ABSTRACT
Objective:This study evaluates the relationship between carcino-embryonic antigen (CEA) and carbohydrate antigen 153 (CA153) continuous and remarkable reduction after chemotherapy and no-imaging progression in patients with advanced breast can-cer. Methods: Medical records of 93 patients who received chemotherapy in the Oncology Department of the General Hospital of Shenyang Military Command were included in the retrospective analysis. A total of 188 CEA and CA153 serum data were collected from response evaluations that included 105 CEA cases and 139 CA153 cases. Predictive validity of serum CEA and CA153 was as-sessed for diagnosing no-imaging progression. Results:CEA was continuously reduced by 10%, with sensitivity of 54.1%and specificity of 95%. CA153 was continuously reduced by 40%, with sensitivity of 19.1%and specificity of 96.6%. Conclusion:Serum CEA and CA153 could be considered as response evaluation tools when they are continuously reduced by at least 10%and 40%, respectively.