Prognostic Significance of the Lymphocyte-to-Monocyte Ratio in Bladder Cancer Undergoing Radical Cystectomy: A Meta-Analysis of 5638 Individuals

Abstract EN

Introduction.

A growing number of studies have explored the association between the pretreatment lymphocyte-to-monocyte ratio (LMR) and survival outcomes in various cancers.

However, its prognostic significance on bladder cancer remains inconsistent.

The aim of this meta-analysis was to evaluate the prognostic value of pretreatment LMR in bladder cancer.

Methods.

The MEDLINE, EMBASE, Cochrane Library, and CNKI databases were comprehensively searched for relevant studies.

A meta-analysis of overall survival (OS), recurrence-free survival (RFS), or cancer-specific survival (CSS) clinicopathological features was conducted.

Results.

Nine studies containing 5,638 cancer patients were analyzed in this meta-analysis.

Patients with high LMR tended to have favourable OS (HR: 0.63, 95% CI: 0.50-0.80, P<0.001), RFS (HR: 0.59, 95% CI: 0.38-0.91, P=0.017), and CSS (HR: 0.76, 95% CI: 0.70-0.83, P<0.001).

Moreover, low LMR was highly correlated with age (≥60), differentiation (low), T stage (III-IV), lymph node metastasis (yes), and concomitant Cis (yes).

Conclusion.

Pretreatment LMR might be a useful predictor of survival outcomes in patients with bladder cancer.