title: [The content of the carcinoembryonic antigen in the blood serum of patients with bladder tumors at various stages of combined treatment in relation to the disease stage].
abstract: Serum level of a tumor marker, carcinoembryonic antigen (CEA), was examined in patients at different stages of vesical cancer before and during combined treatment, including preoperative large-fraction radiotherapy and surgery. Sixty patients with histologically documented vesical cancer, stages T1N0M0, T2N0M0, T3N0-1M0 and T4N0M0 were investigated. All patients underwent large-fraction radiotherapy prior to surgery. Transvesical resection of the bladder wall with the tumor or cystectomy was performed within 24-72 hrs after radiation exposure. Serum CEA was measured repeatedly (on admission, after preoperative radiotherapy, postoperatively, at discharge) by enzyme immunoassays. It is demonstrated that CEA variation in the course of combined treatment depends on the stage of cancer. CEA level decreased after preoperative large-fraction radiotherapy in patients with T1, T3 and T4 stages of cancer, and increased in patients at the T2 stage. Following combined treatment, serum CEA was reduced two-fourfold as compared to pretreatment values in patients with first, third and fourth stages of vesical cancer, an evidence of the adequacy and radical quality of treatment and a favorable predictive sign.
authors.forename: N V
authors.initials: NV
authors.lastname: Makhlin
authors.forename: A V
authors.initials: AV
authors.lastname: Strotskiĭ
authors.forename: E S
authors.initials: ES
authors.lastname: Ryneĭskaia
mesh_terms: D014408:Biomarkers, Tumor / Q000097:blood*; D002272:Carcinoembryonic Antigen / Q000032:analysis*; D003131:Combined Modality Therapy; D006801:Humans; D009367:Neoplasm Staging; D011182:Postoperative Care; D011300:Preoperative Care; D013997:Time Factors; D001749:Urinary Bladder Neoplasms / Q000276:immunology* / Q000473:pathology / Q000628:therapy
chemical_list: D014408:Biomarkers, Tumor; D002272:Carcinoembryonic Antigen
vernacular_title: Soderzhanie rakovo-émbrional'nogo antigena v syvorotke krovi bol'nykh s opukholiami mochevogo puzyria na razlichnykh étapakh kombinirovannogo lechenia v zavisimosti ot stadii zabolevaniia.