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KMID : 0614720200630110652
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Journal of Korean Medical Association
2020 Volume.63 No. 11 p.652 ~ p.658
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Relevance of nationwide prostate specific antigen screening test for prostate cancer
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Ko Young-Hwii
Lee Young-Goo
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Abstract
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The serum prostate specific antigen (PSA) screening test plays a pivotal role in the diagnosis of prostate cancer (PCa), especially for early detection, before symptoms of systemic spread. Even though clinical trials for the PSA screening test have demonstrated limited benefits with regard to patient survival, recent trends have shown a continuous decrease in the PCa mortality rate in Western countries. In many Asian countries where PSA screening has not yet been widely adopted, the screening strategy reduces the metastatic spread. While PCa became the 10th most common malignant disease in the Korean male population in 2000, recent national reports indicate that its increase in the last two decades have now made it the third most popular malignant condition. Due to the different epidemiologic background and limited social awareness of PCa compared to Western countries, the PSA screening test was not routinely performed in Korea, in contrast with other prevalent malignant diseases such as stomach, colon, and lung cancers. Therefore, only about a quarter of the patients newly diagnosed with PCa in Korea were found to have undergone repeated PSA screening. However, the screened population showed a higher probability of local rather than systemic treatment, which reflects an earlier disease stage at the time of diagnosis in comparison with their non-screened counterparts. Given the relatively high survival rate of PCa and the increasing lifespan of Korean males, the increase of PCa will accelerate, suggesting the clinical relevance of PSA screening as part of regular checkups for Korean males.
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KEYWORD
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Prostatic neoplasms, Early detection of cancer, Prostate-specific antigen, Epidemiology
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