The prognostic value of prostate-specific antigen and prostatic acid phosphatase in serum of patients with prostate cancer after orchidectomy.
Correlations between the serum levels of PAP and PSA before and 1, 3 and 6 months after orchidectomy in 27 prostatic cancer patients (advanced clinical stages C and D according to Whitemore scale) were studied. The PSA values correlated more distinctly than PAP with the general clinical condition. PSA is a reliable tumour marker when used at regular intervals, especially for monitoring therapeutic results. A high preoperative PSA level correlates with a high postoperative level and progression of the disease.