Nomograms for predicting the risk of prostate cancer developed using other populations may introduce sizable bias when applied to a Chinese cohort. In the present study, we sought to develop a nomogram for predicting ...Nomograms for predicting the risk of prostate cancer developed using other populations may introduce sizable bias when applied to a Chinese cohort. In the present study, we sought to develop a nomogram for predicting the probability of a positive initial prostate biopsy in a Chinese population. A total of 535 Chinese men who underwent a prostatic biopsy for the detection of prostate cancer in the past decade with complete biopsy data were included. Stepwise logistic regression was used to determine the independent predictors of a positive initial biopsy. Age, prostate-specific antigen （PSA）, prostate volume （PV）, digital rectal examination （DRE） status, % free PSA and transrectal ultrasound （TRUS） findings were included in the analysis. A nomogram model was developed that was based on these independent predictors to calculate the probability of a positive initial prostate biopsy. A receiver-operating characteristic curve was used to assess the accuracy of using the nomogram and PSA levels alone for predicting positive prostate biopsy. The rate for positive initial prostate biopsy was 41.7% （223/535）. The independent variables used to predict a positive initial prostate biopsy were age, PSA, PV and DRE status. The areas under the receiver-operating characteristic curve for a positive initial prostate biopsy for PSA alone and the nomogram were 79.7% and 84.8%, respectively. Our results indicate that the risk of a positive initial prostate biopsy can be predicted to a satisfactory level in a Chinese population using our nomogram. The nomogram can be used to identify and counsel patients who should consider a prostate biopsy, ultimately enhancing accuracy in diagnosing prostate cancer.展开更多
This systematic review was performed to compare the efficacy and complications of transperineal （TP） vs. transrectal （TR） prostate biopsy. A systematic research of PUBM ED, EMBASE and the Cochrane Library was perf...This systematic review was performed to compare the efficacy and complications of transperineal （TP） vs. transrectal （TR） prostate biopsy. A systematic research of PUBM ED, EMBASE and the Cochrane Library was performed to identify all clinical controlled trials on prostate cancer （PCa） detection rate and complications achieved by TP and TR biopsies. Prostate biopsies included sextant, extensive and saturation biopsy procedures. All patients were assigned to a TR group and a TP group. Subgroup analysis was performed according to prostate-specific antigen （PSA） levels and digital rectal examination （DRE） findings. The Cochrane Collaboration＇s RevMan 5.1 software was used for the meta-analysis. A total of seven trials, including three randomized controlled trials （RCTs） and four casecontrol studies （CCS）, met our inclusion criteria. There was no significant difference in the cancer detection rate between the sextant TR and TP groups （risk difference （RD）, -0.02; 95% confidence interval （CI）, -0.08-0.03; P=0.34）. Meta-analysis for RCTs combined with CCS showed that there was no difference in the cancer detection rate between the extensive TR and TP group （RD, -0.01; 95% CI, -0.05-0.04; P=0.81）. There was no significant difference in PCa detection rate between the saturation TR and TP approaches （31.4% vs. 25.7%, respectively;P=0.3）. There were also no significant differences in cancer detection between the TR and TP groups in each subgroup. Although the data on complications were not pooled for the meta-analysis, no significant difference was found when comparing TR and TP studies. TR and TP biopsies were equivalent in terms of efficiency and related complications. TP prostate biopsy should be an available and alternative procedure for use by urologists.展开更多
Prostate volume （PV） has been shown to be associated with prostate cancer （PCa） detection rates in men with a prostate-specific antigen （PSA） in the ＇grey zone＇ （2.0-10.0 ng ml-1）. However, the PSA ＇grey z...Prostate volume （PV） has been shown to be associated with prostate cancer （PCa） detection rates in men with a prostate-specific antigen （PSA） in the ＇grey zone＇ （2.0-10.0 ng ml-1）. However, the PSA ＇grey zone＇ in Asian men should be higher because the incidence of PCa in Asian men is relatively low. Therefore, we evaluated the association between PV and PCa detection rates in men with PSAs measuring 10-50 ng ml-1, Men who underwent a 13-core prostatic biopsy with PV documentation participated in the study. A multivariate stepwise regression was used to evaluate whether the PV at time of prostate biopsy could predict the risk of PCa. The rates of PCa among men in different PSA ranges, stratified by PV medians （〈60 and ≥60 ml）, were calculated. There were 261 men included in the final analysis. PV was the strongest predictor of PCa risk （odds ratio, 0.02; P〈0.001） compared to other variables. The PCa rates in men with PVs measuring 〈60 and ≥ 60 ml in the 10-19.9 ng ml-1 PSA group were 40.6% and 15.1%, respectively, while the rates for men with PSAs measuring 20-50 ng ml- 1 were 65.1% and 26.8%. PV is an independent predictor of PCa in men with PSA measuring 10-50 ng ml-1. In clinical practice, particularly for those countries with lower incidences of PCa, PV should be considered when counselling patients with PSAs measuring 10-50 ng ml-1 regarding their PCa risks.展开更多
目的:分析经尿道前列腺钬激光剜除术(HoLEP)治疗伴有前列腺穿刺病史的BPH患者的有效性和安全性。方法:回顾性分析2015年11月至2017年5月在江苏大学附属武进医院泌尿外科行HoLEP治疗的102例BPH患者的病史资料,根据有无前列腺穿刺活检病...目的:分析经尿道前列腺钬激光剜除术(HoLEP)治疗伴有前列腺穿刺病史的BPH患者的有效性和安全性。方法:回顾性分析2015年11月至2017年5月在江苏大学附属武进医院泌尿外科行HoLEP治疗的102例BPH患者的病史资料,根据有无前列腺穿刺活检病史分为两组,观察组为在行HoLEP手术前有前列腺穿刺活检病史,共42例(PB组);对照组为同一时期行HoLEP手术术前未行前列腺穿刺活检的患者,共60例(NPB组),比较两组患者的基线资料,围手术期相关参数及术后3、6、12个月的随访资料。结果:两组患者在年龄、前列腺体积、术前残余尿量(PVR)、术前最大尿流率(Qmax)、IPSS、生活质量(QOL)评分等方面没有统计学差异。PB组患者术前血PSA水平显著高于NPB组[(10.30±3.62)μg/L vs(2.62±1.75)μg/L,P<0.01],手术时间较NPB组延长[(78.00±18.25) min vs(67.93±15.89) min,P<0.01],亚组分析显示,手术时间延长主要发生在HoLEP与前列腺穿刺间隔<2周内的患者,其与间隔≥2周的患者间手术时间有统计学差异[(91.17±16.51) min vs(68.13±12.45) min,P<0.01]。两组患者术后血红蛋白下降值、术后持续膀胱冲洗时间、留置尿管时间以及平均住院时间比较无统计学差异。两组均无经尿道电切综合征、膀胱损伤、直肠损伤、输血等并发症。术后短暂性尿失禁的发生率无明显统计学差异[47.62%vs 45%,P=0.794]。术后随访3、6、12个月,两组患者PVR、Qmax、IPSSP、QOL评分均无统计学差异。结论:HoLEP手术治疗有前列腺穿刺病史的BPH患者安全、有效,前列腺穿刺后2周再行HoLEP可缩短手术时间,提高安全性。展开更多
文摘Nomograms for predicting the risk of prostate cancer developed using other populations may introduce sizable bias when applied to a Chinese cohort. In the present study, we sought to develop a nomogram for predicting the probability of a positive initial prostate biopsy in a Chinese population. A total of 535 Chinese men who underwent a prostatic biopsy for the detection of prostate cancer in the past decade with complete biopsy data were included. Stepwise logistic regression was used to determine the independent predictors of a positive initial biopsy. Age, prostate-specific antigen （PSA）, prostate volume （PV）, digital rectal examination （DRE） status, % free PSA and transrectal ultrasound （TRUS） findings were included in the analysis. A nomogram model was developed that was based on these independent predictors to calculate the probability of a positive initial prostate biopsy. A receiver-operating characteristic curve was used to assess the accuracy of using the nomogram and PSA levels alone for predicting positive prostate biopsy. The rate for positive initial prostate biopsy was 41.7% （223/535）. The independent variables used to predict a positive initial prostate biopsy were age, PSA, PV and DRE status. The areas under the receiver-operating characteristic curve for a positive initial prostate biopsy for PSA alone and the nomogram were 79.7% and 84.8%, respectively. Our results indicate that the risk of a positive initial prostate biopsy can be predicted to a satisfactory level in a Chinese population using our nomogram. The nomogram can be used to identify and counsel patients who should consider a prostate biopsy, ultimately enhancing accuracy in diagnosing prostate cancer.
基金This review was supported by Nationnal Natural Science Foundation of China （NSFC 81172439）.
文摘This systematic review was performed to compare the efficacy and complications of transperineal （TP） vs. transrectal （TR） prostate biopsy. A systematic research of PUBM ED, EMBASE and the Cochrane Library was performed to identify all clinical controlled trials on prostate cancer （PCa） detection rate and complications achieved by TP and TR biopsies. Prostate biopsies included sextant, extensive and saturation biopsy procedures. All patients were assigned to a TR group and a TP group. Subgroup analysis was performed according to prostate-specific antigen （PSA） levels and digital rectal examination （DRE） findings. The Cochrane Collaboration＇s RevMan 5.1 software was used for the meta-analysis. A total of seven trials, including three randomized controlled trials （RCTs） and four casecontrol studies （CCS）, met our inclusion criteria. There was no significant difference in the cancer detection rate between the sextant TR and TP groups （risk difference （RD）, -0.02; 95% confidence interval （CI）, -0.08-0.03; P=0.34）. Meta-analysis for RCTs combined with CCS showed that there was no difference in the cancer detection rate between the extensive TR and TP group （RD, -0.01; 95% CI, -0.05-0.04; P=0.81）. There was no significant difference in PCa detection rate between the saturation TR and TP approaches （31.4% vs. 25.7%, respectively;P=0.3）. There were also no significant differences in cancer detection between the TR and TP groups in each subgroup. Although the data on complications were not pooled for the meta-analysis, no significant difference was found when comparing TR and TP studies. TR and TP biopsies were equivalent in terms of efficiency and related complications. TP prostate biopsy should be an available and alternative procedure for use by urologists.
基金This work was supported by National Natural Science Foundation of China （No. 81072091/H 1619 ）, Guangdong Natural Science Foundation Grant, China （No. 10151006001000003） and the Key Project of Guangzhou Municipal Health Bureau Grant, China （No. 20121A021006） to Ping Tang.
文摘Prostate volume （PV） has been shown to be associated with prostate cancer （PCa） detection rates in men with a prostate-specific antigen （PSA） in the ＇grey zone＇ （2.0-10.0 ng ml-1）. However, the PSA ＇grey zone＇ in Asian men should be higher because the incidence of PCa in Asian men is relatively low. Therefore, we evaluated the association between PV and PCa detection rates in men with PSAs measuring 10-50 ng ml-1, Men who underwent a 13-core prostatic biopsy with PV documentation participated in the study. A multivariate stepwise regression was used to evaluate whether the PV at time of prostate biopsy could predict the risk of PCa. The rates of PCa among men in different PSA ranges, stratified by PV medians （〈60 and ≥60 ml）, were calculated. There were 261 men included in the final analysis. PV was the strongest predictor of PCa risk （odds ratio, 0.02; P〈0.001） compared to other variables. The PCa rates in men with PVs measuring 〈60 and ≥ 60 ml in the 10-19.9 ng ml-1 PSA group were 40.6% and 15.1%, respectively, while the rates for men with PSAs measuring 20-50 ng ml- 1 were 65.1% and 26.8%. PV is an independent predictor of PCa in men with PSA measuring 10-50 ng ml-1. In clinical practice, particularly for those countries with lower incidences of PCa, PV should be considered when counselling patients with PSAs measuring 10-50 ng ml-1 regarding their PCa risks.
文摘目的:分析经尿道前列腺钬激光剜除术(HoLEP)治疗伴有前列腺穿刺病史的BPH患者的有效性和安全性。方法:回顾性分析2015年11月至2017年5月在江苏大学附属武进医院泌尿外科行HoLEP治疗的102例BPH患者的病史资料,根据有无前列腺穿刺活检病史分为两组,观察组为在行HoLEP手术前有前列腺穿刺活检病史,共42例(PB组);对照组为同一时期行HoLEP手术术前未行前列腺穿刺活检的患者,共60例(NPB组),比较两组患者的基线资料,围手术期相关参数及术后3、6、12个月的随访资料。结果:两组患者在年龄、前列腺体积、术前残余尿量(PVR)、术前最大尿流率(Qmax)、IPSS、生活质量(QOL)评分等方面没有统计学差异。PB组患者术前血PSA水平显著高于NPB组[(10.30±3.62)μg/L vs(2.62±1.75)μg/L,P<0.01],手术时间较NPB组延长[(78.00±18.25) min vs(67.93±15.89) min,P<0.01],亚组分析显示,手术时间延长主要发生在HoLEP与前列腺穿刺间隔<2周内的患者,其与间隔≥2周的患者间手术时间有统计学差异[(91.17±16.51) min vs(68.13±12.45) min,P<0.01]。两组患者术后血红蛋白下降值、术后持续膀胱冲洗时间、留置尿管时间以及平均住院时间比较无统计学差异。两组均无经尿道电切综合征、膀胱损伤、直肠损伤、输血等并发症。术后短暂性尿失禁的发生率无明显统计学差异[47.62%vs 45%,P=0.794]。术后随访3、6、12个月,两组患者PVR、Qmax、IPSSP、QOL评分均无统计学差异。结论:HoLEP手术治疗有前列腺穿刺病史的BPH患者安全、有效,前列腺穿刺后2周再行HoLEP可缩短手术时间,提高安全性。
