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在胃镜下及时发现早期胃癌有极其重要的意义,通过外科根治术,胃癌局限于黏膜层者5年生存率达95％,侵及黏膜下层者5年生存率亦可达80％。国内外新兴的胃镜下早期胃癌切除术痛苦小,效果亦好,为胃癌治疗提供了广阔前景,能胃镜治疗的早期胃癌直径一般小于2.0cm。日本胃镜下早期胃癌检出率达50％以上,我国只有15～20％。必须通过各种方法改进胃镜的诊断技术,通过向胄黏膜喷洒药物观察黏膜颜色改变等染色胃镜方法可提高诊断准确性。口服或将色素喷洒在胃黏膜上,或经血管注射色素后,作胃镜检查,叫色素胃镜,目前已取得较多进展,可明显提高早期胃癌检出率。
The timely discovery of early gastric cancer under gastroscopy is of great importance. Through surgical radical surgery, the 5-year survival rate of gastric cancer confined to the mucosal layer is 95%, and the 5-year survival rate of invading submucosa can reach 80%. Emerging endoscopic gastrectomy for early gastric cancer at home and abroad is less painful and effective, providing a broad prospect for the treatment of gastric cancer. The diameter of early gastric cancer that can be treated with gastroscope is generally less than 2.0cm. The detection rate of early gastric cancer in Japan under gastroscope is more than 50%, and China only has 15 to 20%. The diagnostic techniques of gastroscopy must be improved by various methods. Diagnostic accuracy can be improved by spraying the diaphragm with a drug to observe the color change of the mucosa and other gastroscopy methods. Orally or after spraying the pigment on the gastric mucosa, or by intravascular injection of pigment, for gastroscopy, called pigmented gastroscope, has made more progress, can significantly improve the detection rate of early gastric cancer.