Severity of gastric intestinal metaplasia predicts the risk of gastric cancer: a prospective multicentre cohort study (GCEP)

Jonathan W J Lee, Feng Zhu, Supriya Srivastava, Stephen Kk Tsao, Christopher Khor, Khek Yu Ho, Kwong Ming Fock, Wee Chian Lim, Tiing Leong Ang, Wan Cheng Chow, Jimmy Bok Yan So, Calvin J Koh, Shijia Joy Chua, Andrew S Y Wong, Jaideepraj Rao, Lee Guan Lim, Khoon Lin Ling, Chung-King Chia, Choon Jin Ooi, Andrea RajnakovaWai Ming Yap, Manuel Salto-Tellez, Bow Ho, Richie Soong, Kee Seng Chia, Yik Ying Teo, Ming Teh, Khay-Guan Yeoh

Research output: Contribution to journalArticlepeer-review

2 Downloads (Pure)

Abstract

Objective:To investigate the incidence of gastric cancer (GC) attributed to gastric intestinal metaplasia (IM), and validate the Operative Link on Gastric Intestinal Metaplasia (OLGIM) for targeted endoscopic surveillance in regions with low-intermediate incidence of GC.
Methods:A prospective, longitudinal and multicentre study was carried out in Singapore. The study participants comprised 2980 patients undergoing screening gastroscopy with standardised gastric mucosal sampling, from January 2004 and December 2010, with scheduled surveillance endoscopies at year 3 and 5. Participants were also matched against the National Registry of Diseases Office for missed diagnoses of early gastric neoplasia (EGN).
Results:There were 21 participants diagnosed with EGN. IM was a significant risk factor for EGN (adjusted-HR 5.36; 95% CI 1.51 to 19.0; p<0.01). The age-adjusted EGN incidence rates for patients with and without IM were 133.9 and 12.5 per 100 000 person-years. Participants with OLGIM stages III–IV were at greatest risk (adjusted-HR 20.7; 95% CI 5.04 to 85.6; p<0.01). More than half of the EGNs (n=4/7) attributed to baseline OLGIM III–IV developed within 2 years (range: 12.7–44.8 months). Serum trefoil factor 3 distinguishes (Area Under the Receiver Operating Characteristics 0.749) patients with OLGIM III–IV if they are negative for H. pylori. Participants with OLGIM II were also at significant risk of EGN (adjusted-HR 7.34; 95% CI 1.60 to 33.7; p=0.02). A significant smoking history further increases the risk of EGN among patients with OLGIM stages II–IV.
Conclusions: We suggest a risk-stratified approach and recommend that high-risk patients (OLGIM III–IV) have endoscopic surveillance in 2 years, intermediate-risk patients (OLGIM II) in 5 years.
Original languageEnglish
JournalGut
Early online date11 May 2021
DOIs
Publication statusEarly online date - 11 May 2021

Keywords

  • gastric cancer
  • pre-malignancy - GI tract
  • surveillance

Fingerprint

Dive into the research topics of 'Severity of gastric intestinal metaplasia predicts the risk of gastric cancer: a prospective multicentre cohort study (GCEP)'. Together they form a unique fingerprint.

Cite this