Clinical Value of Fecal Occult Blood Combined with Tumor Markers CEA,TPA,CYFRA211,CA125,CA199 in Diagnosis of Colorectal Cancer
Objective To investigate the clinical value of fecal occult blood(OB)combined with tumor markers carcinoembryonic antigen(CEA),tissue polypeptide antigen(TPA),soluble fragment of cytok-eratin 19(CYFRA211),carbohydrate antigen 125(CA125)and carbohydrate antigen 199(CA199)in the diagnosis of colorectal cancer.Methods Total 87 patients with colorectal cancer admitted to our hospital from January 2021 to December 2023 were selected as study group,and 87 healthy volunteers who under-went physical examination in our hospital during the same period were selected as control group.The re-sults of fecal OB test and serum levels of CEA,TPA,CYFRA211,CA125,CA199 were compared between the two groups to analyze the diagnostic effect of single and combined indexes on colorectal cancer.Re-sults The positive rate of fecal OB in the study group(74.71%)was significantly higher than that in the control group(5.75%)(P<0.05).Serum levels of CEA,TPA,CYFRA211,CA125 and CA199 in the study group were significantly higher than those in the control group(P<0.05).ROC curve analysis showed that the AUC of fecal OB,CEA,TPA,CYFRA211,CA125,CA199 and combined diagnosis of colorectal cancer were 0.845,0.745,0.755,0.876,0.779,0.758 and 0.972,respectively.Sensitivity was 74.7%,50.6%,50.6%,77.0%,56.3%,100%,95.4%,and specificity was 94.3%,93.1%,100%,100%,100%,50.6%,96.6%,respectively.Conclusion The positive rate of fecal OB in patients with colorectal cancer is high,and the serum CEA,TPA,CYFRA211,CA125,CA199 are highly expressed.The combined detection of all indicators can improve the diagnostic effect of colorectal cancer.
Colorectal cancerFecal occult bloodCarcinoembryonic antigenTissue polypeptide anti-genSoluble fragment of cytokeratin 19Carbohydrate antigen 125Carbohydrate antigen 199Diagnosis