Transrectal ultrasonography of intravesical prostatic protrusion and the detection rate of clinically significant prostate cancer
Objective:To investigate the value of transrectal ultrasonography(TRUS)in the detection of clinically significant prostate cancer(CsPCa)in patients with intravesical prostatic protrusion(IPP).Methods:We retrospectively analyzed the data on 128 patients undergoing TRUS-guided prostate biopsy in the General Hospital of Eastern Theater Command and Jiangsu Province Hospi-tal from January 2019 to December 2022.We measured the size of and graded IPP,compared the clinicopathological and ultrasono-graphic features of the patients in the CsPCa group(Gleason score≥7)and those in the control group(Gleason score<7),and ana-lyzed the correlation of the IPP grades with the detection rate of CsPCa by multivariate logistic regression analysis.Results:The prostate volume was significantly higher in the CsPCa group than in the control([51.3±12.1]vs[43.5±11.3]ml,P<0.05),whilethe PSAdensity(PSAD)remarkablylowerin the former than in the latter([0.45±1.92]vs[0.59±2.14]ng/ml,P<0.05)and so was the detection rate of CsPCa in the patients with IPP grade3 than in those with IPP grades0,1 and2(56.0%vs 85.4%,87.1%and 80.6%,P<0.05).Spearman correlation analysis showed that the Gleason score was correlated positively with the prostate volume(r=0.612)but negatively with PSAD(r=-0.735)and the IPP grade(r=-0.619)(P<0.05).Logis-tic regression analysis indicated that IPP grade3(OR:0.690,95%CI:0.380-0.995,P=0.032)was an independent protective factor for CsPCa.Conclusion:CsPCa is significantly correlated with the IPP grade,and the detection rate of CsPCa by TRUS-guided biopsy is lower in patients with IPP grade 3 than in those with IPP grades 0-2.Therefore,special attention should be paid to false negative probability in case of high-grade IPP.
prostate cancertransrectal ultrasonographyintravesical prostatic protrusionclinically significant prostate cancer
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