OBJECTIVE: To evaluate the clinical prognostic value of preoperative serum De Ritis ratio (DRR; aspartate aminotransferase/alanine aminotransferase) on postoperative survival outcomes in patients with radiation-recurrent prostate cancer (PCa) who underwent salvage radical prostatectomy (SRP). PATIENTS AND METHODS: A retrospective review was conducted of patients with radiation-recurrent PCa who underwent SRP in five tertiary referral centres from 2007 to 2015. An increased preoperative serum DRR was defined as ≥1.35. The association between DRR and postoperative outcomes was tested. Multivariate Cox analyses were performed to identify the independent predictors of biochemical recurrence (BCR), metastases-free survival (MFS), overall survival (OS), and cancer-specific survival (CSS). RESULTS: Overall 214 patients underwent SRP, of them 98 (45.8%) with a high serum DRR were included in the study. In a multivariate analysis high DRR was an independent predictor of BCR [hazard ratio (HR) 1.79, 95% confidence interval (CI) 1.16-2.78; P = 0.009]. No significant association was found between preoperative DRR and MFS (HR 1.32, 95% CI 0.53-3.30; P = 0.55), OS (HR 2.35, 95% CI 0.84-6.57; P = 0.10), and CSS (HR 3.36, 95% CI 0.65-17.35; P = 0.15). CONCLUSION: Increased preoperative serum DRR is associated with the development of BCR in patients with radiation-recurrent PCa who underwent SRP. DRR might serve as an early indicator of BCR, which may facilitate recognition of potential relapse and could translate into more intense follow-up and even salvage therapy in selected patients. ABBREVIATIONS: ADT: androgen-deprivation therapy; BCR, biochemical recurrence; BCRFS: BCR-free survival; CSS: cancer-specific survival; DRR: De Ritis ratio; HR: hazard ratio; MFS: metastasis-free survival; PCa: Prostate Cancer; OS: overall survival; PLND: pelvic lymph node dissection; (EB)RT: (external beam) radiotherapy; SRP: salvage radical prostatectomy.

Department of Urology 2nd Faculty of Medicine Charles University Prague Czech Republic

Department of Urology Comprehensive Cancer Center Medical University of Vienna Vienna Austria

Department of Urology Jikei University School of Medicine Tokyo Japan

Department of Urology King Fahad Specialist Hospital Dammam Saudi Arabia

Department of Urology Rennes University Hospital Rennes France

Department of Urology University Hospital Cologne Cologne Germany

Department of Urology University Medical Center Hamburg Eppendorf Hamburg Germany

Department of Urology University of Texas Southwestern Dallas TX USA

Department of Urology Weill Cornell Medical College New York NY USA

Division of Urology Department of Special Surgery Jordan University Hospital the University of Jordan Amman Jordan

Institute for Urology and Reproductive Health 1 M Sechenov 1st Moscow State Medical University Moscow Russia

Research Center for Evidence Based Medicine Tabriz University of Medical Sciences Tabriz Iran

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The role of lymph node dissection in salvage radical prostatectomy for patients with radiation recurrent prostate cancer