Abstract:
:Extranodal NK/T-cell lymphoma, nasal type (NKTL) is an aggressive type of non-Hodgkin lymphoma closely associated with Epstein-Barr virus and characterized by varying degrees of systemic inflammation. We aim to examine the prognostic significance of peripheral blood neutrophil-lymphocyte ratio (NLR) in patients with NKTL. Therefore, we conducted a retrospective review of 178 patients with biopsy-proven NKTL from the National Cancer Centre Singapore and Samsung Medical Center, South Korea. Using receiver operating curve analysis, an optimal cut-off for high NLR (>3.5) in predicting overall survival (OS) was derived. Survival analysis was performed using the Kaplan-Meier method and multivariable Cox proportional regression. In patients with high NLR, estimated 5-year OS was 25% compared to 53% in those with low NLR. In multivariable analysis, high NLR, in addition to age ≥60 years, presence of B-symptoms and stage III/IV at diagnosis, was independently correlated with worse OS (HR 2.08; 95% CI 1.36 to 3.18; p = 0.0008) and progression-free survival (HR 1.66; 95% CI 1.11 to 2.46; p = 0.0128). A new prognostic index (NABS score) derived from these factors stratified patients into low (0), low-intermediate (1), high-intermediate (2) and high (3-4) risk subgroups, which were associated with 5-year OS of 76.5%, 55.7%, 29.2% and 0% respectively. In conclusion, high NLR is an independent prognostic marker and the NABS model can be used to risk-stratify NKTL patients.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Tan KM,Chia B,Lim JQ,Khoo LP,Cheng CL,Tan L,Poon E,Somasundaram N,Farid M,Tang TPL,Tao M,Cheah DMZ,Laurensia Y,Pang JWL,Song T,Tan J,Huang D,Kim SJ,Kim WS,Ong CK,Lim ST,Chan JYdoi
10.1038/s41598-019-51522-0subject
Has Abstractpub_date
2019-10-18 00:00:00pages
14961issue
1issn
2045-2322pii
10.1038/s41598-019-51522-0journal_volume
9pub_type
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