Araştırma Çıktıları | TR-Dizin | WoS | Scopus | PubMed
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Item Initial neutrophil-to-lymphocyte ratio predicts radiation-induced trismus in parotid gland cancer(2023) Somay, Efsun; Yilmaz, Busra; Topkan, Erkan; Kucuk, Ahmet; Pehlivan, Berrin; Selek, Ugur; 0000-0001-8120-7123; 36349491; AAG-2213-2021ObjectiveTo investigate the link between pretreatment neutrophil-to-lymphocyte ratio(NLR) and the incidence of radiation-induced trismus(RIT) in parotid gland cancers(PGC) patients after postoperative radiotherapy(PORT). MethodData of PGC patients who had oral examinations before and after PORT were reviewed retrospectively. We comprised patients who had maximum mouth opening (MMO) assessments before and after PORT and complete blood count test on the first day of PORT. MMO of <= 35 mm was considered as RIT. The receiver operating characteristic (ROC) curve analysis was used to search for an ideal NLR threshold value that might be linked to RIT rates. ResultsFifty-one patients were included, with a RIT incidence of 15.7%. The NLR cutoff that showed a link with the prevalence of RIT in the ROC curve analysis was 2.7[Area under the curve (AUC):82.0%; sensitivity:87.5%; specificity:74.4%]. The patients were divided into groups based on this value:Group 1: NLR <= 2.7 (N = 34) and;NLR >2.7 (N = 17). In comparative analysis, the incidence of RIT was found to be statistically higher in the NLR >2.7 than counterpart (35.2%vs.5.8%;r(s):0.79; p < .001). Also, a mean temporomandibular joint dose >= 51.0Gy was linked to increased RIT rates (p < .001). ConclusionThis study showed that high pre-PORT NLR levels were a robust and independent predictor of significantly elevated rates of RIT.Item The role of neutrophil-to-lymphocyte ratio in predicting disease progression and emergency surgery indication in benign intestinal obstructions(2022) Tasci, Halil Ibrahim; 36043932BACKGROUND: The physiological response of the immune system to various stress factors results in an increase in neutrophil count and a decrease in lymphocyte count. In the light of this information, some studies have suggested using the ratio of these two parameters as an infection marker. The aim of this study was to investigate the role of neutrophil-to-lymphocyte ratio (NLR) derived from complete blood count, a very cost-effective and rapidly measurable parameter, in predicting the urgency of the surgical indication and disease progression in intestinal obstructions secondary to benign causes. METHODS: The data of patients who were admitted with the diagnosis of intestinal obstruction secondary to benign causes and underwent surgical intervention between January 2010 and January 2021 in Baskent University, Faculty of Medicine, Department of General Surgery, Konya Practice and Research Hospital were retrospectively analyzed. The data of 109 patients who met the study criteria and were included in the study were statistically analyzed. The correlation of admission NLR with factors indicating the severity of the disease such as intraoperatively detected ischemia, perforation, resection requirement, post-operative morbidity and mortality, and length of hospital stay was examined. Moreover, the diagnostic value of the NLR was compared with that of other infection mark-ers (such as C-reactive protein [CRP] and leukocyte). RESULTS: It was observed that the high NLR during admission to the hospital due to benign intestinal obstruction causes signif-icantly increased the risk of ischemia, resection requirement, post-operative complications, and mortality during surgery (p<0.05). Furthermore, increased NLR was found to be associated with prolonged hospitalization. In correlation analysis, consistent with the literature, a positive correlation was found between NLR and hospitalization time (p=0.03), CRP value (p<0.001), ischemia (p<0.001), perforation (p=0.007), presence of post-operative complications (p=0.009), and mortality (p=0.002). CONCLUSION: Our results show that the NLR has a very important role in predicting the course of the disease and surgical in-dication in benign intestinal obstructions.Item The Association Between Neutrophil-To-Lymphocyte Ratio and Contrast-Induced Acute Kidney Injury in Patients with Carotid Artery Stenting(2021) Osken, Altug; Oz, Ahmet; Keskin, Muhammed; Akdeniz, Evliya; Sahan, Hasan; Sisman, Seviye Bora; Cam, Nese; Sahin, Sinan; 33951973Objectives Contrast-induced acute kidney injury (CI-AKI) is a life-threatening complication that leads to comorbidities and prolonged hospital stay lengths in the setting of peripheral interventions. The presence of some CI-AKI risk factors has already been investigated. In this study, we evaluated the predictors of CI-AKI after carotid artery stenting. Methods A total of 389 patients with 50% to 99% carotid artery stenosis who underwent carotid artery stenting were included in this study. Patients were grouped according to CI-AKI status. Results CI-AKI developed in 26 (6.6%) patients. Age, baseline creatinine level, neutrophil-to-lymphocyte ratio and platelet-to-lymphocyte ratio were higher and estimated glomerular filtration rate, haemoglobin and lymphocyte count were lower in CI-AKI patients. In the multivariate regression analysis, the neutrophil-to-lymphocyte ratio triggered a 1.39- to 2.63-fold increase in the risk of CI-AKI onset (p < 0.001). Conclusions The neutrophil-to-lymphocyte ratio may be a significant predictor of CI-AKI in patients with carotid artery stenting and higher neutrophil-to-lymphocyte ratio values may be independently associated with CI-AKI.Item Neutrophil-to-lymphocyte ratio is prognostic in recurrent glioblastoma multiforme treated with bevacizumab plus irinotecan(2021) Haksoyler, Veysel; A Besen, Ali; Koseci, Tolga; Olgun, Polat; Bayram, Ertugrul; Topkan, Erkan; 33983042Aim: We intended to survey the prognostic utility of pretreatment neutrophil-to-lymphocyte ratio (NLR) as a novel prognostic index in recurrent glioblastoma multiforme (R-GBMs) treated with bevacizumab plus irinotecan (BEVIRI). Patients & methods: The present retrospective investigation incorporated the R-GBMs patients who underwent BEVIRI. The pre-BEVIRI NLR was calculated for each patient by utilizing the complete blood count tests obtained on the first day of BEVIRI. Results: The data of a total of 103 patients were analyzed. The ideal cut-off was identified at 3.04 (area under the curve: 60%; sensitivity: 60.3%; specificity 60%) for the pre-BEVIRI NLR. Low-NLR group had significantly longer overall survival times than the high-NLR group (15.8 vs 9.3 months; p = 0.015). Conclusion: NLR might be utilized as a novel biomarker in the prognostic stratification of the R-GBMs treated with BEVIRI.Item QTc interval is associated with increased inflammatory markers (neutrophil-to-lymphocyte ratio and LDH level) in COVID-19 patients(2021) Torun, Serife; Ozer, Nurtac; Celik, Olgun; Akcay, M. Sule; 0000-0002-7190-5443; AAD-5477-2021Purpose: This study aimed to investigate the association between QTc interval and laboratory parameters in COVID-19 patients before and after the treatment. Materials and Methods: Forty-three COVID-19 patients who had baseline and follow-up ECG findings and laboratory reports were evaluated and 40 patients were included in the study. Results: Among 40 patients, 16 were women and 24 were men. The neutrophil-to-lymphocyte ratio (NLR) and corrected QT (QTc) interval were significantly higher in females than males. After the treatment, a significant fall in CRP and ferritin values, and significantly prolonged QTc interval were seen. A significant positive correlation was observed between QTc interval and age, LDH levels, neutrophil and leukocyte count, NLR, magnesium levels, and heart rate of the patients prior to treatment. A positive correlation was observed between increased QTc interval and decreased LDH levels and NLR after treatment. Conclusion: QTc prolongation was associated with increased inflammatory markers, increased NLR and LDH levels before and after treatment in COVID-19 patients. The increase in the QTc interval was correlated with the reduction in LDH levels and NLR with treatment.Item The hematologic parameters in metastatic castration-resistant prostate cancer patients treated with abiraterone acetate(2019) Onal, Cem; Sedef, Ali Murat; Kose, Fatih; Oymak, Ezgi; Guler, Ozan Cem; Sumbul, Ahmet Taner; Aksoy, Sercan; Yildirim, Berna Akkus; Besen, Ali Ayberk; Muallaoglu, Sadik; Mertsoylu, Huseyin; Ozyigit, Gokhan; 0000-0001-6908-3412; 0000-0002-5573-906X; 0000-0002-0156-5973; 30977383; D-4793-2014; AAC-5654-2020Currently, there are no predictive markers of response to abiraterone. We calculated neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) at baseline and at 4 and 12 weeks after initiation of abiraterone, and we evaluated prostate-specific antigen (PSA) response every 4 weeks in 102 metastatic castration-resistant prostate cancer (mCRPC) patients treated with abiraterone either pre-or postchemotherapy. With a median follow-up was 24.0 months (range: 0.3-54.9), median overall survival (OS) was 20.8 months. High-NLR patients who remained high or who returned to low NLR after 4 and 12 weeks showed significantly worse OS than patients with low baseline NLR. NLR and prostate-specific antigen response to abiraterone was a significant predictor of OS and progression-free survival (PFS) in metastatic castration-resistant prostate cancer patients treated with abiraterone delivered either pre-or postchemotherapy.