Browsing by Author "Karakuş V."

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    Efficacy and safety of ruxolitinib in patients with myelofibrosis: A retrospective and multicenter experience in turkey
    (Turkiye Klinikleri, 2021) Soyer N.; Ali R.; Turgut M.; Haznedaroğlu İ.C.; Yilmaz F.; Aydoğdu İ.; Pir A.; Karakuş V.; Özgür G.; Kiş C.; Ceran F.; Ilhan G.; Özkan M.; Aslaner M.; Ince İ.; Yavaşoğlu İ.; Gediz F.; Sönmez M.; Güvenç B.; Özet G.; Kaya E.; Vural F.; Şahin F.; Töbü M.; Durusoy R.; Saydam G.
    Background/aim: The aim of this study is to assess the efficacy and safety of ruxolitinib in patients with myelofibrosis. Materials and methods: From 15 centers, 176 patients (53.4% male, 46.6% female) were retrospectively evaluated. Results: The median age at ruxolitinib initiation was 62 (28–87) and 100 (56.8%) of all were diagnosed as PMF. Constitutional symptoms were observed in 84.7%. The median initiation dose of ruxolitinib was 30 mg (10–40). Dose change was made in 69 (39.2%) patients. Forty seven (35.6%) and 20 (15.2%) of 132 patients had hematological and nonhematological adverse events, respectively. The mean spleen sizes before and after ruxolitinib treatment were 219.67 ± 46.79 mm versus 199.49 ± 40.95 mm, respectively (p < 0.001). There was no correlation between baseline features and subsequent spleen response. Overall survival at 1-year was 89.5% and the median follow up was 10 (1–55) months. We could not show any relationship between survival and reduction in spleen size (p = 0.73). Conclusion: We found ruxolitinib to be safe, well tolerated, and effective in real-life clinical practice in Turkey. Ruxolitinib dose titration can provide better responses in terms of not only clinical benefit but also for long term of ruxolitinib treatment. © TÜBİTAK.
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    Acquired Hemophilia A In Adults: A Multicenter Study from Turkey
    (Springer, 2023) Arslan Davulcu E.; Demirci Z.; Yılmaz U.; Ar M.C.; Teke H.Ü.; Karakuş V.; Çiftçiler R.; Selim C.; Yavaşoğlu İ.; Durusoy S.S.; Okan V.; Akdeniz A.; Yolcu A.; Aydoğdu İ.; Güney T.; Yılmaz A.F.; Şahin F.
    Acquired hemophilia A (AHA) is a rare disease caused by autoantibodies inhibiting factor VIII (FVIII) activity. Although the conditionis usually idiopathic, there may be other underlying diseases. Treatment consists of two steps: treatment of acute bleeding and immunosuppression. In this multicenter study, we aimed to demonstrate the clinical characteristics, management details, and survival of AHA patients in Turkey. Data was collected from eleven centers in Turkey. aPTT, FVIII, FVIII inhibitor, and hemoglobin (HB) levels, mixing test results, and demographics at diagnosis, treatment information, adverse events, bleeding episodes during follow-up, relapses, and outcome were analyzed. Twenty-nine patients were analyzed (58.6% female). No underlying disorder could be detected in 14 patients. The most prevalent etiologies were pregnancy, malignancy and infections. The median FVIII activity and FVIII inhibitor titer at diagnosis were 0.7% (0.0–29.4%) and 32.6 BU (0.6–135.6 BU) respectively. Bleeding was severe in 44.8% of patients. The HB value was significantly lower in patients with severe bleeding. Most of the patients (n = 25, 86.2%) had only one bleeding episode without relapse, three patients (10.3%) had two bleeding episodes, and one patient had more than three bleedings. 21 (75%) patients received hemostatic therapy. The use of recombinant FVIIa was slightly higher than activated prothrombin complex concentrate (15 versus 10 patients). Immunosuppressive treatment was initiated in 26 (93%) patients. Regimens containing steroid, cyclophosphamide, and rituximab in different combinations were the most preferred. The median follow-up period was 13 months (2–156 months). Median overall survival was 154.97 months. Four and six-year survival were 90.9 ± 0.8% and 77.9 ± 14.1% respectively. This is a unique study that investigated the demographic characteristics, treatment approaches, and patient survival of AHA in Turkey. © 2022, The Author(s), under exclusive licence to Indian Society of Hematology and Blood Transfusion.