Work

A novel positive surgical margin-based scoring system to predict oncologic outcomes after radical prostatectomy

Year: 2026

Type: article

Abstract: BACKGROUND: The presence of positive surgical margins after radical prostatectomy is a well-established adverse prognostic factor. While some of these patients experience an aggressive clinical course, others do not. Making decisions about adjuvant or salvage treatment after positive surgical margins is particularly challenging. To better address this challenge, we present the results of a risk stratification model developed through detailed analysis of tumor characteristics at the surgical margin. METHODS: We retrospectively analyzed 63 patients with positive surgical margins after radical prostatectomy who had no lymph node involvement and had not received neoadjuvant or adjuvant therapy. The BEUN risk score integrates four pathologic features: number of positive foci, total margin extent, Gleason score at the margin, and concordance between margin and specimen grade. Based on the total score, patients were stratified into three risk categories: low risk (3–5 points), moderate risk (6–8 points), and high risk (9–12 points). Cox regression analysis identified predictors of biochemical recurrence-free survival (BRFS) and clinical progression-free survival (CPFS). Survival analyses across risk groups were performed using the Kaplan–Meier method. RESULTS: Biochemical recurrence occurred in 20 patients (32%) and clinical progression in 20 patients (32%). On multivariate analysis, the BEUN risk score independently predicted both BRFS (HR 1.23, 95% CI 1.08–1.40, p = 0.002) and CPFS (HR 1.28, 95% CI 1.06–1.54, p = 0.010). High-risk patients had a 4.7-fold higher hazard of biochemical recurrence (p = 0.001) and a 5.3-fold higher hazard of clinical progression (p = 0.011) compared with low-risk patients. Five-year BRFS rates were 58.8%, 24.1%, and 5.9% for low-, moderate-, and high-risk groups, respectively (p < 0.001). CONCLUSION: The BEUN risk score is an independent predictor of BRFS and CPFS. This tool may provide additional support for postoperative risk stratification in patients with positive surgical margins. CLINICAL TRIAL REGISTRATION: Not applicable. This study is a retrospective observational cohort study and does not meet the criteria for clinical trial registration.

Source: BMC Surgery

DOI: 10.1186/s12893-026-03683-9

Authors: Yavuz Mert Aydın, Banu Dogan Gun, Eda Aymen Seker, Necmettin Aydın Mungan

Institution: Zonguldak Bülent Ecevit University

Language: English

Topic: Prostate Cancer Diagnosis and Treatment

Subfield: Pulmonary and Respiratory Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $3,090