Abstract
Inflammation plays a key role in malignant tumor progression. The neutrophil-to-lymphocyte ratio (NLR) is a marker of systemic inflammation and, as such, high isolated pretreatment NLR has been shown to be associated with worse long-term outcomes. The aim of the present study is to evaluate the prognostic value of pre- and post-operative NLR in relation to mortality and recurrence rates in patients undergoing lung lobectomy for NSCLC. A single-center retrospective analysis of 534 lobectomies was performed between 2009 and 2018. NLR was measured in two opportunities: 1 month prior to surgery and 1–4 months after. Primary outcomes were overall survival (OS) and recurrence-free survival (RFS). Secondary outcomes were variables associated with mortality and recurrence. The study sample included 264 lobectomies. Independent predictors of OS were ASA 3/4 (p = 0.041) and open surgical approach (p = 0.042). Adjuvant chemotherapy (p = 0.002) and pathological N 1/2-stage (p = 0.0015) were associated with RFS. Delta NLR correlated with OS (p = 0.042) and RFS (p < 0.001). Patients were divided into three delta NLR categories: delta NLR < 0, delta NLR 0–0.5 and delta NLR > 0.5. Increasing delta NLR was significantly associated with worse OS (p < 0.001) and RFS (p < 0.001). Dynamic behaviour of NLR assessed through delta NLR is a useful tool that potentially allows predicting mortality and recurrence outcomes in patients undergoing lung lobectomy for NSCLC and may be more informative than static baseline values.
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Abbreviations
- NLR:
-
Neutrophil–lymphocyte ratio
- OS:
-
Overall survival
- RFS:
-
Recurrence-free survival
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RM: conceptualization, formal analysis, writing-original draft, writing-review and editing, visualization. CL: formal analysis, writing-review and editing, visualization. CF: formal analysis, writing-review and editing, visualization. CF: resources. DA: conceptualization, methodology, supervision. SD: project administration, supervision.
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Micaela, R., Lucas, C., Franco, C. et al. Dynamic perioperative variation of neutrophil-to-lymphocyte ratio as an independent prognosis factor following lobectomy for NSCLC. Updates Surg 73, 1567–1574 (2021). https://doi.org/10.1007/s13304-020-00936-x
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DOI: https://doi.org/10.1007/s13304-020-00936-x