy and esophagotomy sites as well as clinical outcomes.RESULTS:
There was a significant difference in the overall procedure time between the animals that received a stent (35.0 min, range 27-46.0 min) and those with no closure (19.0 min, range 17-32 min) (P value = .018). The unstented group achieved endoscopic and histologic evidence of complete re-epithelialization and healing (100%) at the mucosectomy site compared with the stented group (20%, P = .048). Stent migration into the stomach occurred in two swine. Both groups had complete closure of the submucosal tunnel and well-healed esophagotomy sites.LIMITATIONS:
Animal study, small number of subjects.CONCLUSION:
The placement of a covered esophageal stent significantly interferes with mucosectomy site healing.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Toracoscopía
/
Stents
/
Disección
/
Esófago
/
Cirugía Endoscópica por Orificios Naturales
/
Mucosa Intestinal
Tipo de estudio:
Observational_studies
/
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Gastrointest Endosc
Año:
2011
Tipo del documento:
Article
País de afiliación:
Estados Unidos