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Öğe ASSESSMENT OF CHARACTERISTICS AND TREATMENT PATTERNS OF ADULT PATIENTS WITH ACQUIRED APLASTIC ANAEMIA IN TURKIYE (PLANE-TR STUDY)(Springernature, 2025) Gunduz, Eren; Ulas, Turgay; Ozkalemkas, Fahir; Toprak, Selami Kocak; Karakulak, Elifcan Aladag; Ar, Muhlis Cem; Gulbas, Zafer[No abstract available]Öğe Assessment of characteristics and treatment patterns of adult patients with acquired aplastic anemia in Turkiye (PLANE-TR)(Springer, 2026) Gunduz, Eren; Ulas, Turgay; Ozkalemkas, Fahir; Toprak, Selami Kocak; Karakulak, Elifcan Aladag; Ar, Muhlis Cem; Gulbas, ZaferAcquired aplastic anemia (AA) is a rare blood disorder causing hypocellular bone marrow due to immune damage to hematopoietic stem cells, leading to low blood cell counts. This study investigates the demographics, treatment patterns, and clinical outcomes of AA in Turkiye. In this non-interventional, retrospective descriptive study, data of 274 patients (Female/Male: 4/5) diagnosed with AA between September 1, 2011, and September 1, 2021, were collected from 16 centers. Severe and very severe AA was diagnosed in 72% and 27.7% of patients, respectively. The mean time from diagnosis to first treatment was 119 +/- 287 days, while time to hematopoietic stem cell transplantation (HSCT) was 212 +/- 321 days, and to Anti-Thymocyte Globulin (ATG) was 87 +/- 242.5 days. The mean time to response after first-line and second-line treatment was 172.9 +/- 264.6 days and 191.9 +/- 211.9 days, respectively. The mean overall survival of patients with AA was 3.56 +/- 3.12 years, with a 5-year overall survival rate of 72.6%. HSCT and other initial treatments led to full or partial remission for most patients, improving survival rates for over half of them. The study observed comparable patterns to previous studies, providing vital insights into Turkiye's acquired AA treatment landscape.Öğe The impact of transfusion burden and comorbidities on the prognosis of patients with myelodysplastic syndromes(Pergamon-Elsevier Science Ltd, 2020) Sarici, Ahmet; Ar, Muhlis Cem; Yokus, Osman; Ongoren, Seniz; Ayer, Mesut; Altindal, Sermin; Koker, Hilal TanPurpose: Early comorbidity detection has been reported to be associated with treatment-related outcomes in several diseases. Two main goals of the present study were to investigate both the impact of comorbidities and transfusion frequencies on the survival and quality of life of patients with myelodysplastic syndromes (MDS). Methods: One hundred and four MDS patients with a median International Prognostic Scoring System (IPSS) score of 0.5 (range: 0-3) were included in the study. Almost half of the patients had more than one comorbidity. Results: Median short form health surveys (SF)-36 mental and physical scores were 42.1 (range: 20.6-66.1) and 38.7 (range: 18-59.7), respectively. Mean scores of the Eastern Cooperative Oncology Group (ECOG) performance scales at diagnosis and during recruitment were 1.0 (1.4 +/- 1.0) and 2.0 (1.8 +/- 1.1), respectively. The mean Charlson Comorbidity Index (CCI) score was 1.0 (1.4 +/- 1.5). In the model that was constructed using variables with a p value < 0.100 in the univariate analysis, factors that predicted death were refractory anemia with excess blasts (RAEB) and ECOG scores at recruitment. When ECOG was removed from the model, RAEB and CCI at diagnosis moved to the forefront as mortality predictors. Conclusion: This study demonstrated that both CCI and ECOG performance status had an impact on survival in MDS patients who had low IPSS scores. ECOG stood out as a better and more practical predictor of survival than CCI, especially after considering its (ECOG) ease of use.Öğe Management of Adult Primary Immune Thrombocytopenia: DelphiBased Consensus Recommendations(Galenos Publ House, 2024) Demir, Ahmet Muzaffer; Umit, Elif Gulsum; Ar, Muhlis Cem; Ayer, Mesut; Ayli, Meltem; Karakus, Volkan; Kaya, EminObjective: Primary immune thrombocytopenia (pITP) is an acquired autoimmune disorder related to the increased destruction and/or impaired production of platelets. Its diagnosis and management are challenging and require expertise and the interpretation of international consensus reports and guidelines with national variations in availability. We aimed to assess the agreement of hematologists in T & uuml;rkiye on certain aspects of both first -line and second -line management of patients with pITP. Materials and Methods: Applying a modified Delphi method, the Turkish National ITP Working Group (14 steering committee members), founded under the auspices of the Turkish Society of Hematology, developed a 21 -item questionnaire consisting of statements regarding the first -line and second -line treatment of pITP. A total of 107 adult hematologists working in either university or state hospitals voted for their agreement or disagreement with the statements in two consecutive rounds. Results: The participants reached consensus on the use of corticosteroids as first -line treatment and with limited duration. Methylprednisolone was the corticosteroid of choice rather than dexamethasone. Use of intravenous immunoglobulin was not preferred for patients without bleeding. It was also agreed that thrombopoietin receptor antagonists (TPO-RAs) or rituximab should be recommended as second -line treatment and that splenectomy could be considered 12-24 months after diagnosis in patients with chronic pITP. Conclusion: The optimization of the dose and duration of TPO-RAs in addition to corticosteroids is necessary to improve the management of patients with pITP.Öğe Management of Primary Immune Thrombocytopenia: Turkish Modified Delphi-Based Consensus Statement for Special Considerations(Galenos Publ House, 2024) Umit, Elif Gulsum; Demir, Ahmet Muzaffer; Ar, Muhlis Cem; Ayer, Mesut; Ayli, Meltem; Karakus, Volkan; Kaya, EminObjective: Primary immune thrombocytopenia (ITP) is an acquired disorder of platelets with a complex and unclear mechanism of increased immune destruction or impaired production of platelets. While the management of ITP is evolving, there is still a need for guidance, particularly in certain circumstances such as pregnancy, emergencies, or patients requiring co-medications. We aimed to determine the tendencies of hematologists in T & uuml;rkiye in the event of such special considerations. Materials and Methods: Applying a modified Delphi method, the Turkish National ITP Working Group, founded under the auspices of the Turkish Society of Hematology, developed a questionnaire consisting of statements regarding pregnancy, emergencies, and circumstances requiring co-treatment with antiaggregants or anticoagulants. A total of 107 hematologists working in university or state hospitals voted for their agreement or disagreement with the statements for two sequential rounds. Results: The participating hematologists reached an agreement on starting treatment for pregnant patients with platelets of less than 30x109/L 9 /L and delivery either vaginally or by cesarean section being safe at platelet counts above 50x109/L. 9 /L. For emergencies and the rescue management of ITP, the panel agreed against the use of high-dose corticosteroids alone, preferring combinations with transfusions or intravenous immunoglobulin. For patients who require interventions, platelet counts of >50x109/L 9 /L were regarded as safe for low-risk procedures as well as co-treatment with antiplatelets or anticoagulants. Conclusion: As the National ITP Study Group, we have observed the need to increase the practice guidance regarding patients with primary ITP requiring additional treatments including invasive interventions and co-treatments for coagulation. Decisions on the management of ITP during pregnancy should be individualized. There is a lack of consensus on the thresholds of platelet counts as well as co-morbidities and co-medications. This lack of consensus may be due to variations in practices.Öğe Results of multicenter registry for patients with inherited factor VII deficiency in Turkey(Taylor & Francis Ltd, 2022) Akdeniz, Aydan; Unuvar, Aysegul; Ar, Muhlis Cem; Pekpak, Esra; Akyay, Arzu; Mehtap, Ozgur; Karadag, Fatma KeklikIntroduction: Inherited factor VII (FVII) deficiency (FVIID) is the most common of inherited rare bleeding disorders. Other determinants of clinical severity apart from FVII level (FVIIL) include genetic and environmental factors. We aimed to identify the cut-off FVIILs for general and severe bleedings in patients with FVIID by using an online national registry system including clinical, laboratory, and demographic characteristics of patients. Methods: Demographic, clinical, and laboratory data of patients with FVIID extracted from the national database, constituted by the Turkish Society of Hematology, were examined. Bleeding phenotypes, general characteristics, and laboratory features were assessed in terms of FVIILs. Bleeding rates and prophylaxis during special procedures/interventions were also recorded. Results: Data from 197 patients showed that 46.2% of patients had FVIIL< 10%. Most bleeds were of mucosal origin (67.7%), and severe bleeds tended to occur in younger patients (median age: 15 (IQR:6-29)). Cut-off FVIILs for all and severe bleeds were 16.5% and 7.5%, respectively. The major reason for long-term prophylaxis was observed as central nervous system bleeding (80%). Conclusion: Our data are consistent with most of the published literature in terms of cut-off FVIIL for bleeding, as well as reasons for prophylaxis, showing both an increased severity of bleeding and younger age at diagnosis with decreasing FVIIL. However, in order to offer a classification similar to that in Hemophilia A or B, data of a larger cohort with information about environmental and genetic factors are required.
