{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T06:20:11Z","timestamp":1780467611101,"version":"3.54.1"},"reference-count":22,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2017,9,22]],"date-time":"2017-09-22T00:00:00Z","timestamp":1506038400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100008746","name":"National Cancer Center","doi-asserted-by":"publisher","award":["1510530"],"award-info":[{"award-number":["1510530"]}],"id":[{"id":"10.13039\/100008746","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Helicobacter"],"published-print":{"date-parts":[[2017,12]]},"abstract":"Abstract<\/jats:title>Background\/Aims<\/jats:title>The operative link for gastritis assessment (OLGA<\/jats:styled-content>) and operative link on gastric intestinal metaplasia assessment (OLGIM<\/jats:styled-content>) staging systems are recommended to assess the severity of gastritis, but the optimal biopsy sites have not been clearly defined. We aimed to investigate whether the scoring of the OLGA<\/jats:styled-content> and OLGIM<\/jats:styled-content> stages was affected by the use of different biopsy sites.<\/jats:p><\/jats:sec>Methods<\/jats:title>Between 2014 and 2015,<\/jats:bold> to determine OLGA<\/jats:styled-content> and OLGIM<\/jats:styled-content> stages, seven biopsy samples were obtained from the antrum (lesser and greater curvatures [LG<\/jats:styled-content>] of the antrum and lesser curvature of the angle) and corpus (LG<\/jats:styled-content> and anterior and posterior walls [AP<\/jats:styled-content>]) in 247 patients diagnosed with gastritis, gastric adenoma, or adenocarcinoma. The OLGA<\/jats:styled-content> and OLGIM<\/jats:styled-content> stages were scored using four different protocols: antrum\u00a0+\u00a0angle\u00a0+\u00a0corpus LG<\/jats:styled-content>, antrum\u00a0+\u00a0angle\u00a0+\u00a0corpus AP<\/jats:styled-content>, antrum\u00a0+\u00a0corpus LG<\/jats:styled-content>, and antrum\u00a0+\u00a0corpus AP<\/jats:styled-content>. High\u2010risk group included patients who had OLGA<\/jats:styled-content> or OLGIM<\/jats:styled-content> stages III<\/jats:styled-content> and IV<\/jats:styled-content>.<\/jats:p><\/jats:sec>Results<\/jats:title>For the OLGA<\/jats:styled-content> stage, the angle\u00a0+\u00a0antrum\u00a0+\u00a0corpus LG<\/jats:styled-content> protocol placed more patients in the high\u2010risk group (64.4%) than the angle\u00a0+\u00a0antrum\u00a0+\u00a0corpus AP<\/jats:styled-content> (55.5%, P\u00a0<\/jats:italic><\u00a0<\/jats:italic>.001), antrum+corpus LG<\/jats:styled-content> (59.5%, P\u00a0<\/jats:italic>=\u00a0<\/jats:italic>.031), and antrum\u00a0+\u00a0corpus AP<\/jats:styled-content> (47.8%, P\u00a0<\/jats:italic><\u00a0<\/jats:italic>.001) protocols. Likewise, for the OLGIM<\/jats:styled-content> stage, the angle\u00a0+\u00a0antrum\u00a0+\u00a0corpus LG<\/jats:styled-content> protocol placed more patients in the high\u2010risk group (48.6%) than the angle\u00a0+\u00a0antrum\u00a0+\u00a0corpus AP<\/jats:styled-content> (46.2%, P\u00a0<\/jats:italic>=\u00a0<\/jats:italic>.134), antrum\u00a0+\u00a0corpus LG<\/jats:styled-content> (36.8%, P\u00a0<\/jats:italic><\u00a0<\/jats:italic>.001), and antrum\u00a0+\u00a0corpus AP<\/jats:styled-content> (37.2%, P\u00a0<\/jats:italic><\u00a0<\/jats:italic>.001) protocols.<\/jats:p><\/jats:sec>Conclusions<\/jats:title>To prevent underestimation of OLGA<\/jats:styled-content> and OLGIM<\/jats:styled-content> stages, it is necessary to include an angle biopsy, and to obtain corpus biopsy specimens from lesser and greater curvature sites rather than from anterior and posterior wall sites.<\/jats:p><\/jats:sec>","DOI":"10.1111\/hel.12442","type":"journal-article","created":{"date-parts":[[2017,9,22]],"date-time":"2017-09-22T08:36:56Z","timestamp":1506069416000},"source":"Crossref","is-referenced-by-count":24,"title":["Effect of biopsy site on detection of gastric cancer high\u2010risk groups by OLGA<\/scp> and OLGIM<\/scp> stages"],"prefix":"10.1111","volume":"22","author":[{"given":"Young\u2010Il","family":"Kim","sequence":"first","affiliation":[{"name":"Center for Gastric Cancer National Cancer Center Goyang Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Myeong\u2010Cherl","family":"Kook","sequence":"additional","affiliation":[{"name":"Center for Gastric Cancer National Cancer Center Goyang Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Soo\u2010Jeong","family":"Cho","sequence":"additional","affiliation":[{"name":"Center for Gastric Cancer National Cancer Center Goyang 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