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胃癌居我国各类恶性肿瘤死因的第一位。我国胃癌病因综合考察报告认为:由于胃内环境的改变,致癌N—亚硝基化合物在胃内合成并长期作用可能是胃癌的重要病因之一。而且,慢性胃炎,特别是萎缩性胃炎与胃癌的发生有十分密切的关系。胃排空时间的延迟,是胃内环境改变的一个重要的时间因素。胃癌和萎缩性胃炎患者的胃排空时间均明显延迟。胃排空延迟与胃癌发生两者之间的关系是值得探讨的研究课题。
Stomach cancer ranks first in the cause of death of all types of malignant tumors in China. The comprehensive investigation report of the cause of gastric cancer in China believes that due to changes in the stomach environment, carcinogenesis of N-nitroso compounds in the stomach and long-term effects may be one of the important causes of gastric cancer. Moreover, chronic gastritis, especially atrophic gastritis, has a very close relationship with the occurrence of gastric cancer. Delay in gastric emptying time is an important time factor for changes in the stomach environment. Gastric emptying time was significantly delayed in patients with gastric cancer and atrophic gastritis. The relationship between delayed gastric emptying and the occurrence of gastric cancer is a research subject worthy of discussion.