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目的 考察微量耳血极谱测定普查胃癌的实际效果。 方法 在内镜检查前填表,同时采取耳血20μl,用改进的Brdicka极谱反应方法,测定并计算出极谱值,以>0.1为阳性,做内镜检查,以内镜病理结果判定其正确符合率。 结果 现场筛选1006例(男618,女388),内镜和病理证实胃癌25例,极谱阳性20例,阳性符合率80％,极谱阴性836例,阴性符合率99.4％,普查同时用电子计算机筛选法阳性符合率77％,若二法互补阳性率可提高到90％以上。 结论 微量耳血极谱对普查筛选胃癌高危人有一定实际价值。
Objective To investigate the practical effects of microscopic ear blood polarography in the screening of gastric cancer. Methods Fill in the table before endoscopy, and take ear blood at the same time 20μl, use the improved Brdicka polarographic method to measure and calculate the polarogram value, with a positive value of >0.1, do endoscopy, and judge the correct endoscopic pathological results Conformity rate. Results 1006 cases (male 618, female 388) were screened on site. Endoscopic and pathological findings confirmed 25 cases of gastric cancer and 20 cases of positive polarogram. The positive coincidence rate was 80%, and the negative rate was 99.4%. The negative coincidence rate was 99.4%. The positive rate of computer screening was 77%, and the rate of complementation of the two methods could be increased to more than 90%. Conclusion The trace ear blood polarography has a certain practical value for screening high-risk patients with gastric cancer.