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    Ibrutinib As a Promising Treatment for Pulmonary Complications Due to Refractory Chronic Graft Versus Host Disease
    (Elsevier Science Inc, 2020) Ilhan, Osman; Seval, Guldane Cengiz; Uzay, Ant; Kaya, Emin; Ozturk, Zubeyde Nur; Deveci, Burak; Yavasoglu, Irfan
    [Abstract Not Available]
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    Incidence and risk factors for hepatic sinusoidal obstruction syndrome after allogeneic hematopoietic stem cell transplantation: A retrospective multicenter study of Turkish hematology research and education group (ThREG)
    (Pergamon-Elsevier Science Ltd, 2020) Soyer, Nur; Gunduz, Mehmet; Tekgunduz, Emre; Deveci, Burak; Ozdogu, Hakan; Sahin, Handan Haydaroglu; Turak, Esra Ermis
    Hepatic sinusoidal obstruction syndrome (HSOS) is a potentially life-threatening complication of allogeneic hematopoietic stem cell transplantation (allo-HSCT). We retrospectively evaluated the incidence, risk factors, treatment and survival for HSOS after allo-HSCT in Turkey. We also reported our experience of defibrotide (DF) for HSOS prophylaxis in high-risk (HR) patients. Across Turkey, 1153 patients from 10 centers were enrolled in the study. We evaluated the medical records of patients who were treated with allo-SCT between January 2012 and December 2015. The study included 1153 patients (687 males/466 females) with median age of 38 (15 - 71) years. The incidence of HSOS was 7.5 % (n = 86). The incidences of HSOS in the HR/DF +, HR/DF- and standard risk (SR) group were 8%, 66.7 % and 6.2 %, respectively. The rate of HSOS development was not statistically different between HR/DF + and SR group (p = 0.237). HSOS prophylaxis (defibrotide) was significantly decreased HSOS-related mortality (p = 0.004). The incidence of HSOS was found similar to literature in this large Turkish cohort. Defibrotide prophylaxis appears to be associated with low incidence of HSOS development and reduced HSOS-related mortality. Although these results are promising, future studies are needed to support the efficacy of defibrotide prophylaxis in patients with risk of HSOS.
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    Incidence and risk factors for hepatic sinusoidal obstruction syndrome after allogeneic transplantation: Retrospective multicenter study of Turkish hematology research and education group (THREG), updated data
    (Nature Publishing Group, 2019) Soyer, Nur; Gunduz, Mehmet; Tekgunduz, Emre; Deveci, Burak; Ozdogu, Hakan; Sahin, Handan Haydaroglu; Turak, Esra Ermis
    [Abstract Not Available]
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    A Multi-Center Study on the Efficacy of Eltrombopag in Management of Refractory Chronic Immune Thrombocytopenia: A Real-Life Experience
    (2019) Çekdemir, Demet; Güvenç, Serkan; Özdemirkıran, Füsun; Eser, Ali; Şahin Haydaroğlu, Handan; Turak Ermiş, Esra; Esen, Ramazan; Cömert, Melda; Sadri, Sevil; Aslaner, Müzeyyen; Uncu Ulu, Bahar; Karakuş, Abdullah; Bapur Selim, Derya; Alacacıoğlu, İnci; Aydın, Demet; Tekinalp, Atakan; Namdaroğlu, Sinem; Ceran, Funda; Tarkun, Pınar; Kiper, Demet; Çetiner, Mustafa; Yenerel, Mustafa; Demir, Muzaffer Ahmet; Yılmaz, Güven; Terzi, Hatice; Atilla, Erden; Malkan, Yavuz Ümit; Acar, Kadir; Öztürk, Erman; Tombak, Anıl; Sunu, Cenk; Salim, Ozan; Alayvaz, Nevin; Sayan, Özkan; Ozan, Ülkü; Ozan, Mesut; Gökgöz, Zafer; Andıç, Neslihan; Kızılkılıç, Ebru; Noyan, Figen; Özen, Mehmet; Tanrıkulu Pepedil, Funda; Alanoğlu, Güçhan; Özkan, Hasan Atilla; Aslan, Vahap; Çetin, Güven; Akyol Erikçi, Alev; Deveci, Burak; Ersoy Dursun, Fadime; Dermenci, Hasan; Aytan, Pelin; Gündüz, Mehmet; Karakuş, Volkan; Özlü, Can; Demircioğlu, Sinan; Akay Yanar, Olga Meltem; Özatlı, Düzgün
    Abstract: Objective: The aim of the present study was to evaluate the efficacyand safety of eltrombopag, an oral thrombopoietin receptor agonist,in patients with chronic immune thrombocytopenia (ITP).Materials and Methods: A total of 285 chronic ITP patients (187women, 65.6%; 98 men, 34.4%) followed in 55 centers were enrolledin this retrospective cohort. Response to treatment was assessedaccording to platelet count (/mm3) and defined as complete (plateletcount of >100,000/mm3), partial (30,000-100,000/mm3 or doublingof platelet count after treatment), or unresponsive (<30,000/mm3).Clinical findings, descriptive features, response to treatment, and sideeffects were recorded. Correlations between descriptive, clinical, andhematological parameters were analyzed.Results: The median age at diagnosis was 43.9±20.6 (range: 3-95)years and the duration of follow-up was 18.0±6.4 (range: 6-28.2)months. Overall response rate was 86.7% (n=247). Complete andpartial responses were observed in 182 (63.8%) and 65 (22.8%)patients, respectively. Thirty-eight patients (13.4%) did not respondto eltrombopag treatment. For patients above 60 years old (n=68),overall response rate was 89.7% (n=61), and for those above 80 years old (n=12), overall response rate was 83% (n=10). Consideringthrombocyte count before treatment, eltrombopag significantlyincreased platelet count at the 1st, 2nd, 3rd, 4th, and 8th weeks oftreatment. As the time required for partial or complete responseincreased, response to treatment was significantly reduced. The timeto reach the maximum platelet levels after treatment was quitevariable (1-202 weeks). Notably, the higher the maximum plateletcount after eltrombopag treatment, the more likely that side effectswould occur. The most common side effects were headache (21.6%),weakness (13.7%), hepatotoxicity (11.8%), and thrombosis (5.9%).Conclusion: Results of the current study imply that eltrombopag isan effective therapeutic option even in elderly patients with chronicITP. However, patients must be closely monitored for response andside effects during treatment. Since both response and side effectsmay be variable throughout the follow-up period, patients should beevaluated dynamically, especially in terms of thrombotic risk factors.