Publications by authors named "İrfan Yavasoglu"

Objective: This study aimed to investigate the clinical manifestations, treatment patterns, and clinical outcomes of patients with immune thrombotic thrombocytopenic purpura (iTTP) across Türkiye via an interim analysis of the Turkish iTTP Registry.

Materials And Methods: A total of 215 patients with iTTP (median age at diagnosis: 41 years; 58.6% female) diagnosed between 2001 and 2023 were retrospectively analyzed in the interim analysis of a prospective non-interventional observational multicenter iTTP registry study (ClinicalTrials.

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Tuberculosis (TB) is rare following hematopoietic cell transplantation (HCT). In this multinational retrospective study, we report the frequency, characteristics, and outcome of TB following HCT performed during 2000-2019. Fifty-two patients (35 (67%) males, 15 (29%) children) from 24 centers developed TB following allogeneic (n = 47) or autologous (n = 5) HCT; with the relative frequency of 0.

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Objective: In this study, we aimed to obtain real-life data on the use of antimyeloma agents, which significantly increase overall survival (OS) in multiple myeloma (MM) patients, in primary plasma cell leukemia (pPCL) patients with poor prognosis.

Materials And Methods: Data from 53 patients who were diagnosed with pPCL between 2011 and 2020 and who used at least one proteasome inhibitor (PI) and/or immunomodulatory (IMID) agent were analyzed retrospectively. Depending on the year of the pPCL diagnosis, 20% leukocytes or ≥2x10/L plasma cells in the peripheral blood was used as a diagnostic criterion.

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Objective: 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 Türkiye in the event of such special considerations.

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Objective: 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 Türkiye on certain aspects of both first-line and second-line management of patients with pITP.

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Malignant diseases occurring in elderly patients follow a different course from younger patients and show different genetic structures. Therefore, in this retrospective study, the somatic gene variant profile and fusion gene profiles of elderly and young acute leukemia patients were determined to draw attention to the existing genetic difference, and the results were compared. In this study, the records of 204 acute leukemia patients aged 18+ who were referred to the Molecular Pathology Laboratory from the Hematology Clinic between 2018 and 2022 were reviewed retrospectively.

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We aimed to investigate the association between follicular T helper cells (Tfh) and disease severity in systemic sclerosis (SSc), a chronic connective tissue disease characterized by progressive fibrosis. While Tfh cells have been extensively studied in other autoimmune diseases, their role in SSc remains poorly understood. A cohort of 50 SSc patients, diagnosed based on the ACR/EULAR 2013 classification criteria, was included in the study.

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Article Synopsis
  • Immune thrombocytopenia (ITP) leads to low platelet counts due to increased destruction and is classified based on the time post-diagnosis: newly diagnosed, persistent, and chronic.
  • The TAPER trial studied eltrombopag as a treatment option for adults with ITP who didn't respond to corticosteroids, finding that about 30.5% of participants achieved a sustained response off-treatment after a year.
  • Eltrombopag improved platelet counts and quality of life within a few months, with a median duration of sustained response extending to about 22 months in later follow-ups, while maintaining a safety profile consistent with prior studies.
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Article Synopsis
  • Glofitamab is a bi-specific antibody used to treat relapsed or refractory B-cell lymphoma, showing potential in a phase II trial, but real-world data is limited.
  • A retrospective study in Turkey analyzed 43 DLBCL patients receiving glofitamab, revealing median overall survival of 8.8 months and a 1-year progression-free survival rate of 83%.
  • While the treatment had promising effectiveness, toxicity was a significant concern, with deaths linked to disease progression and treatment-related side effects like cytokine release syndrome.
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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.

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Objective: Diffuse large B cell lymphoma (DLBCL) is the most common type of non-Hodgkin lymphoma. Although it is a clinically and biologically heterogeneous disease, it is usually treated with R-CHOP chemotherapy. Here, we aimed to investigate gene expression frequency with next-generation sequencing (NGS) and the relation of gene mutations with remission and relapse status in patients with DLBCLs.

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CITE was a prospective, noninterventional study in adult patients with chronic immune thrombocytopenia treated with eltrombopag under routine clinical care in Asia-Pacific, the Middle East, and Turkey. Data to assess eltrombopag usage, compliance, and outcomes were collected from May 2017 to December 2020. Platelet response was defined as platelet count ≥50 × 103/μL in the absence of rescue medications and splenectomy.

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Background: Platelets have an effect on the hemostatic defense of the lung. Immature platelet fractions (iPF) reflects the number of young platelets containing ribonucleic acid in the circulation and real-time production. Information about their roles in rheumatic diseases is limited and there are no studies on iPF in RA with interstitial lung disease (ILD).

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Objective: High-dose ascorbic acid leads to the formation of highly reactive oxygen species due to the pro-oxidant effect, resulting in cell death; therefore, used as an additive treatment in several malignancies. We present the results obtained by administration of pharmacological dose of ascorbic acid to conventional chemotherapy in relapsed refractory multiple myeloma patients.

Materials-methods: Intravenous ascorbic acid at a pharmacologic dose of 15 gram/week was added to the chemotherapy regimen of relapsed refractory multiple myeloma patients, who received carfilzomib-lenalidomide-dexamethasone treatment and did not respond after the second cycle.

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Evans syndrome is a rare condition characterized by simultaneous or sequential development of autoimmune hemolytic anemia and immune thrombocytopenia (and/or immune neutropenia). Coronavirus disease 2019 (COVID-19) may cause various hematologic conditions, such as coagulation abnormalities (e.g.

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We retrospectively evaluated the use of gemtuzumab ozogamicin (GO) in relapsed refractory (R/R) acute myeloid leukemia (AML) patients. Twenty-one CD33 positive R/R AML patients who received GO as a single agent in 4 hematology centers were included in this study. The median age was 59, and the median ECOG performance score was 2.

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The diabetic fot/ulcer is the cause of high morbidity and mortality in patients with diabetes mellitus (DM). Generally, medical treatment of diabetic foot/ulcer is ineffective and stem cell implantation is an important option in the treatment. Here, we present a 69 years old man admitted to hospital due to a 3 × 4 cm wound in the plantar surface of left foot.

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Synopsis of recent research by authors named "İrfan Yavasoglu"

  • - İrfan Yavasoglu's recent research focuses on various hematological conditions, particularly exploring survival outcomes and management strategies for disorders such as primary plasma cell leukemia and immune thrombocytopenia, utilizing both real-life data and consensus recommendations to improve patient care.
  • - Findings from his studies on primary plasma cell leukemia indicate that the use of proteasome inhibitors and immunomodulatory agents can significantly enhance overall survival rates, while the latest consensus statements provide valuable guidelines for managing complex cases of primary immune thrombocytopenia in Turkey.
  • - Yavasoglu also investigates the genetic profiles of acute leukemia patients across different age groups, as well as the pathophysiological aspects of systemic sclerosis, highlighting the role of peripheral T follicular helper cells in disease severity, indicating a multifaceted approach to understanding and treating hematological malignancies and autoimmune conditions.