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Asian Journal of Andrology 2015年第5期17卷 811-814,I0009页

作者： Insang Hwang donghoon lim Young Beom Jeong Seung Chol Park Jun Hwa Noh Dong Deuk Kwon Taek Won Kang Department of Urology Chonnam National University Medical School Gwangju Korea Department of Urology Chosun University Medical School Gwangju Korea Department of Urology Chonbuk National University Medical School Jeonju Korea Department of Urology Wonkwang University School of Medicine Iksan Korea Department of Urology Kwangju Christian Hospital Gwangju Korea

Only 54% of prostate cancer cases in Korea are localized compared with 82% of cases in the US. Furthermore, half of Korean patients are upgraded after radical prostatectomy （41.6%-50.6%）. We investigated the risk factors for upgrading and/or upstaging of low-risk prostate cancer after radical prostatectomy. We retrospectively reviewed the medical records of 1159 patients who underwent radical prostatectomy at five hospitals in Honam Province. Preoperative data on standard clinicopathological parameters were collected. The radical prostatectomy specimens were graded and staged and we defined a ＂worsening prognosis＂ as a Gleason score ≥ 7 or upstaging to ≥ pT3. Multivariate logistic regression models were used to assess factors associated with postoperative pathological upstaging. Among the 1159 patients, 324 were classified into the clinically low-risk group, and 154 （47.5%） patients were either upgraded or upstaged. The multivariable analysis revealed that the preoperative serum prostate-specific antigen level （odds ratio [OR], 1.131; 95% confidence interval [CI], 1.007-1.271; P = 0.037）, percent positive biopsy core （OR： 1.018; 95% CI： 1.002-1.035; P = 0.032）, and small prostate volume （≤30 ml）（OR： 2.280; 95% CI： 1.351-3.848; P = 0.002） were predictive of a worsening prognosis. Overall, 47.5% of patients with low-risk disease were upstaged postoperatively. The current risk stratification criteria may be too relaxed for our study cohort.

关键词： prostate cancer prostatectomy risk factors

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