Background: Helicobacter pylori (Hp) infection and gastric atrophy are both risk factors for gastric cancer. Recently it has been found that X-ray examination for gastric cancer screening does not have much effect on the detection rate for gastric cancer in Japan. A candidate for a new mass screening for gastric cancer, the ABC method, using the combination assay of Hp and serum pepsinogen, was useful for identifying the development of gastric cancer in high-risk and low-risk populations. People with higher cancer risk are recommended to receive endoscopy. The ABC method was carried out as a gastric cancer mass-screening on the initiative of Nishitokyo Medical Association in Nishitokyo city from 2011. This paper reviewed the present status of gastric cancer screening using the ABC method, including the latest results of our ongoing screening.
Summary: We report results for 36,627 individuals from 2011 to 2013. Among them, 16,965 received blood examination for the ABC method. Of those, 8,083 planned to undergo endoscopic examination according to stratification of the risk for the development of gastric cancer. In fact, a total of 2,911 individuals underwent endoscopic examination. Gastric cancer was detected in 65 patients, including 52 (80%) diagnosed with early gastric cancer. The ABC method was not organized screening but opportunistic screening. X-ray examination was the organized screening that was ongoing during the same period. Detection cost for 1 gastric cancer case using the ABC method was cheaper than the conventional X-ray screening method (¥1,267,452 vs. ¥2,807,763).
Key Messages: Although further large epidemiological studies are required, the ABC method might be positioned as an effective mass screening for gastric cancer.
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