CAN NEUTROPHIL-LYMPHOCYTE RATIO (NLR) AND PLATELET-LYMPHOCYTE RATIO (PLR) BE PROGNOSTIC INDICATORS FOR OPERATIVE COMPLICATIONS AND SURVIVAL IN BONE METASTASES?

Abstract

Introduction: In general, inflammation stimulates the production and release of neutrophils and, at the same time, decreases the production of lymphocytes. Lymphopenia reflects that cell-mediated immunity is impaired, while neutrophilia represents a response to systemic inflammation in these cancers.

Objective: To review the incidence of complications and postoperative survival rates in patients with bone metastases in long bones, correlating them with markers NLR and PLR.

Method: Narrative review carried out collecting information published on virtual platforms in Portuguese and English, initially carried out by searching for descriptors related to the topic, which were: “lower extremity, surgery, metastasis, epidemiology, postoperative complications, neutrophils, lymphocytes, platelets”. The extension incorporated AND or OR, by title and/or summary, and full reading of the texts most related to the topic.

Result: 21 articles were included.

Conclusion: The higher both the NLR and PLR are associated with lower survival in patients with bone metastases when undergoing surgical treatment, especially after 3 months postoperatively. However, there is still no confirmation that they signal any outcome, favorable or not, in relation to postoperative complications.