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  • Title: Detection of gastric cancer by repeat endoscopy within a short time after negative examination.
    Author: Hosokawa O, Watanabe K, Hatorri M, Douden K, Hayashi H, Kaizaki Y.
    Journal: Endoscopy; 2001 Apr; 33(4):301-5. PubMed ID: 11315889.
    Abstract:
    BACKGROUND AND STUDY AIMS: Although a large number of patients are examined using endoscopy in order to identify gastric cancer, it is unclear how individuals should be managed after they are not diagnosed as having gastric cancer at the time of their initial examinations. This study was conducted to identify the group at high risk for gastric cancer who should be examined by repeat endoscopy within a short time after obtaining negative results. PATIENTS AND METHODS: The study involved 3672 patients who were not diagnosed as having gastric cancer by endoscopy in 1993, but underwent re-examination by gastroscopy between January 1994 and December 1996. RESULTS: Among these participants, 32 patients (0.9%) were diagnosed as having gastric cancer. The incidence of gastric cancer was 2.0% in participants aged 60 to 69 and 2.7% in those with marked atrophy of the gastric mucosa. Multivariate analysis showed that the odds ratios (OR) for patients aged 60 to 69 and those with marked atrophy of the gastric mucosa were 3.092 and 3.255 (P < 0.01), respectively. Gastric cancer was detected in 17.2 % of patients who were previously diagnosed as having gastric adenoma and in 2.2% of those who were previously diagnosed as having gastric ulcer. The ORs for participants with these gastric lesions detected by the initial examination were 49.417 and 5.259 (P < 0.01), respectively. CONCLUSIONS: Groups at high risk for gastric cancer were identified by the initial endoscopy, when two findings (gastric lesions, atrophy) and age were combined. We emphasize the importance of repeat endoscopic examination for patients who are aged 60 to 69 or have marked atrophy of gastric mucosa, even if no lesions are detected on initial endoscopy. If gastric adenoma or ulcer are detected, endoscopic examination should be likewise repeated or these lesions should be treated by endoscopy or by other means.
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