Simulating a target lesion for endoscopic submucosal dissection training in an ex vivo pig model - 04/08/11
Reprint requests: Dr Ming-Jen Chen, Mackay Memorial Hospital, Division of Gastroenterology, Department of Internal Medicine, No. 92, Sec. 2, Chungshan North Road, Taipei, TW 104 TaiwanRésumé |
Background |
Currently, there is no training model that simulates the target lesion encountered during endoscopic submucosal dissection.
Objective |
To develop a novel method simulating a target lesion for endoscopic submucosal dissection.
Design |
Training program with the use of an ex vivo porcine stomach model.
Setting |
Clinical skills training center.
Intervention |
A pseudopolyp was created by using an esophageal variceal ligation device to simulate a protruding (0-Ip) lesion, and the pseudopolyp was transected with a snare cautery to simulate a depressed (0-IIc) lesion.
Main Outcome Measurements |
Evaluate the histological depth of the target lesions and resected specimens.
Results |
Histological findings of the simulated targets showed artificial ulcerative or polypoid lesions involving the muscularis mucosa or superficial submucosa. The resected specimen was limited to the submucosal layer, and no perforation was noted.
Limitations |
Pilot study in an ex vivo porcine stomach model.
Conclusion |
The most important advantage of the model is to simulate realistic target lesions like those encountered in clinical practice in endoscopic submucosal dissection training. It allows trainees to practice how to make proper markings, delineate adequate safety margins, and properly manage different subtypes of early gastric cancer.
Le texte complet de cet article est disponible en PDF.Abbreviations : EGC, ESD, EVL
Plan
| DISCLOSURE: All authors disclosed no financial relationships relevant to this publication. |
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| If you would like to chat with an author of this article, you may contact Dr Chen at mingjen.ch@msa.hinet.net. |
Vol 74 - N° 2
P. 398-402 - août 2011 Retour au numéro
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