14 results on '"KIRKIZLAR, HAKKI ONUR"'
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2. Sarcopenia in Hodgkin’s lymphoma evaluated with 18-FDG PET/CT, focus on age, performance, and treatment
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Bas, Volkan, Umit, Elif Gulsum, Korkmaz, Ulku, Baysal, Mehmet, Karaman Gulsaran, Sedanur, Demirci, Ufuk, Kirkizlar, Hakki Onur, Durmus Altun, Gulay, and Demir, Ahmet Muzafer
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- 2021
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3. Concepts of Double Hit and Triple Hit Disease in Multiple Myeloma, Entity and Prognostic Significance
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Baysal, Mehmet, Demirci, Ufuk, Umit, Elif, Kirkizlar, Hakki Onur, Atli, Emine Ikbal, Gurkan, Hakan, Gulsaran, Sedanur Karaman, Bas, Volkan, Mail, Cisem, and Demir, Ahmet Muzaffer
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- 2020
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4. Castleman hastalığı: Türkiye’den çok merkezli bir olgu serisi
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ÖZCAN, ALPER, Bulduk, Tuba, KARATAŞ, AYŞE, Sengoz, Ceyda Ozcelik, ÇAĞLIYAN, GÜLSÜM AKGÜN, Kucukdiler, Ayse Hilal Eroglu, Celkan, Tiraje, AKDENİZ, AYDAN, GÜVEN, ZEYNEP TUĞBA, Kis, Cem, Ipek, Yildiz, Ekinci, Omer, Maral, Senem, Karakus, Sema, ÇENELİ, ÖZCAN, PAYDAŞ, SEMRA, Kucukyurt, Selin, ELVERDİ, TUĞRUL, CANDAR, ÖMER, ÖZKALEMKAŞ, FAHİR, ÖZKOCAMAN, VİLDAN, KARAMAN GÜLSARAN, SEDANUR, Umit, Elif Gulsum, KIRKIZLAR, HAKKI ONUR, GÜNDÜZ, EREN, ÖREN, HALE, Ozdemir, Gul Nihal, Ozturk, Sule Mine Bakanay, TÖRET, ERSİN, KARTAL, İBRAHİM, CANBOLAT AYHAN, AYLİN, Apak, Fatma Burcu Belen, İstinye Üniversitesi, Tıp Fakültesi, Dahili Tıp Bilimleri Bölümü, and Celkan, Tulin Tiraje
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lymph node biopsy ,Male ,plasma cell ,Turkey ,retrospective study ,diarrhea ,clinical outcome ,thrombocytopenia ,immunoglobulin A ,hyalin ,etoposide ,Turkey (republic) ,computer assisted tomography ,immunoglobulin G ,case study ,rituximab ,middle aged ,inguinal lymph node ,Human herpesvirus 8 ,Child ,siltuximab ,fever ,C reactive protein ,Human immunodeficiency virus ,acute phase protein ,adult ,prednisolone ,clinical trial ,Hematology ,chronic kidney failure ,lymph node ,anemia ,female ,sweating ,anorexia ,histopathology ,positron emission tomography-computed tomography ,epidemiology ,coronary artery disease ,cyclophosphamide plus doxorubicin plus prednisolone plus rituximab plus vincristine ,Castleman disease ,overall survival ,lenalidomide ,olanzapine ,interleukin 6 ,doxorubicin ,vincristine ,Article ,histology ,tocilizumab ,hepatomegaly ,demographics ,turkey (bird) ,Unicentric ,lymphadenopathy ,cervical lymph node ,follow up ,Humans ,cyclosporine ,human ,bendamustine ,arthralgia ,coughing ,outcome assessment ,Retrospective Studies ,splenomegaly ,abdominal pain ,Kaposi sarcoma ,lactate dehydrogenase ,hypoalbuminemia ,clinical assessment ,major clinical study ,methylprednisolone ,body weight loss ,human tissue ,axillary lymph node ,Treatment ,multicenter study ,Multicentric ,lymphocytopenia ,CD3 antigen ,prednisone ,excision ,angiofollicular lymph node hyperplasia ,cyclophosphamide ,fatigue ,pathology ,erythrocyte sedimentation rate ,Lymph Nodes - Abstract
Castleman disease (CD) is a rare disease also known as angiofollicular lymph node hyperplasia. The two main histological subtypes are the hyaline vascular and plasma cell variants. It is further classified as unicentric CD (UCD) or multicentric CD (MCD) according to the anatomical distribution of the disease and the number of lymph nodes involved. The aim of this multicenter study was to evaluate all cases of CD identified to date in Turkey to set up a national registry to improve the early recognition, treatment, and follow-up of CD.Both adult (n=130) and pediatric (n=10) patients with lymph node or involved field biopsy results reported as CD were included in the study. Patients’ demographic information, clinical and laboratory characteristics, imaging study results, treatment strategies, and clinical outcomes were evaluated retrospectively.A total of 140 patients (69 male and 71 female) with a diagnosis of UCD (n=73) or MCD (n=67) were included. The mean age was 39 years in the UCD group and 47 years in the MCD group. Female patients were more common in the UCD group. The most common histological subtype was hyaline vascular for both UCD and MCD patients. Asymptomatic patients were more common in the UCD group. Anemia, elevations of acute phase reactants, and hypoalbuminemia were more common in the MCD group. The most commonly used treatment strategies for UCD were surgical excision, rituximab, and radiotherapy, respectively. All UCD patients were alive at a median of 19.5 months of follow-up. The most commonly used treatment strategies for MCD were methyl prednisolone, R-CHOP, R-CVP, and rituximab. Thirteen MCD patients had died at a median of 34 months of follow-up.This study is important in presenting the patient characteristics and treatment strategies for CD from Turkey, with the potential of increasing awareness about CD. Treatment data may help in making decisions, particularly in countries that do not have access to siltuximab. However, larger prospective studies are needed to make definitive conclusions.Anjiyofolliküler lenf nodu hiperplazisi olarak da bilinen Castleman hastalığı (CH), nadir bir hastalık olup başlıca hiyalin vasküler ve plazma hücreli olmak üzere 2 histolojik alt tipi vardır. Hastalığın anatomik yayılımı ve tutulan lenf nodu bölgelerinin sayısına göre unisentrik (UCH) ya da multisentrik (MCH) olarak sınıflandırılır. Bu çok merkezli çalışmanın amacı bugüne kadar Türkiye’de tanımlanan tüm CH olgularını tanımlamak, ulusal bir veri tabanı oluşturarak CH’de erken tanı, tedavi ve takip sürecine katkı sağlamaktır.Çalışmaya lenf nodu ya da tutulan alandan yapılmış biyopsi sonucu CH olarak rapor edilen hem erişkin (n=130) hem de pediyatrik (n=10) hastalar dahil edildi. Hastaların demografik bilgileri, klinik ve laboratuvar özellikleri, görüntüleme bulguları, aldıkları tedaviler ve tedavi sonuçları geriye dönük olarak değerlendirildi.Dahil edilen 140 hastanın 69’u kadın, 71’i erkekti. Yetmiş üç hasta UCH, 67 hasta MCH olarak sınıflandırılmıştı. Yaş ortalaması UCH’de 39, MCH’de 47 yıl idi. Kadın hastalar UCH’de daha fazlaydı. Hem UCH hem de MCH için en sık histolojik alt tip hiyalin vaskülerdi. Asemptomatik hastalar UCH’de daha fazlaydı. Anemi, akut faz reaktanı yüksekliği ve hipoalbuminemi MCH’de daha sıktı. UCH’de en sık uygulanan tedaviler sırasıyla cerrahi eksizyon, rituksimab ve radyoterapiydi. Median 19,5 aylık takipte tüm UCH’li hastalar hayattaydı. MCH’de 1. basamak tedaviler metil prednizolon, R-CHOP, R-CVP ve rituksimab idi. Median 34 aylık takipte 13 MCH’li hasta kaybedilmişti.Çalışmamız Türkiye’deki CH hastalarının özellikleri ve tedavi yaklaşımlarını yansıtması açısından önemli olup hastalıkla ilgili farkındalığın arttırılması potansiyeline sahiptir. Tedavi verileri özellikle ülkemizde olduğu gibi siltuksimaba ulaşımı zor olan ülkelerde tedavi seçimi konusunda fikir verebilir. Kesin sonuçlar çıkarmak için büyük ölçekli prospektif çalışmalara ihtiyaç vardır.
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- 2022
5. Idarubicin Versus Daunorubicin Versus Mitoxantrone for Induction Chemotherapy in Acute Myeloid Leukemia: Patient Registration Study of Turkish Society of Hematology-Acute Myeloid Leukemia Working Group
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Pinar, Ibrahim Ethem, Celik, Serhat, Polat, Merve Gokcen, Karatas, Aylin Fatma, Dogan, Ali, Iltar, Utku, Cengiz Seval, Guldane, Malkan, Umit Yavuz, Ince, Idris, Yenihayat, Emel Merve, Akdeniz, Aydan, Kacmaz, Murat, Erdem, Ramazan, Afacan Ozturk, Hacer Berna, Kirkizlar, Hakki Onur, Korkmaz Akat, Gulten, Aykas, Fatma, Mehtap, Ozgur, Deveci, Burak, Sevindik, Omur Gokmen, Can, Ferda, Ozbalci, Demircan, Bulbul, Hale, Durusoy, Salih Sertac, Atas, Unal, Keklik, Muzaffer, Toprak, Selami Kocak, Goker, Hakan, Demirkan, Fatih, Ozkalemkas, Fahir, Alacacioglu, Inci, and Karakus, Volkan
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- 2023
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6. Prospective Real-World Outcomes of Acute Myeloid Leukemia
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Karakus, Volkan, Iltar, Utku, Yenihayat, Emel Merve, Polat, Merve Gokcan, Celik, Serhat, Malkan, Umit Yavuz, Cengiz Seval, Guldane, Dogan, Ali, Akdeniz, Aydan, Pinar, Ibrahim Ethem, Ozdalci, Demircan, Ince, Idris, Erdem, Ramazan, Mehtap, Ozgur, Kirkizlar, Hakki Onur, Kacmaz, Murat, Deveci, Burak, Aykas, Fatma, Korkmaz Akat, Gulten, Yigit Kaya, Sureyya, Afacan Ozturk, Hacer Berna, Sevindik, Omur, Can, Ferda, Cekdemir, Demet, Aslan, Ceyda, Bulbul, Hale, Guven, Zeynep Tugba, Maral, Senem, Durusoy, Salih Sertac, Demirkan, Fatih, Goker, Hakan, Ozkalemkas, Fahir, Keklik, Muzaffer, Toprak, Selami Kocak, Erdogan Yucel, Elcin, Atas, Unal, and Alacacioglu, Inci
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- 2023
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7. THE IMPORTANCE OF TARGETED NEXT-GENERATION SEQUENCING USAGE IN CYTOGENETICALLY NORMAL MYELOID MALIGNANCIES
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Atli, Emine, primary, Gurkan, Hakan, additional, Atli, Engin, additional, Kirkizlar, Hakki Onur, additional, Yalcintepe, Sinem, additional, Demir, Selma, additional, Demirci, Ufuk, additional, Eker, Damla, additional, Mail, Cisem, additional, Kalkan, Rasime, additional, and Demir, Ahmet Muzaffer, additional
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- 2020
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8. Sarcopenia in Hodgkin’s lymphoma evaluated with 18-FDG PET/CT, focus on age, performance, and treatment
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Bas, Volkan, primary, Umit, Elif Gulsum, additional, Korkmaz, Ulku, additional, Baysal, Mehmet, additional, Karaman Gulsaran, Sedanur, additional, Demirci, Ufuk, additional, Kirkizlar, Hakki Onur, additional, Durmus Altun, Gulay, additional, and Demir, Ahmet Muzafer, additional
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- 2020
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9. Can We Use Targeted Next-Generation Sequencing an Alternative Method to the Conventional Tests in Haematological Malignancies?
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Atli, Emine Ikbal, primary, Gurkan, Hakan, additional, Atli, Engin, additional, Kirkizlar, Hakki Onur, additional, Yalcintepe, Sinem, additional, Demir, Selma, additional, Demirci, Ufuk, additional, Eker, Damla, additional, Mail, Cisem, additional, Kalkan, Rasime, additional, and Demir, Ahmet Muzaffer, additional
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- 2020
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10. P-125: An interim analysis of the Turkish Myeloma Registry among patients who have received up to two lines of therapy
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Sevindik, Omur Gokmen, Özkurt, Zübeyde Nur, Boğa, Can, Besisik, Sevgi Kalayoglu, Ipek, Yıldız, Gedük, Ayfer, Harmandalı, Aybüke, Salihoğlu, Ayşe, Şahin, Handan Haydaroğlu, Sönmez, Mehmet, Vural, Filiz, Akay, Olga Meltem, Yüksel, Meltem Kurt, Maral, Senem, Ekinci, Ömer, Kırkızlar, Hakkı Onur, Tekinalp, Atakan, Demir, Nazlı, Merter, Mustafa, Saydam, Güray, Alacacioğlu, inci, Yeğin, Zeynep Arzu, Kasar, Mutlu, Mastanzade, Metban, and Özsan, Güner Hayri
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- 2021
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11. Retrospective Evaluation of Patients with Hairy Cell Leukemia: A Decade Experience at a Single Center
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Baysal, Mehmet, primary, bas, volkan, additional, karaman gülsaran, sedanur, additional, OZDOVER, ALİ CANER, additional, Umit, Elif, additional, Kirkizlar, Hakki Onur, additional, Oz Puyan, Fulya, additional, and Demir, Ahmet Muzaffer, additional
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- 2019
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12. The Importance of Targeted Next-Generation Sequencing Usage in Cytogenetically Normal Myeloid Malignancies.
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Atli, Emine Ikbal, Gurkan, Hakan, Atli, Engin, Kirkizlar, Hakki Onur, Yalcintepe, Sinem, Demir, Selma, Demirci, Ufuk, Eker, Damla, Mail, Cisem, Kalkan, Rasime, and Demir, Ahmet Muzaffer
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NUCLEOTIDE sequencing ,MEDICAL genetics ,GENE fusion ,GENETIC testing ,TURNAROUND time - Abstract
Advanced diagnostic methods give an advantage for the identification of abnormalities in myeloid malignancies. Various researchers have shown the potential importance of genetic tests before the disease's onset and in remission. Large testing panels prevent false-negative results in myeloid malignancies. However, the critical question is how the results of conventional cytogenetic and molecular cytogenetic techniques can be merged with NGS technologies. In this paper, we drew an algorithm for the evaluation of myeloid malignancies. To evaluate genetic abnormalities, we performed cytogenetics, molecular cytogenetics, and NGS testing in myeloid malignancies. In this study, we analyzed 100 patients admitted to the Medical Genetics Laboratory with different myeloid malignancies. We highlighted the possible diagnostic algorithm for cytogenetically normal cases. We applied NGS 141 gene panel for cytogenetically normal patients, and we detected two or more pathogenic variations in 61 out of 100 patients (61%). NGS's pathogenic variation detection rate varies in disease groups: they were present in 85% of A.M.L. and 23% of M.D.S. Here, we identified 24 novel variations out of total pathogenic variations in myeloid malignancies. A total of 18 novel variations were identified in A.M.L., and 6 novel variations were identified in M.D.S. Despite long turnaround times, conventional techniques are still a golden standard for myeloid malignancies but sometimes cryptic gene fusions or complex abnormalities cannot be easily identified by conventional techniques. In these conditions, advanced technologies like NGS are highly recommended. [ABSTRACT FROM AUTHOR]
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- 2021
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13. Economic analysis of oral posaconazole prophylaxis in acute myeloid leukemia during remission induction in Turkey.
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Umit, Elif Gulsum, Baysal, Mehmet, Kirkizlar, Hakki Onur, and Demir, Ahmet Muzaffer
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ACUTE myeloid leukemia ,MYCOSES ,HOSPITAL care ,EPIDEMIOLOGY ,PATIENTS - Abstract
OBJECTIVE: Invasive fungal infections (IFI) are important and trending causes of mortality in patients with acute leukemia, especially during the remission induction. METHODS: In this study, 225 patients who were diagnosed with acute myeloid leukemia (AML) and undergoing intensive treatment for remission induction were enrolled in a retrospective manner. RESULTS: Within the whole group, which consisted of 225 patients, 90 patients received prophylactic antifungal treatment (PAT) (40%), while 135 patients did not (60%) receive. The mean cost of hospitalization was 9.151,6 (2.872,6-20.483,3) US dollars. Gender distribution and mean ages of groups were similar. One hundred fourteen patients not on PAT (84.4%) and five patients on PAT (5.5%) received intravenous antifungal treatment. Thirty-two of the patients who were not on PAT (23.7%) and 11 of the patients on PAT died during remission induction (12.22%). The mean day of the hospitalization was 22.61 days for the patients on PAT and 33.89 days for the patients who were not on PAT. In patients on PAT, the mean number of transfused platelet units was six (0-9), while 12.51 (4-43) units for patients who were not on PAT. CONCLUSION: In our study, the oral suspension form of posaconazole was observed to be cost-effective to prevent IFI with a significant decrease in mortality during remission induction treatment. [ABSTRACT FROM AUTHOR]
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- 2020
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14. Kronik miyeloid lösemi olgularımızın geriye dönük değerlendirilmesi: Tek merkez deneyimi
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Kirkizlar, Hakki Onur, Demir, Ahmet Muzaffer, and İç Hastalıkları Anabilim Dalı
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Treatment ,Retrospective studies ,Leukemia-myelogenous-chronic-BCR-ABL positive ,Hematoloji ,Hematology ,Prognosis - Abstract
Kronik miyeloid lösemi, miyeloid öncül hücrelerin klonal aşırı çoğalması ile tanımlanan bir hemopoietik kök hücre hastalığı olup, kronik miyeloproliferatif neoplazmlar arasında sınıflandırılmaktadır. Kronik miyeloid lösemi, erişkin lösemilerin yaklaşık %15'ini oluştururken, yıllık insidansı yaklaşık 1,6/100.000'dir. Tanısı sırasında ortalama yaşın 65 olduğu saptanmıştır.Bu çalışmada amacımız kronik miyeloid lösemi tanısı ile Trakya Üniversitesi Tıp Fakültesi Hematoloji Bilim Dalı klinik ve polikliniğinden izlenen hastalar ile ilgili merkezimizin sonuçlarını değerlendirmek ve bu sonuçları literatür verileri ile karşılaştırmaktır.Toplamda kronik miyeloid lösemi tanısı ile tedavisi almakta olan 57 hasta çalışmaya dahil edildi. Hastalar demografik, klinik özelliklerine göre değerlendirildi ve Dünya Sağlık Örgütü ölçütlerine göre evrelendirmeleri ile birlikte Sokal, Hasford ve Eutos risk skorlamaları yapıldı. Hematolojik, sitogenetik ve moleküler yanıtları Avrupa Lösemi Ağı ölçütlerine göre değerlendirildi. Hastaların tedavilere yanıtları, bu yanıtlarda farklılık yaratabilecek alt grupları ve risk faktörleri, sağ kalım analizleri ve kronik miyeloid lösemi konusunda merkezimizin tecrübesinin değerlendirildi.Hastaların demografik ve klinik verileri diğer çalışmalara benzer olduğu saptandı. Olaysız sağ kalımda sitogenetik yanıtın en önemli belirteç olduğu ve istatistiksel anlamlı farklılıklar yarattığı izlendi. Risk gruplarının da sağ kalım üzerinde etkili olduğu gözlendi. tirozin kinaz inhibitörü sonrası tedavide geçmişe göre büyük başarı sağlanmasına rağmen uzun dönemli takiplerde hastaların bir kısmında imatinib altında yanıt alınamamakta ya da tedavi altında yanıt kaybı geliştiği izlendi ve bazı hastalarda ikinci kuşak tirozin kinaz inhibitörü kullanmak (bizim çalışmamızda %35) gerekti.Bu nedenle hastaların yanıt kaybı olabilecek olanları, yüksek riskli olanlarını önceden ayırt edebilecek yeni yaklaşımlara ihtiyaç vardır. Bir grup hastada tedaviye karşı direnç gelişebilir. Günümüzde artık birinci basamak tedavide yer almayan allogeneik hematopoetik kök hücre nakli bu tip hastalarda özellikle T315I pozitif olanlarda tedavi seçenekleri içerisinde yer almalıdır. Chronic myeloid leukemia is a hemapoetic stem cell disorder characterized with clonal proliferation of myleoid precursor cells. Chronic myeloid leukemia has a annual incidence of 1,6 cases per 100.000 population and approximately %15 of the adult leukemias. Average age of diagnosis is 65 years.In this study we aim to evaluate the patients with chronic myeloid leukemia followed from our institute and compare the characteristics and outcomes with literature data. We included 57 patients to this study. All the patients evaluated due to demografical and clinical features. Risk assesment and staging applied with World Health Organization criteria and Sokali Hasford and Eutos risk scoring system. We determined hematological, cyotgenetic and moleculer response according to European Leukemia Network criteria. We evaluated the subgroups, risk factors, survival analysis and our experience in chronic myeloid leukemia.Our demographical and clinical data were similar with other studies. We described cytogenetic response as the most effective indicator in event free survival and there was statistically difference. Since the usage of tyrosine kinase inhibitor, we obtained very high rates of responses and over all survivals according to pre tyrosine kinase inhibitor era. Altough these succesful results, some of the patients could not have response or lost the obtained response by long term follow up. Due to this, we have to start second generation tyrosine kinase inhibitor therapies (%35 of patients in our study).We need new definations and monitorisation tools for defining patients who can loose response or high risk patients. Some of the patients can be resistant to all therapies. Allogeneic stem cell transplantation is no longer the first line treatment option since tyrosine kinase inhibitor era but can be an option for the resistant patients especially with mutation such as T315I. 65
- Published
- 2012
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