AB0 blood groups and oncological and functional outcomes in bladder cancer patients treated with radical cystectomy

Abstract

Objectives: We investigated AB0 blood groups prevalence according to preoperative and pathological tumor characteristics, and their association with oncological outcomes, and renal function decline in a contemporary large cohort of bladder cancer (BCa) patients, who underwent radical cystectomy (RC) at a tertiary referral center. Materials and Methods: We retrospectively evaluated data of patients with histologically confirmed and clinically non metastatic BCa, who underwent RC between 2014 and 2021 at our Institution. Kaplan-Meier (KM) plots and Cox regression (CR) models tested the relationship between AB0 blood groups and local recurrence-, metastasis-, cancer specific mortality-, and overall mortality-free survival. Logistic regression (LR) models tested the association between AB0 blood groups and renal function decline, defined as an estimated Glomerular Filtration Rate (eGFR) 0.05 in all cases). Patients with group AB presented the lowest median eGFR at each time point. In multivariable LR analyses addressing renal function decline, group AB was independently associated with eGFR< 60 mL/min at discharge (Odds Ratio: 4.28, p = 0.047). Conclusions: Among AB0 blood groups, patients with group 0 exhibited the most aggressive tumor profile. However, no differences were recorded in recurrence or survival rates. Group AB independently predicted renal function decline at discharge.

Keywords

• ABO
• Blood groups
• Bladder Cancer
• Radical Cystectomy
• Outcomes