Prognostic significance of lymphocyte-to-monocyte ratio in patients with classical Hodgkin lymphoma before and after receiving first-line chemotherapy

Introduction
Despite the presence of a prognostic risk stratification sco-ring system for Hodgkin lymphoma (HL), the lymphocyte-to-monocyte ratio (LMR) is a simple and low-cost test that has been investigated as a prognostic marker to evaluate the clinical course and survival outcomes.

Material and methods
We prospectively enrolled 92 patients with classical HL (CHL), who were diagnosed and treated in the period from April 2017 to April 2020. Lymphocyte monocyte ratio cut-off values were estimated using receiver operating characteristic curves.

Results
We found that patients with LMR < 1.4 at the time of diagnosis had poorer progression-free survival (PFS) and overall survival (OS) than those with LMR > 1.4. Patients with increased LMR values after the first 2 cycles of chemotherapy had better PFS and OS; meanwhile, patients who had low LMR after the end of chemotherapy had poorer PFS and OS in comparison to patients who gained higher value after the completion of all cycles of chemotherapy.

Conclusions
A rise of LMR value indicated better outcome and better survival rate, so it can be an independent prognostic factor for survival and to predict outcome in patients with CHL.