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Are clinically insignificant prostate cancers really insignificant among Korean men?

Authors
 Chan Dong Yeom  ;  Seung Hwan Lee  ;  Kyung Kgi Park  ;  Sang Un Park  ;  Byung Ha Chung 
Citation
 Yonsei Medical Journal, Vol.53(2) : 358-362, 2012 
Journal Title
 Yonsei Medical Journal 
ISSN
 0513-5796 
Issue Date
2012
Abstract
PURPOSE: We aimed to determine whether 12 core-extended biopsies of the prostate could predict insignificant prostate cancer (IPCa) in Koreans reliably enough to recommend active surveillance. MATERIALS AND METHODS: Two hundred and ninety-seven patients who underwent radical prostatectomy after 12 core-extended prostate biopsies were retrospectively reviewed. 38 cases (12.8%) were shown to be IPCa. RESULTS: The average age was 65.2 years, serum PSA was 5.49 ng/dL, and the PSA density was 0.11. The Gleason scores (GS) were 6 (3+3) in 31, 5 (3+2) in 4, and 4 (2+2) in 3. After radical prostatectomy, higher GS was given in 16 (42.1%), whereas lower GS was given in 1 case (2.6%), as compared with the GS obtained from biopsy. 11 (28.9%) had GS of 7 (3+4) and 5 (13.2%) had GS of 7 (4+3). 6 in GS 7 (4+3) and 1 in GS 7 (3+4) showed prostate capsule invasion and 1 in GS 7 (4+3) had seminal vesicle invasion. Prostate capsule invasion was observed in 1 with GS 6 (3+3). The rate of inaccuracy of the contemporary Epstein criteria was 42.1%. Only PSA density was a reliable indicator of clinically IPCa (odds ratio=1.384, 95% CI, 1.103 to 2.091). CONCLUSION: Diagnosis of IPCa from a prostate biopsy underestimated the true nature of prostate cancer in as many as 42.1% of Koreans.
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/92085
DOI
10.3349/ymj.2012.53.2.358
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Urology (비뇨의학교실)
Yonsei Authors
박경기(Park, Kyung Kgi) ; 이승환(Lee, Seung Hwan) ; 정병하(Chung, Byung Ha)
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