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- Title
Effect of biopsy site on detection of gastric cancer high-risk groups by OLGA and OLGIM stages.
- Authors
Kim, Young‐Il; Kook, Myeong‐Cherl; Cho, Soo‐Jeong; Lee, Jong Yeul; Kim, Chan Gyoo; Joo, Jungnam; Choi, Il Ju
- Abstract
Background/Aims The operative link for gastritis assessment ( OLGA) and operative link on gastric intestinal metaplasia assessment ( OLGIM) 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 and OLGIM stages was affected by the use of different biopsy sites. Methods Between 2014 and 2015 , to determine OLGA and OLGIM stages, seven biopsy samples were obtained from the antrum (lesser and greater curvatures [ LG] of the antrum and lesser curvature of the angle) and corpus ( LG and anterior and posterior walls [ AP]) in 247 patients diagnosed with gastritis, gastric adenoma, or adenocarcinoma. The OLGA and OLGIM stages were scored using four different protocols: antrum + angle + corpus LG, antrum + angle + corpus AP, antrum + corpus LG, and antrum + corpus AP. High-risk group included patients who had OLGA or OLGIM stages III and IV. Results For the OLGA stage, the angle + antrum + corpus LG protocol placed more patients in the high-risk group (64.4%) than the angle + antrum + corpus AP (55.5%, P < .001), antrum+corpus LG (59.5%, P = .031), and antrum + corpus AP (47.8%, P < .001) protocols. Likewise, for the OLGIM stage, the angle + antrum + corpus LG protocol placed more patients in the high-risk group (48.6%) than the angle + antrum + corpus AP (46.2%, P = .134), antrum + corpus LG (36.8%, P < .001), and antrum + corpus AP (37.2%, P < .001) protocols. Conclusions To prevent underestimation of OLGA and OLGIM 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.
- Subjects
BIOPSY; CANCER diagnosis; STOMACH cancer; GASTRITIS; TUMOR classification; GASTRIC diseases; DIAGNOSIS
- Publication
Helicobacter, 2017, Vol 22, Issue 6, pn/a
- ISSN
1083-4389
- Publication type
Article
- DOI
10.1111/hel.12442