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KMID : 1188320110050030293
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Gut and Liver
2011 Volume.5 No. 3 p.293 ~ p.297
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Short-Term Healing Process of Artificial Ulcers after Gastric Endoscopic Submucosal Dissection
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Osamu Goto
Mitsuhiro Fujishiro
Shinya Kodashima
Chihiro Minatsuki
Keiko Niimi
Satoshi Ono
Nobutake Yamamichi
Kazuhiko Koike
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Abstract
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Background/Aims:The relationship between the appearance of an ulcer and postoperative bleeding after gastric endoscopic submucosal dissection (ESD) is not well understood. To explore this potential relationship, we retrospectively analyzed the short-term healing process of ESD.
Methods:A total of 520 consecutive lesions in 434 patients seen between January 2004 and December 2009 were retrospectively investigated. At the second-look endoscopy, which occurred between 1 and 8 days after ESD, artificial ulcers were categorized into 6 patterns according to Forrest's classification: spurting bleeding, oozing bleeding, non-bleeding visible vessel, adherent clot, black base/spot, and clean base. From these data, a short-term healing model of the artificial ulcer was generated.
Results:Ulcer base changed gradually from a bloody to a clean one. The bleeding or non-bleeding visible vessel categories, which occurred in approximately one quarter of the ulcers within 3 days of ESD, were rarely observed 4 days after ESD.
Conclusions:Ulcers that occur after gastric ESD heal in line with a specific time course, and it appears that most healing occurs without massive bleeding.
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KEYWORD
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Endoscopic submucosal dissection, Artificial ulcer, Healing process, Gastric neoplasm, Postoperative bleeding
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