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Serum prostate-specific antigen value adjusted for non-cancerous prostate tissue volume in patients undergoing radical prostatectomy： a new predictor of biochemical recurrence in localized or locally advanced prostate cancer

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Asian Journal of Andrology 2011年第2期13卷 248-253页

作者： Ja Hyeon Ku ky.ng chul moon Sung Yong Cho Cheol Kwak Hyeon Hoe Kim Department of Urology Seoul National University College of Medicine Seoul 1 10-744 Korea Department of Pathology Seeul National University College of Medicine Seoul110-744 Korea

The aim of this study was to investigate the significance of serum prostate-specific antigen （PSA） value adjusted for total tumor volume （PSA/tumor volume） and serum PSA value adjusted for non-cancerous prostate tissue volume （NCPV）（PSA/NCPV） as a predictor of pathological findings and clinical outcome after radical prostatectomy. Clinical and pathological data of 407 patients （median age： 66.5 years; range： 41.8--85.7 years） were reviewed retrospectively. The median follow-up period was 18. I months （range： 1.0- 107.8 months）. Biochemical recurrence was defined as detectable PSA levels （greater than 0.2 ng ml-1） and the time of biochemical recurrence was taken to be the first time PSA became detectable. In the multivariate model, PSA/NCPV was an independent predictor of extracapsular extension and positive surgical margin （P〈O.05）, but PSA/tumor volume was not. Kaplan-Meier curves revealed that PSA/NCPV correlated with biochemical recurrence-free survival （P〈O.O01; log-rank test） but PSA/tumor volume did not （P=0.275; log-rank test）. PSA/NCPV was also a significant independent prognostic factor for biochemical recurrence-free survival on multivariate Cox proportional hazard analysis （P=0.004, relative risk=2.42）. Our findings suggest that PSA/NCPV is associated independently with extracapsular extension and surgical margin status and may be an independent prognostic variable of PSA recurrence after radical prostatectomy.

关键词： prostatectomy prostatic neoplasm PSA treatment outcome tumor volume

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Clinical course of sub-centimeter-sized nodules detected during surveillance for hepatocellular carcinoma

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World Journal of Gastroenterology 2012年第21期18卷 2654-2660页

作者： Yang Won Min Geum-Youn Gwak Min Woo Lee moon Seok Choi Joon Hyoek Lee Kwang Cheol Koh Seung Woon Paik Byung chul Yoo Department of Medicine Samsung Medical Center Sungkyunkwan University School of MedicineSeoul 135-710 South Korea Department of Radiology Samsung Medical Center Sungkyunkwan University School of MedicineSeoul 135-710 South Korea

AIM: To evaluate the outcome of sub-centimeter-sized nodules (SCSNs) detected during surveillance for hepatocellular carcinoma (HCC) in patients at risk. METHODS: We retrospectively analyzed a total of 142 patients with liver cirrhosis or chronic hepatitis B or C without a prior history of HCC in whom a SCSN was detected during HCC surveillance. We calculated the rate of HCC development from SCSNs in the study population and analyzed the differences in the baseline clinical characteristics and imaging features between the patients with SCSNs that eventually developed into HCC and patients with SCSNs that did not develop into ***: During 667 person-years of follow-up, HCC developed in 33 patients. The calculated HCC development rate was 4.9% per year. The cumulative one-, two-, three- and five-year HCC development rates were 5.6%, 10.6%, 14.1% and 20.4%, respectively. Upon baseline comparison, the HCC group was older (54.4 ± 8.3 years vs 48.9 ± 9.4 years; P = 0.003) and had lower albumin levels (3.56 ± 0.58 g/dL vs 3.84 ± 0.55 g/dL; P = 0.012) and higher baseline alpha-fetoprotein (AFP) levels (8.5 ng/mL vs 5.4 ng/mL; P = 0.035) compared to the non-HCC group. Nodule pattern and initial radiologic diagnosis also differed between the two groups. Multivariate analysis revealed that age [P = 0.012, odds ratio (OR) =1.075, 95% confidence interval (CI) =1.016-1.137], sex (P = 0.009, OR = 3.969, 95% CI: 1.403-11.226), and baseline AFP level (P = 0.024, OR = 1.039, 95% CI: 1.005-1.073) were independent risk factors for developing HCC. CONCLUSION: The overall risk of HCC development in patients with SCSNs is similar to that in liver cirrhosis patients. Patients with these risk factors need to be closely monitored during follow-up.

关键词： Chronic liver disease Hepatocellular carcinoma Risk factor Sub-centimeter-sized nodule

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