Neoadjuvant GnRH-Agonist Treatment (Triptorelin and Cyproterone Acetate for Flare Protection) and Total Prostatectomy

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Abstract
The effects of 3 months treatment with the GnRH agonist triptorelin as a neoadjuvant to total prostatectomy in 40 men with localized prostatic cancer have been evaluated. The study included 1 patient with a stage T1b tumour, 25 patients with stage T2 tumours and 14 with stage T3 tumours. The patients were examined by digital rectal examination, transrectal ultrasound before and after treatment. Serum testosterone and prostate-specific antigen (PSA) levels were followed. The totally removed prostate gland was step-sectioned at 5-mm intervals and the whole-mount sections were assessed for tumour pathology stage (pT stage). Triptorelin treatment resulted in a significant decrease in total gland and tumour volume and in a reduction in the serum levels of PSA and testosterone. In comparison with the findings from a previous study, in which neoadjuvant treatment was not used, it appears that the proportion of tumours invading the margins of the surgical specimen decreased.

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