648 External Validation of The European Randomized Study of Screening for Prostate Cancer Risk Calculator 3 (ERSPC-RC3) In the Detection of Prostate Cancer and Avoiding Unnecessary Prostate Biopsies

Author:

Desai C12,Ehsanullah S A12,Bhojwani A3,Dhanasekaran A12

Affiliation:

1. City Hospital, Birmingham, United Kingdom

2. Sandwell General Hospital, West Bromwich, United Kingdom

3. Russells Hall Hospital, Dudley, United Kingdom

Abstract

Abstract Introduction The Prostate Cancer Research Foundation – Stichting Wetenschappelijk Onderzoek Prostaatkanker group has devised the European Randomized Study of Screening for Prostate Cancer (CaP) Risk Calculator 3 (ERSPC-RC3) tool which aims to increase prostate cancer detection rates and avoid unnecessary prostate biopsies. We report the external validation and accuracy of the ERSPC-RC3 in our UK cohort. Method Retrospective data was collected for patients who had prostate biopsy at a multi-centre district general hospital over an 18-month period. The ERSPC-RC3 was applied to identify the probability of a positive biopsy for CaP (Gleason score ≥7). Results Out of 121 TRUS biopsies, 78 patients met the ERSPC-RC3 inclusion criteria. Patients were stratified as low-risk (detectable CaP risk <12.5%) n = 10, intermediate-risk (detectable CaP risk 12.5-20%) n = 8, and high-risk (detectable CaP risk >20%) n = 60 groups. All low-risk patients had a benign histology. Gleason 7 CaP was found in 37.5% from the intermediate-risk group and 41.7% in the high-risk group respectively. Conclusions Our results demonstrate that using ERSPC-RC3 could have prevented 44% (n = 34) of patients from having unnecessary biopsies. We recommend the use of ERSPC-RC3 to risk stratify patients being investigated for suspected CaP.

Publisher

Oxford University Press (OUP)

Subject

Surgery

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