High-density collagen patch prevents stricture after endoscopic circumferential submucosal dissection of the esophagus: a porcine model - 20/04/17
Abstract |
Background and Aims |
Extensive excision of the esophageal mucosa by endoscopic submucosal dissection (ESD) frequently evokes a luminal stricture. This study aimed to determine the efficacy of a high-density collagen patch for the prevention of esophageal stricture in extensive ESD.
Methods |
Six pigs underwent circumferential esophageal ESD under general anesthesia. In 3 pigs, artificial ulcers were covered by 2 collagen patches. The other 3 pigs underwent circumferential ESD only.
Results |
The 2 collagen patches were settled onto the ulcer surface using a general endoscope and instruments. The collagen patch-treated group showed significantly better patency rates on both the oral and anal sides of the wound area compared with the control group at day 14. The mucosal re-epithelization ratio was significantly promoted, and the extent of mucosal inflammation and fibrosis was significantly decreased with the collagen patch treatment in the wound area. The frequency of cells positive α-smooth muscle actin was significantly reduced in the collagen patch-treated group compared with the control group.
Conclusions |
We have established a high-density collagen device that can reduce the esophageal stricture associated with extensive ESD. This easy-to-handle device would be useful during superficial esophageal cancer treatment by ESD.
Le texte complet de cet article est disponible en PDF.Abbreviations : αSMA, CVP, CTGF, ESD, HE, MD, ND, PSR
Plan
| DISCLOSURE: All authors disclosed no financial relationships relevant to this publication. |
Vol 85 - N° 5
P. 1076-1085 - mai 2017 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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