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  • Title: Preoperative endocrine therapy in patients with locally advanced prostate cancer.
    Author: Maeda O, Meguro N, Saiki S, Kinouchi T, Kuroda M, Usami M, Kotake T.
    Journal: Jpn J Clin Oncol; 1995 Aug; 25(4):135-9. PubMed ID: 7545250.
    Abstract:
    Recently, there has been increased interest in the application of preoperative endocrine therapy prior to radical prostatectomy for locally advanced cancer in order to enhance surgical curability and increase survival. Between 1986 and 1993, 40 patients with prostate cancer were given endocrine therapy before radical prostatectomy. Fifteen patients had stage B2 disease and 25 stage C. The median duration of preoperative endocrine therapy was 3.8 months, and all the patients subsequently underwent radical prostatectomy, pelvic lymphadenectomy and castration. There was an average 25.5% (0-71.8%) decreases in the maximal cross-sectional area of the prostate gland as determined by transrectal ultrasonography. Twenty-four of 25 patients with elevated levels of serum prostate-specific antigen (PSA) showed normal values after preoperative endocrine therapy. Evaluation of treatment-related histological effects, divided into three grades, revealed that 17 patients had pronounced, 11 moderate and 12 poor or no regression. Thirteen of the 40 patients (33%) demonstrated pathological downstaging of disease status from the diagnosis made at the initial clinical examination. After a median follow-up period of 36 months (3-100 months), 36 of the 40 patients are disease-free; two died of cancer 43 and 50 months after surgery, respectively. These results suggest that preoperative endocrine therapy may play an important role in the management of locally advanced prostatic cancer.
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