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Memorias del Instituto de Investigaciones en Ciencias de la Salud

On-line version ISSN 1812-9528


ACOSTA, NM et al. Serum levels of the prostate-specific antigen (PSA) in the prostate cancer prevention campaign. Mem. Inst. Investig. Cienc. Salud [online]. 2010, vol.8, n.2, pp.14-19. ISSN 1812-9528.

ABSTRACT The determination of prostate-specific antigen (PSA) is part of the diagnosis of prostate cancer.It is considered an useful tumor marker for early diagnosis of porostate cancer because in pathological conditions its levels increase.Serum levels of PSA were determined within the campaign "Prostate Week" organized by the Department of Urology of the Hospital de Clínicas in October 2007.;Of the 89 patients, 86.5% had PSA levels between 0 and 4 ng/ml, 10.1% between 4 and 10 ng/ml and 3.4% between 10 and 40 ng/ml respectively. An age distribution was made and the mean of PSA values were determined in each group. Twelve point four percent of group E1 (41 to 50 years) had 0.5 ng/ml of PSA, 52.8% of group E2 (51 to 60 years) 7.4 ng/ml PSA, 28.1% of E3 group (61 to 70 years) 5.2 ng/ ml of PSA and 6.7% of the E4 group (71 to 80 years) had 1.5 ng/ml of PSA.The highest values of PSA were found in E2 and E3 groups, but not in the E4 group. In relation to digital rectal examination (DRE) and PSA values, 31.5% (28) showed normal DRE with a mean value of PSA of 3.4 while 65.1% (58) had pathological DRE with mean values of PSA of 7.17 in 55 patients and only 3 patients had pathological TR with PSA levels below 2.5 ng/ml. The DRE was the variable with the greatest ability to discriminate in relation to the results of PSA in these patients.

Keywords : total prostate-specific antigen; prostate cancer; early detection.

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