| Autor: |
Uozumi, Jiro, Tokuda, Yuji, Fujiyama, Chisato, Takagi, Norito, Meiri, Hiroyuki, Kuratomi, Kazunari, Nakamura, Kouji, Ichigi, Yasuhisa, Yoshinaga, Hidetoshi, Kinoshita, Norio, Masaki, Zenjiro |
| Předmět: |
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| Zdroj: |
International Journal of Urology; Jun2002, Vol. 9 Issue 6, p334-339, 0p |
| Abstrakt: |
Abstract Background: Annual changes in prostate specific antigen (PSA) levels detected by the Imari prostate cancer screening program were evaluated to establish a more efficient and cost-saving screening system, especially for men with low PSA levels. Methods: Prostate specific antigen-based annual mass screenings for prostate cancer were conducted for men aged 60–69 in the Imari district, Saga, Japan. Between 1992 and 2000, 1822 men had their PSA levels tested. A total of 4661 PSA tests were conducted. Changes in PSA levels over the following 1 to 5 years were analyzed in men with PSA levels of 3 ng/mL or less, a range in which the detection rate of prostate cancer would seem to be negligibly low. Results: The overall detection rate of prostate cancer between 1992 and 2000 was 0.73%. The detection rate in men with a PSA level between 3.1 and 3.9 ng/mL, and between 4 and 9.9 ng/mL was 1.6% and 8.3%, respectively. Of 4661 determinations of PSA, 2553 (54.8%) were found to be ≤ 1 ng/mL, 1273 (27.3%) were between 1.1 and 2 ng/mL, and 401 (8.6%) were between 2.1 and 3 ng/mL. Four hundred and thirty-four men (9.3%) had PSA levels ≥ 3.1 ng/mL, with possible indications for prostate biopsy. Of the men tested, 1.4% with an initial PSA level of ≤ 2 ng/mL and 22.3% with an initial level between 2.1 and 3 ng/mL had a PSA level of ≥ 3.1 ng/mL after 1 year. Almost the same rate of PSA increase was observed between the two PSA tests conducted at 2 to 5-year intervals. Of the men tested, 2.2% with an initial PSA level of ≤ 2 ng/mL, and 21.9% with an initial level between 2.1 and 3 ng/mL, had a level of ≥ 3.1 ng/mL after 5 years. Conclusion: Levels of PSA in men with an initial level below 2 ng/mL remained stable for up to 5 years. Levels of PSA in 97.8– 98.8% of men remained below 3 ng/mL after 1 to 5 years. In contrast, 18–35.3% of men with an initial PSA level... [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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