KMID : 0191120200350410342
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Journal of Korean Medical Science 2020 Volume.35 No. 41 p.342 ~ p.342
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Strategy for Prostate Cancer Patients with Low Prostate Specific Antigen Level (2.5 to 4.0 ng/mL)
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Chung Jae-Hoon
Yu Ji-Woong Song Wan Kang Min-Yong Sung Hyun-Hwan Jeon Hwang-Gyun Jeong Byong-Chang Seo Seong-Il Lee Hyun-Moo Jeon Seong-Soo
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Abstract
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Background: To evaluate the strategy for detection of prostate cancer (PCa) with low prostate specific antigen (PSA) level (2.5?4.0 ng/mL), prostate biopsy patients with low PSA were assessed. We evaluated the risk of low PSA PCa and the strategy for screening low-PSA patients.
Methods: We retrospectively analyzed the patients who underwent prostate biopsy with low PSA level. Baseline characteristics, PSA level before prostate biopsy, prostate volume, prostate specific antigen density (PSAD), and pathological data were assessed.
Results: Among the 1986 patients, 24.97% were diagnosed with PCa. The PSAD was 0.12 ¡¾ 0.04 ng/mL2 in the PCa-diagnosed group and 0.10 ¡¾ 0.04 ng/mL2 in non-cancer-diagnosed group (P < 0.001). Of the 496 patients diagnosed with PCa, 302 (60.89%) were in the intermediate- or high-risk group. PSAD was 0.13 ¡¾ 0.04 ng/mL2 in the intermediate- or high-risk group and 0.11 ¡¾ 0.03 ng/mL2 in the very low- and low-risk group (P < 0.001). Of 330 patients who underwent radical prostatectomy, 85.15% were diagnosed as having significant cancer. There was significant correlation between PSAD and PCa (r = 0.294, P < 0.001). PSAD with a specificity of 80.00% of a clinically significant cancer diagnosis was assessed at 0.1226 ng/mL2.
Conclusion: The PCa detection rate in the low-PSA group was not lower than that of previous studies of patients with PSA from 4.0 to 10.0 ng/mL. Further, it may be helpful to define a strategy for PCa detection using PSAD in the low-PSA group.
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KEYWORD
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Prostatic Neoplasms, Prostate-Specific Antigen, Diagnosis, Biopsy
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