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dc.contributor.advisorAlacacıoğlu, Ahmet
dc.contributor.authorKurtel, Gözde
dc.date.accessioned2020-12-10T12:19:35Z
dc.date.available2020-12-10T12:19:35Z
dc.date.submitted2015
dc.date.issued2018-08-06
dc.identifier.urihttps://acikbilim.yok.gov.tr/handle/20.500.12812/282666
dc.description.abstractMelanom immun süreçlerin aktif olduğu ve immuniteye bağlı spontan regresyonların saptandığı malign deri tümörüdür. Bu çalışmada, melanom hastalarında bazal nötrofil/lenfosit oranının (NLR) prognostik önemini araştırmayı hedefledik.Çalışmamıza 2006-2014 yılları arasında melanom tanısıyla takip edilen 94 hasta dahil edildi. Hastaların tanı anındaki demografik özellikleri ile hemogramları baz alınarak nötrofil sayısının lenfosit sayısına oranı retrospektif olarak hesaplandı. Roc eğrisi ile NLR cut off değeri 2,1 olarak belirlendi. Tüm hastalar NLR oranı 2,1 e göre yüksek ve düşük olarak gruplandırıldı ve istatistiksel inceleme yapıldı.Çalışmaya dahil edilen hastalardan 37'si tanı anında metastatik hasta iken, 57 hasta ise metastatik olmayıp adjuvan olarak interferon bazlı tedavi almıştı. Bazal NLR' nin tüm hasta grubunda genel sağkalım üzerine (NLR düşük olan grupta GSK 83,8 ay, NLR yüksek olan grupta GSK 23.8ay olup p<0.001) ve Adjuvan tedavi alan hastalarda ise hem GSK hem de HSK üzerine (NLR düşük olan grupta HSK 60,8 ay, yüksek olan grupta 14,4 ay olup p<0.05 -NLR düşük olan grupta GSK 70,3 ay, yüksek olan grupta 40,2 ay olup p<0.05) istatistiksel olarak anlamlı derecede etkili olduğu saptandı.Tümöre karşı gelişen immun yanıtın dolaylı bir göstergesi olarak değerlendirebileceğimiz NLR' nin melanomda hem GSK hem de HSK'da anlamlı sağkalım avantajı sağladığı belirlendi. Sonuç olarak bazal NLR melanom hastalarında prognostik açıdan yol gösterici olarak kullanılabilir.
dc.description.abstractMelanoma at which especially immune-processes are active and spontaneous regression related to immunity are detected is a malignant skin tumor. In this study, we aimed to investigate the prognostic significance of basal neutrophil / lymphocyte ratio (NLR) in melanoma patients.94 patients, followed by melanoma diagnosed between the years 2006-2014, were included in our study.Based on the patients' demographic characteristics and hemograms at the moment of diagnose, the ratio of neutrophils number to lymphocytes number were retrospectively calculated. NLR cut-off value was determined as 2.1 with Roc curve. All patients were classified as high and low with compared to the NLR cut-off value (2.1) and statistical analysis was performed.37 of the patients in the study were metastatic patients at the moment of diagnose, 57 patients were not metastatic and they had received interferon-based therapy as adjuvant. Basal NLR was found to be statistically significantly effective on overall survival (OS) in all patients ( at NLR low group, median OS was 83.8 months, at NLR high group median OS was 23.8 months and p<0.001) and in patients received adjuvant therapy, basal NLR was found to be statistically significantly effective on both overall survival (OS) and on disease-free survival (DFS) ( at NLR low group median DFS was 60.8 months, at NLR high group median DFS was 14.4 months and p<0.05 – at NLR low group median OS was 70.3 months, at NLR high group median OS was 40.2 months and p<0.05)NLR, which we can evaluate as an indirect indicator of immune response developed against tumor, was determined to provide significant survival advantage both on OS and on DFS in melanoma. As a result, basal NLR can be used as indicator in prognostic aspect in melanoma patients.en_US
dc.languageTurkish
dc.language.isotr
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightsAttribution 4.0 United Statestr_TR
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectOnkolojitr_TR
dc.subjectOncologyen_US
dc.titleMelanomda yeni bir biyobelirteç olarak nötrofil/lenfosit oranının prognostik önemi
dc.title.alternativePrognostic significance of neutrophil /lymphocyte ratio as a new biyomarker at melanoma
dc.typedoctoralThesis
dc.date.updated2018-08-06
dc.contributor.departmentİç Hastalıkları Anabilim Dalı
dc.subject.ytmMelanoma
dc.subject.ytmBiomarkers
dc.subject.ytmNeutrophils
dc.subject.ytmLymphocytes
dc.subject.ytmNevus
dc.subject.ytmSkin neoplasms
dc.subject.ytmNeoplasms
dc.subject.ytmPrognosis
dc.identifier.yokid10065214
dc.publisher.instituteİzmir Atatürk Eğitim ve Araştırma Hastanesi
dc.publisher.universityİZMİR KATİP ÇELEBİ ÜNİVERSİTESİ
dc.type.submedicineThesis
dc.identifier.thesisid406725
dc.description.pages55
dc.publisher.disciplineDiğer


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