本试验目的为证实测定胃液乳酸脱氢酶和β-葡萄糖醛酸酶是否有助于内镜对早期胃癌和胃粘膜癌前病变的诊断。门诊预约445例病人作诊断性内境检查,男215例,年龄45岁以上,内镜检查前,抽去剩余胃液。将100ml Serensens缓冲液,内加木糖(4g/L),加温到37℃,经内镜活检孔向胃窦粘膜喷雾。该液体顺胃粘膜表面流向胃 The purpose of this study was to demonstrate whether the determination of gastric juice lactate dehydrogenase and β-glucuronidase contributes to the diagnosis of early gastric cancer and gastric precancerous lesions by endoscopy. Outpatient appointments of 445 patients for diagnostic internal examination, 215 males, aged 45 years or older, before removal of residual gastric juice by endoscopy. 100 ml of Serensens buffer was added with xylose (4 g/L), warmed to 37°C, and sprayed through the endoscopic biopsy hole to the antrum mucosa. The liquid flows along the surface of the gastric mucosa to the stomach