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Association Between Preoperative De Ritis (AST/ALT) Ratio and Oncological Outcomes Following Radical Cystectomy in Patients With Urothelial Bladder Cancer

Published:October 25, 2021DOI:https://doi.org/10.1016/j.clgc.2021.10.007

      Abstract

      Background

      Radical cystectomy in combination with neoadjuvant chemotherapy is the standard of care for muscle invasive bladder cancer (BC). However, response to treatment varies between patients. Considering the role of hepatic glucose metabolism in urothelial cancer, AST/ALT ratio (De Ritis ratio) has the potential to serve as a prognostic factor for bladder cancer and a predictor for treatment outcome.

      Materials and Methods

      We retrospectively analyzed patients who underwent radical cystectomy between March 2016 - March 2019. Patients were classified into 2 groups based on De Ritis ratio (< 1.3 [normal] vs. ≥ 1.3 [high]). Demographics, disease severity, treatment status, and disease outcome (90-day mortality and overall survival [OS]) were compared between 2 groups.

      Results

      A total of 89 patients were included, 62.9% of them having a De Ritis ratio of < 1.3 and 37.1% with a De Ritis ratio of ≥ 1.3. Mean OS was significantly higher in patients with normal De Ritis ratio (40.84 vs. 18.28 months, P < .001), and 90-day mortality rate was lower in these patients (8.9% vs. 36.4%, P = .001). Moreover, De Ritis ratio was the sole independent predictor of OS in multivariable regression analysis.

      Conclusion

      De Ritis ratio is an independent prognostic factor in BC patients who underwent radical cystectomy. Furthermore, higher De Ritis ratio is associated with worse OS and a higher 90-day mortality rate after surgery, and therefore, has the potential to serve as a predictor of treatment outcome in BC patients.

      Keywords

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