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    Assessment of prognostic value of "neutrophil to lymphocyte ratio" and "prognostic nutritional index" as a sytemic inflammatory marker in non-small cell lung cancer
    (Asian Pacific Organization for Cancer Prevention, 2015) Köş, Fahriye Tuğba; Hocazade, Cemil; Köş, Mehmet; Uncu, Doğan; Karakaş, Esra; Doğan, Mutlu; Zengin, Nurullah
    Background: Systemic inflammatory response was shown to play an important role in development and progression of many cancer types and different inflammation-based indices were used for determining prognosis. We aimed to investigate the prognostic effects of neutrophil to lymphocyte ratio (NLR) and prognostic nutritional index (PNI) in patients with non-small cell lung cancer (NSCLC). Materials and Methods: NSCLC patients diagnosed in our institution were retrospectively reviewed. Demographic and clinicopathologic characteristics were recorded. NLR and PNI was calculated before the application of any treatment. Results: A total of 138 patients were included in the study. Patients were divided into two groups according to NLR (<3.24 or ? 3.24) and PNI (<49.5 or ? 49.5). While median overall survival was 37.0 (95% CI 17.5-56.5) months in the group with low NLR, it was calculated as 10.0 (95%CI 5.0-15.0) months in the group with high NLR (p<0.0001). While median overall survival was 7.0 (95%CI 3.5-10.5) months in the group with low PNI, it was calculated as 33.0 (95% CI 15.5-50.4) months in the group with high PNI (p<0.0001). Stage, NLR and PNI levels were evaluated as independent risk factors for overall survival for all patients in multivariate analysis (p<0.0001, p=0.04 and p<0.001, respectively). Conclusions: NLR (?3.24) and PNI (<49.5) at diagnosis is an independent marker of poor outcome in patients with NSCLC. NLR and PNI is an easily measured, reproducible prognostic tests that could be considered in NSCLC patients.
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    ASSOCIATION BETWEEN BLOOD UREA NITROGEN/ALBUMIN RATIO AND PROGNOSIS IN NON-SMALL CELL LUNG CANCER
    (Carbone Editore, 2015) Köş, Mehmet; Hocazade, Cemil; Köş, Fahriye Tuğba; Uncu, Doğan; Karakaş, Esra; Doğan, Mutlu; Zengin, Nurullah
    Introduction: Prognostic value of easily available and reproducible laboratory parameters is investigated for non-small cell lung cancer (NSCLC) of which mortality is still high. We aimed to determine the prognostic value of blood urea nitrogen/albumin (BUN/albumin) ratio. Methods: ClinicoPathological characteristics with treatment modalities and laboratory values of NSCLC patients at our center evaluated retrospectively. A total of 142 patients were included to the study. Results: Median age was 57 (range 26-83). Receiver operating characteristic (ROC) curves for overall survival prediction were plotted to verify, the optimum cut-off point for BUN/albumin ratio. The recommended cut-off values for BUN/albumin ratio was 0.80 with a sensitivity of 60.0% and a specificity of 60.0%. While median overall survival was 26.0 (95% CI: 14.2-37.7) months in the group with low BUN/albumin ratio (<0.80), it was Calculated as 10.0 (95% CI: 5.2-14.8) months in the group with high BUN/albumin ratio (>= 0.80). The difference between groups was statistically significant (p=0.005). Conclusion: BUN/albumin ratio seems to be a significant prognostic index in NSCLC. It is not only simple but also inexpensive and reproducible. However, it needs further prospective trials with large number of patients.
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    Evaluation of the effects of red blood cell distribution width on survival in lung cancer patients
    (Termedia Publishing House Ltd, 2016) Köş, Mehmet; Hocazade, Cemil; Köş, Fahriye Tuğba; Uncu, Doğan; Karakaş, Esra; Doğan, Mutlu; Zengin, Nurullah
    Aim of the study: Data are available indicating that red blood cell distribution width (RDW) is higher in cancer patients compared to healthy individuals or benign events. In our study, we aimed to investigate the influence of different RDW levels on survival in lung cancer patients. Material and methods: Clinical and laboratory data from 146 patients with lung cancer and 40 healthy subjects were retrospectively studied. RDW was recorded before the application of any treatment. Patients were categorised according to four different RDW cut-off values (median RDW, RDW determined by ROC curve analysis, the upper limit at the automatic blood count device, and RDW cut of value which used in previous studies). Kaplan-Meier survival analysis was used to examine the effect of RDW on survival for each cut-off level. Results: The median age of patients was 56.5 years (range: 26-83 years). The difference in median RDW between patients and the control group was statistically significant (14.0 and 13.8, respectively, p = 0.04). There was no difference with regard to overall survival when patients with RDW = 14.0 were compared to those with RDW < 14.0 (p = 0.70); however, overall survival was 3.0 months shorter in low values of its own group in each of the following cut-off values: >= 14.2 (p = 0.34), >= 14.5 (p = 0.25), >= 15 (p = 0.59), although no results were statistically significant. Discussion: We consider that the difference between low and high RDW values according to certain cut-off values may reflect the statistics of larger studies although there is a statistically negative correlation between RDW level and survival.
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    Prognostic role of pretreatment platelet/lymphocyte ratio in patients with non-small cell lung cancer
    (Springer Wien, 2016) Köş, Mehmet; Hocazade, Cemil; Köş, Fahriye Tuğba; Uncu, Doğan; Karakaş, Esra; Doğan, Mutlu; Zengin, Nurullah
    It was reported that hematological markers of systemic inflammatory response might be prognostic in various cancer types. We aimed to evaluate the platelet/lymphocyte ratio (PLR) as a prognostic factor and its effect on overall survival in non-small cell lung cancer (NSCLC). Clinicopathological characteristics and basal (pretreatment) PLR of 145 patients with NSCLC were evaluated retrospectively. The preoperative or pretreatment blood count data were obtained from the recorded computerized database. PLR was defined as the absolute platelet count divided by the absolute lymphocyte count. A total of 145 patients were enrolled. Median age was 57 years(range 26-83). Receiver operating characteristic curves for overall survival prediction were plotted to verify the optimum cut-off point for PLR. The recommended cut-off values for PLR was 198.2 with a sensitivity of 65.0 % and a specificity of 71.4 %. Median overall survival was 34.0 (95 % confidence interval (CI) 14.7-53.3) months in the group with low PLR (< 198.2), while it was 11.0 (95 % CI 5.6-16.3) months in the group with high PLR (aeyen 198.2). The difference between the groups was statistically significant (p < 0.0001). Our study supports the view that a high basal PLR is a poor prognostic factor in NSCLC. However, the validity of the cut-off values for PLR identified in our study needs further prospective trials.