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  • Title: The clinical values of squamous cell carcinoma antigen and carcinoembryonic antigen in patients with cervical cancer treated with concurrent chemoradiotherapy.
    Author: Yoon SM, Shin KH, Kim JY, Seo SS, Park SY, Kang S, Cho KH.
    Journal: Int J Gynecol Cancer; 2007; 17(4):872-8. PubMed ID: 17343571.
    Abstract:
    The objective of this study was to determine the prognostic significance of the pre- and posttreatment serum levels of the squamous cell carcinoma antigen (SCC-Ag) and carcinoembryonic antigen (CEA). From 2001 to 2005, 211 patients were treated with concurrent chemoradiotherapy (CCRT). The SCC-Ag and CEA levels were measured before treatment, 1 month after treatment, and during the follow-up. The association between the pretreatment tumor marker levels and the clinical prognostic factors was evaluated. The frequency of complete remission (CR) and the normalization of the posttreatment tumor marker were also analyzed. The pretreatment serum levels of CEA and SCC-Ag were elevated in 68 (32.2%) and 148 (70.1%) patients, respectively. The number of patients with an elevated pretreatment SCC-Ag level was associated with the FIGO stage, tumor volume, and pelvic lymph node status. The pretreatment CEA was only significantly related to the tumor volume and pelvic lymph node involvement. One month after completing CCRT, the CEA and SCC-Ag levels were normalized in almost all patients with an incidence of 88.2% (60/68) and 93.2% (138/148), respectively. Among the patients who gained CR with a previously elevated pretreatment CEA and SCC-Ag, the values were normalized in 92.1% (58/63) and 96.4% (134/139) at 1 month, respectively. Combination assays of the pre- and posttreatment serum CEA and SCC-Ag levels appear to be useful for both predicting the prognosis and estimating the clinical response in cervical cancer. However, the routine combined measurement with SCC-Ag of CEA in all patients had limited additional effect in predicting the prognostic significance.
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