【摘要】 目的观察CA 153和CEA联合检测在乳腺癌术后监测中的价值。方法120例乳腺癌术后患者,空腹取静脉血,分别采用免疫放射分析法(IRMA)和放射免疫分析法(RIA)测定CA 153和CEA。结果①乳腺癌术后无复发转移100例,其中CA 153增高4例、CEA增高3例,阳性率分别为4.0%、3.0%。复发转移20例,其中CA 153增高15例、CEA增高11例,敏感度分别为75.0%、55.0%。CA 153和CEA两者均异常,在无复发转移组为0,复发转移组6例,其敏感度为30.0%,联检两者之一阳性14例,其敏感度为70.0%,联检与单独检测CA 153比较无显著性差异(P>0.05)。②复发或转移乳腺癌患者CA 153和CEA水平显著高于无复发或无转移乳腺癌患者(P<0.01)。结论CA 153和CEA的检测可作为乳腺癌术后随访的重要指标,对预测复发转移具有重要意义。
【关键词】 细胞膜糖蛋白CA 153 癌胚抗原 乳腺癌
The Monitoring Significance of Serum Concentrations CA 153 and CEA in the Postoperative Patients with Breast Cancer
【Abstract】ObjectiveTo investigate the significance of combined detection of CA 153 and CEA in the postoperative patients with breast cancer. MethodsThe concentrations of CA 153 and CEA were respectively detected by IRMA and RIA in blood. Results① The levels of CA 153 in 4 cases and CEA in 3 cases were increased in the 100 postoperative breast cancer patients without recurrence and metastasis,and the positive rate is 4.0% and 3.0% respectively. In the 20 cases with recurrence and metastasis, 15 patients were measured with higher CA 153 and 11 patients with higher CEA,which the sensitivity is 75.0% and 55.0% respectively.14 positive patients were detected by either of the methods,which the sensitivity is 70.0%. Combined detection had no significant difference compared with CA 153 alone. No case in patients without recurrence and metastasis and 6 cases in patients with metastasis and recurrence were detected for both CA 153 and CEA concurrent abnormality, its sensitivity is 30.0%. ②The level of CA 153 or CEA is significantly higher in the breast cancer patients with metastasis and recurrence than that in those metastasis and recurrence. ConclusionThe detection of CA 153 and/or CEA can be an important index for the followup to the postoperative breast cancer, and is important for predicting the recurrence and metastasis of breast cancer.
【Key words】CA 153; Carcinoembryonic antigen; Breast cancer
乳腺癌是女性最常见的恶性肿瘤,呈逐年增长趋势。其最有效的治疗方法是外科手术,但乳腺癌易发生复发及远处转移,故术后监测具有十分重要的意义。本院2000年1月~2005年12月对120例乳腺癌术后患者进行CA 153与癌胚抗原(CEA)联合检测,现将检测结果及其临床意义分述如下。
1对象与方法
1.1临床病例乳腺癌术后患者120例,均为女性,年龄26~68岁,平均45.5岁。病理诊断:浸润性导管癌107例,浸润性小叶癌、单纯癌各4例,导管内癌3例,髓样癌2例。检查证实无明显复发转移100例,发现已有复发转移20例,其中肺转移7例,骨转移、肝转移各3例,脑转移1例,锁骨上或腋下淋巴结转移4例,胸壁局部复发2例。
1.2方法空腹取静脉血检测。CA 153、CEA同时检测。乳腺癌术后一般按1、3、6、12个月的时间间隔检测。手术1年后每6个月检测一次,CA 153、CEA如增高则重复取血检测,按两次的均值计算,并缩短检测间隔。在检测同时作X线及B超等检查以了解有无复发、转移灶。血清CA 153检测采用IRMA,药盒为天津德普公司生产;CEA测定采用RIA,药盒为北京北方生物技术研究所生产。CA 153 <25 μg /ml为正常值,25~30 μg /ml为临界值,>30 μg /ml为阳性值。CEA≤15 ng/ml为正常值,>15 ng/ml为阳性值。
1.3统计学处理计量资料和计数资料分别用t检验和χ2检验进行分析。
2结果
2.1乳腺癌患者术后两组血清CA 153和CEA结果比较见表1。复发转移组CA 153、CEA与无复发转移组相比有显著差异(P<0.01)。
表1乳腺癌患者术后血清CA 153和CEA测定结果(略)
2.2乳腺癌患者术后两组阳性例数比较乳腺癌术后无复发转移组,CA 153增高4例,阳性率4.0%,其中2例伴有糖尿病,2例原因不明;CEA增高3例,阳性率3.0%,其中2例放疗后伴肺纤维化,1例无明显疾病。复发转移组,CA 153增高15例,其敏感度为75.0%;CEA增高11例,其敏感度为55.0%。与无复发转移组相比,均有显著性差异(P<0.05)。联检两者中仅一项阳性14例,其敏感度为70.0%,经χ2检验,与单独检测CA 153比较,无显著性差异(P>0.05)。CA 153和CEA两者均异常,在无复发转移组为0,复发转移组6例,其敏感度为30.0%。