Application of different endoscopic excisions in colorectal tumor treatment

doi:10.3877/cma.j.issn.2095-3224.2014.01.04

Abstract

Abstract:

Endoscopic submucosal dissection(ESD)and endoscopic mucosal resection(EMR)are useful therapeutic techniques for colorectal tumors.Nowadays new techniques based on them had been developed, such as endoscopic submucosal dissection with snare(ESD-S)and endoscopic mucosal resection with precutting(EMR-P). Each of them has its characteristic in excision of colorectal tumor such as high complete resection rate, low recurrence rate or low complications rate.We referred to the clinic trails which had been published recent years to search for the most appropriate endoscopic treatment for different kinds of tumor.And we found that for the tumor which diameter is less than 20mm, depending on the condition of tumor, surgeon can choose ESD, ESD-S, EMR-P or EMR.On the other hand, for the large tumor, which is more than 20mm in diameter, ESD and ESD-S would be the first choice.However, if the tumor has high risk in complications occurring by ESD or ESD-S, using EMR-P will be suitable.Because the high possibility of canceration in tumor which is larger than 20mm in diameter, EMR is not an appropriate endoscopic treatment in the excision of colorectal tumor, due to the low complete resection rate and high recurrence rate.

Key words: Colorectal cancer, Endoscopic excision, Endoscopic submucosal dissection, Endoscopic mucosal resection

Yun-shi ZHONG. Application of different endoscopic excisions in colorectal tumor treatment[J]. Chinese Journal of Colorectal Diseases(Electronic Edition), 2014, 03(01): 12-17.

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