Abstract
Gastrointestinal neoplasms can be cured by local resection as long as the lesions are in the early stage and have not metastasized. Endoscopic resection is a minimally invasive treatment for early-stage gastrointestinal neoplasms, and endoscopic submucosal dissection (ESD) is one type of endoscopic resection that has been developed in the past 10 years. For ESD to be a reliable, curative treatment for gastrointestinal neoplasms, it is necessary for the endoscopist to detect the lesion early, make a precise pretreatment diagnosis, ensure that the patient has the correct indication for endoscopic resection, and have the skill to perform ESD. For early lesion detection, endoscopists should pay attention to subtle changes in the surface structure, the color of the mucosa and the visibility of underlying submucosal vessels. Chromoendoscopy and magnifying endoscopy are useful for determining the margin of the lesions for pretreatment diagnosis, and endoscopic ultrasonography and magnifying endoscopy are useful for determining the depth of invasion. For ESD to be successful, local injection of sodium hyaluronate helps maintain mucosal elevation during dissection. Selecting the appropriate knife, using transparent hoods wisely, employing a good strategy that uses gravity, and having good control of bleeding are all needed to make ESD reliable.
Key Points
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Endoscopic submucosal dissection (ESD) is a recently developed type of endoscopic resection that enables reliable and complete resection of early gastrointestinal neoplasms
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For ESD to be a reliable, curative treatment for gastrointestinal neoplasms, it is necessary for the endoscopist to detect the lesion early, make a precise pretreatment diagnosis, ensure that the patient has the correct indication for endoscopic resection, and have the skill to perform ESD
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For early detection of gastrointestinal lesions, endoscopists should pay attention to subtle changes in the surface structure and the color of the mucosa and the visibility of underlying submucosal vessels
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Chromoendoscopy and magnifying endoscopy can help to determine the margin of the lesions as part of the pretreatment diagnosis
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Endoscopic ultrasonography and magnifying endoscopy can help to determine the depth of invasion of the lesion
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The author is a speaker and consultant for Fujinon Corporation, and holds a patent entitled “Method of endoscopic mucosal resection using mucopolysacharide and local injection preparation” (US Patent number 6,319,260) in conjunction with Fujinon and Seikagaku.
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Yamamoto, H. Technology Insight: endoscopic submucosal dissection of gastrointestinal neoplasms. Nat Rev Gastroenterol Hepatol 4, 511–520 (2007). https://doi.org/10.1038/ncpgasthep0906
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DOI: https://doi.org/10.1038/ncpgasthep0906
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