Publications by authors named "Guldane Cengiz-Seval"

Background: Bortezomib, dexamethasone and cyclophosphamide (VCd) remains a popular regimen, due to its activity and low toxicity, while bortezomib, lenalidomide and dexamethasone (VRd) is widely used in US and Europe; both are combined with anti-CD38 monoclonal antibodies but VCd and VRd have not been compared directly in adequately powered prospective trials.

Aim: We compared the outcomes of 1216 patients treated with VCd (N = 690) or VRd (N = 526) in a real-world setting.

Results: Patients treated with VCd had more often severe renal dysfunction, ISS-3 disease, hypercalcemia, elevated LDH, anemia, thrombocytopenia, poor performance while VRd-treated were older and received less often autologous transplant but more frequently maintenance but the duration of induction was similar.

View Article and Find Full Text PDF

Objectives: We aimed to reveal the incidence of lateonset noninfectious pulmonary complications and bronchiolitis obliterans syndrome and risk factors involved in development.

Materials And Methods: In this cross-sectional study, we retrospectively investigated 745 patients who underwent allogeneic hematopoietic stem cell transplantation in our hospital between January 2000 and December 2020. We evaluated demographic characteristics, comorbidities, and hematopoietic stem cell transplantation characteristics to determine possible risk factors affecting development of lateonset noninfectious pulmonary complications and bronchiolitis obliterans syndrome.

View Article and Find Full Text PDF

Chronic lymphocytic leukemia (CLL) is a chronic lymphoproliferative disorder characterized by monoclonal B cell proliferation. Studies carried out in recent years suggest that extracellular vesicles (EVs) may be a potential biomarker in cancer. Tyro3-Axl-Mertk (TAM) Receptor Tyrosine Kinases (RTKs) and Phosphatidylserine (PS) have crucial roles in macrophage-mediated immune response under normal conditions.

View Article and Find Full Text PDF
Article Synopsis
  • The COVID-19 pandemic has severely affected individuals with hematological malignancies due to their weakened immune systems, resulting in higher mortality rates and severe outcomes.
  • Data from the EPICOVIDEHA registry, which compiles COVID-19 cases from these patients worldwide, was collected from 2020 to 2022, including 8,767 cases from 152 centers across 41 countries.
  • Findings show a significant drop in critical infections and overall mortality rates, but hospitalization (especially in ICU) remains a serious risk factor; vaccination is linked to better survival outcomes, highlighting the need for ongoing monitoring and support for these patients.
View Article and Find Full Text PDF

Patients affected by multiple myeloma (MM) have an increased risk of severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) infection and subsequent coronavirus (20)19 disease (COVID-19)-related death. The changing epidemiological and therapeutic scenarios suggest that there has been an improvement in severity and survival of COVID-19 during the different waves of the pandemic in the general population, but this has not been investigated yet in MM patients. Here we analyzed a large cohort of 1221 patients with MM and confirmed SARS-CoV-2 infection observed between February 2020, and August 2022, in the EPICOVIDEHA registry from 132 centers around the world.

View Article and Find Full Text PDF

Objectives: Elderly patients with hematologic malignancies face the highest risk of severe COVID-19 outcomes. The infection's impact on different age groups remains unstudied in detail.

Methods: We analyzed elderly patients (age groups: 65-70, 71-75, 76-80, and >80 years old) with hematologic malignancies included in the EPICOVIDEHA registry between January 2020 and July 2022.

View Article and Find Full Text PDF

The WAA apheresis registry contains data on more than 140,000 apheresis procedures conducted in 12 different countries. The aim is to give an update of indications, type and number of procedures and adverse events (AEs). MATERIAL AND METHODS: The WAA-registry is used for registration of apheresis procedures and is free of charge.

View Article and Find Full Text PDF

Background: With increased success, ovarian tissue cryopreservation has recently become a standard technique for fertility preservation. However, malignant cell introduction through ovarian tissue transplantation remains a major concern for patients with acute leukemias.

Objective: This study aimed to investigate the safety of performing autologous ovarian tissue transplantation in survivors of acute leukemia.

View Article and Find Full Text PDF

Background: Allogeneic hematopoietic stem cell transplantation is a well-established approach for patients diagnosed with primary myelofibrosis and remains the only potentially curative treatment.

Aims: To present the overall outcome of patients with myelofibrosis treated with allogeneic hematopoietic stem cell transplantation.

Study Design: A retrospective cross-sectional study.

View Article and Find Full Text PDF

Background: Natural killer (NK) cells are known to have cytotoxic effects mediated through killer immunoglobulin-like receptors (KIRs) and their cognate ligands. Role of KIRs in myeloma is yet unresolved.

Patients And Methods: KIR genotypes and ligands of 204 newly diagnosed MM patients are compared with 424 healthy subjects.

View Article and Find Full Text PDF
Article Synopsis
  • * 326 patients were analyzed, showing that COVID-19 severity ranged from mild to critical, with 21% of patients experiencing mild cases and an overall mortality rate of 21%.
  • * Key risk factors for higher mortality included being over 50 years old, having multiple comorbidities, active hematologic disease, and experiencing COVID-19 within a year of transplantation.
View Article and Find Full Text PDF

Background: This study aimed to compare use of original brand-name lenalidomide (Revlimid®) vs. generic equivalent (Rivelime®) in terms of efficacy, safety and survival outcome in patients with relapsed/refractory multiple myeloma (RRMM) PATIENTS AND METHODS: A total of 184 patients RRMM (median age: 62 years, 60.9% were males) who received singlet, doublet or triplet lenalidomide-containing regimens including either Revlimid® (n=74) or Rivelime® (n=110) were included in this study.

View Article and Find Full Text PDF

Background: Eltrombopag has an off-label indication for haematopoietic cell transplantation in patients experiencing delayed thrombocyte recovery and/or thrombocytopaenia.

Aims: To present our centre’s experience of using this agent not only for post- haematopoietic cell transplantation thrombocytopaenia but also for poor graft functioning in the post-haematopoietic cell transplantation setting.

Study Design: Retrospective cross-sectional study.

View Article and Find Full Text PDF

The present systematic review aimed to investigate natural killer (NK) cell ex vivo expansion protocols within the scope of clinical trials targeting hematological cancer and to conduct a meta-analysis to assess the effect of NK cell infusion on survival. Research articles of clinical studies in which cell products produced by ex vivo expansion, consisting of a certain amount of NK cells and infused to patients with hematological cancer, were included in the systematic review. We conducted a proportion analysis with random effects for product purity and viability values.

View Article and Find Full Text PDF
Article Synopsis
  • * The study noted that only 16.2% of the patients were vaccinated with two or more doses prior to COVID-19 diagnosis, and vaccination status was linked to lower mortality rates.
  • * Key risk factors for increased mortality included older age, active malignancy, severe COVID-19 symptoms, and ICU admission, with additional findings showing no significant difference in survival rates between NHL and CLL patients.
View Article and Find Full Text PDF

In 2020, about 600 000 people aged 65 years and older were diagnosed with a haematological malignancy worldwide, and this number will increase to almost 1 million by 2040, with the largest growth taking place in regions with less developed economies. Health-care systems globally are ill-prepared to face this impending increase in the burden of haematological malignancies among older people, and geriatric oncology and haematology are not properly developed in most low-income and middle-income countries, as well as in many community settings in high-income countries. Here, we provide an overview of the status of geriatric haematology in resource-limited settings, with a focus on health-care systems, educational activities, availability of resource-stratified guidelines, development of clinical programmes, and ongoing research initiatives.

View Article and Find Full Text PDF

Steroid-refractory acute graft-versus-host disease (SR-aGVHD) treatment has a low response rate and a high risk of infection in allogeneic hematopoietic stem cell transplantation. The standard approach to be applied in this situation is uncertain. This study aims to evaluate the effectiveness and safety of alpha-1-antitrypsin (AAT).

View Article and Find Full Text PDF

Backround And Aim: The benefit of pre-transplant consolidation in patients with acute lymphoblastic leukemia (ALL) who achieved first complete remission (CR1) has not yet been clearly demonstrated. Here, we aimed to investigate the relationship between the treatments received before transplantation and transplant outcome in Ph-ALL patients who underwent myeloablative allo-HSCT in CR1.

Patients And Methods: A total of 55, 32 (58.

View Article and Find Full Text PDF

Allogeneic hematopoietic stem cell transplantation (AHSCT) is a promising strategy for treatment of heavily pretreated mycosis fungoides/Sezary syndrome (MF/SS). Herein, we aimed to evaluate the outcomes of AHSCT for heavily pretreated patients with MF/SS retrospectively. This analysis included consecutive 19 patients with MF/SS who received 20 AHSCT between 2012-2021 in our transplant center.

View Article and Find Full Text PDF