• Yi Wang, Xizhi Wang, Jiang Yu, Jun Ouyang, Weidong Shen, Yibin Zhou, Jianquan Hou, Duangai Wen, Jinxian Pu, Yuxi Shan, and Boxin Xue.
• Department of Urology, The Suzhou Kowloon Hospital Affiliated to Shanghai Jiaotong University, Medical School, Suzhou, Jiangsu, China.
• J Res Med Sci. 2016 Jan 1; 21: 79.

BackgroundTransrectal ultrasound-guided repeat needle biopsy (TUGRNB) is widely used for diagnosis of prostate cancer (PCa). However, significance of TUGRNB in Chinese population was rarely reported. A retrospective study was conducted to evaluate the significance of TUGRNB applied in prediction of PCa in Chinese population.Materials And MethodsA total of 960 from January 2009 to December 2012 were included. Repeat needle biopsy rate and PCa positive detection rate were evaluated. Relationship between prostate specific antigen (PSA) levels and PCa positive rates was analyzed.ResultsPCa positive detection rate after initial needle biopsy was 28.4%, which was lower than the rate of repeat needle biopsy (40%). The rate for immediate transurethral resection (TUR), surgery after initial needle biopsy, was 27.1%, however with a low PCa positive detection rate (0.66%). The repeat needle biopsy rate was lower compared with the initial biopsy rate (P < 0.05). Meanwhile, immediate TUR rate was significantly higher than that of the repeat needle biopsy rate (P < 0.05). Among the three groups, the PCa positive detection rate in repeat needle biopsy group was the highest. In subgroups with different PSA levels, the PCa positive rate increased with the elevation of PSA level. In cases with PSA > 20 ng/ml, PCa positive rate was significantly higher than those with PSA < 20 ng/ml (P < 0.05).ConclusionPCa positive detection rate following repeat needle biopsy in Chinese population was higher, although the repeated needle biopsy rate was still in a low level. TUGRNB should attract more attention in the diagnosis of PCa.

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