Peripheral blood lymphocyte/monocyte ratio predicts outcome in follicular lymphoma and in diffuse large B-cell lymphoma patients in the rituximab era.
2015
Abstract Background Diffuse large B-cell lymphoma is an aggressive lymphoma and a large number of studies have therefore focused on the search for prognostic factors. The same interest concerns FL, for which identification of patients candidates for watch and wait (WW the role of this ratio in FL in the rituximab era is unknown. Patients and Methods We retrospectively analyzed 137 DLBCL and 132 FL patients referred to our institution; among FL pts, a W&W approach was performed at diagnosis for 42 patients. The remaining patients were treated with rituximab-containing therapy. We analyzed different LMR cutoff values at diagnosis and we wanted to investigate the prognostic effect among DLBCL and FL. Results We found that the most discriminative LMR was 2.4 for DLBCL and 2 for FL. Among DLBCL patients, an LMR value 2 was associated with a longer time to treatment start compared with the LMR P = .0096). Among the 92 patients treated with rituximab chemotherapy, 2-year PFS was superior in the LMR > 2 group. Conclusion LMR at diagnosis is a simple tool to better define long-term outcome of DLBCL and FL patients. The use of this tool might better define selection in FL of ideal candidates for W&W strategy.
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