Publications by authors named "Mesut Ayer"

Aim: Several studies have suggested that cytokine release syndrome (CRS) can be controlled by therapeutic plasma exchange (TPE) treatment. In this study, it was aimed to evaluate the efficacy of TPE treatment in patients who developed life-threatening respiratory failure syndrome (SARS) due to COVID-19 infection.

Methods: In this retrospective, case-control study, patients, who developed SARS, were infected with the COVID-19 virus, and required intensive care unit (ICU) admission were included.

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Purpose: This study aims to assess the impact of polycythemia vera (PV) on retinal and optic nerve head (ONH) vessel density (VD) parameters, macular ganglion cell complex (mGCC) thickness, and retinal nerve fiber layer (RNFL) thickness compared to healthy controls.

Methods: Forty eyes of 20 patients with PV and 40 eyes of 20 age-gender-matched healthy controls underwent comprehensive ophthalmologic assessments and optic coherence tomography angiography (OCTA). RNFL and macular GCC measurements were obtained simultaneously with vascular parameters by AngioVue OCTA using the single-scan protocol.

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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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Objectives: Pleural effusion (PE) is the most frequent pulmonary complication of dasatinib, a tyrosine kinase inhibitor (TKI). Concurrent pericardial effusions have been reported in about one-third of the cases. In this study, we aimed to investigate ascites generation in chronic-phase chronic myeloid leukemia (CML-CP) patients developing PE under dasatinib.

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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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At 22 weeks post-transplantation for HBV-related cirrhosis, an adult woman developed neutropenia which was aggravated by COVID-19 (ANC 0.4 × 10/L). Covid resolution and all "conventional" modifications were ineffective.

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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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The prevalent form of ichthyosis in neutral lipid storage disease (NLSDI) is nonbullous congenital ichthyosiform erythroderma (CIE) characterized by fine, whitish scales on erythematous skin over the whole body. Here, we report a late-diagnosed, 25-year-old woman with NLSDI presenting with diffuse erythema and fine whitish scales throughout the body with patches of apparently normal skin, "islets of sparing" on her lower extremities. We observed that the size of the normal skin islets changed with time, and even the entire lower extremity was covered with erythema and desquamation like the rest of the body.

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VEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) syndrome is a newly defined disorder in which treatment is still unclear. Herein, a patient with VEXAS syndrome who had atypical findings and an interesting treatment course is presented as a case report. He had fatigue, recurrent fever, pulmonary infiltrates, proteinuria, anemia, leucopenia, transient skin rush and increased acute phase reactants.

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Article Synopsis
  • Patients with systemic lupus erythematosus (SLE), a disease that affects the immune system, are more likely to get different kinds of infections when they take medicines that weaken their immune system.
  • A 48-year-old woman with SLE had a high fever and low blood cell counts, which doctors initially thought were due to her SLE.
  • After further testing showed she had leishmaniasis, a disease caused by a parasite, she was treated successfully with medicine and got better quickly!
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Olmsted syndrome is a rare genodermatosis. Palmoplantar keratoderma and periorificial keratodermic plaques are the most important clinical findings. Additional findings associated with a large number of systems may accompany such as teeth, nail deformities, alopecia, mental retardation, and bone-joint anomalies.

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Article Synopsis
  • Paroxysmal nocturnal hemoglobinuria (PNH) is a complex genetic disorder that can lead to serious complications like blood clots, and recent studies show positive results from a treatment called eculizumab.
  • In a study of 138 PNH patients treated with eculizumab in Turkey from 2008 to 2018, common symptoms included fatigue and hemoglobinuria, with significant improvements in hemoglobin and lactate dehydrogenase levels noted after seven months of therapy.
  • The findings suggest that eculizumab is effective and well-tolerated, with minimal serious adverse events reported among the patients.
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Purpose: 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.

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Objective: The aim of the present study was to evaluate the efficacy and 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 (187 women, 65.6%; 98 men, 34.

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Objective: This study was conducted with the aim of making the contribution to a decision for treatment and determination of the modalities in patients diagnosed with non-Hodgkın lymphoma which increasingly become widespread in the geriatric population.

Materials And Methods: Ninety-one patients aged over 65 years diagnosed with lymphoma and treated in Bezmialem Vakıf University Medical Faculty Hospital and Haseki Training and Research Hospital between 2008 and 2013 were retrospectively evaluated. Finally, 63 patients for whom data could be reached were included in the study.

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Background: Multiple myeloma is a plasma cell dyscrasia characterized by transformation of B cells into malignant cells. Although there are data regarding the molecular pathology of multiple myeloma, the molecular mechanisms of the disease have not been fully elucidated.

Aims: To investigate the gene expression profiles in bone marrow myeloma cells via RNA-sequencing technology.

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A 25-year-old woman presented with acute bilateral blurred vision and history of headache, dizziness, and syncope for three days. Her visual acuity was 20/60 in both eyes. Fundoscopy revealed multiple bilateral peripapillary yellow-white patches like cotton wool spots, intraretinal hemorrhages and macular edema.

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Background: The molecular response at 3 months of the original imatinib (OI) in patients with chronic myeloid leukemia has prognostic significance; however, this has never been tested for generic imatinib (GI).

Patients And Methods: We evaluated the BCR-ABL1 [international reporting scale (IS)] transcript levels at 3 and 6 months to determine whether an early molecular response (EMR) had a prognostic effect on the outcome among chronic myeloid leukemia patients receiving GI. Ninety patients were divided into 2 groups, according to the imatinib they received, as OI (group A) and GI (group B).

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Thrombosis and bleeding are the main complications of chronic myeloproliferative diseases. Mean platelet volume (MPV) is an important indicator of the platelet activation. The aim of the present study was to assess the interrelationships between MPV, JAK-2 gene mutation and thromboembolic events in patients with ET and PV.

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PNH Education and Study Group (PESG) have been established in December 2013 as a non-profit, independent, medical organization www.pesg.org.

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Objective: Chronic lymphocytic leukemia (CLL) is a disease of nonproliferating and mature-appearing B lymphocytes. Insulin-like growth factor-1 (IGF-1) is a small peptide hormone and has mitogenic and antiapoptotic effects, and insulin-like growth factor binding protein-3 (IGFBP-3) has antiproliferative effects on cells. In this study, we investigated plasma levels of both IGF-1 and IGFBP-3 in patients with CLL compared with controls, and we compared these plasma levels according to prognostic factors.

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Imatinib is a tyrosine kinase inhibitor used in the treatment of chronic myeloid leukemia (CML). Cutaneous adverse reactions of imatinib therapy have been reported in 7%-88.9% patients.

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Introduction: Positron emission tomography and computed tomography (PET/CT) has become an important part of staging and treatment evaluation algorithms of lymphoma. We aimed to compare the results of PET/CT with bone marrow biopsy (BMB) with respect to bone marrow involvement (BMI) in patients with Hodgkin's lymphoma (HL) and aggressive non-Hodgkin's lymphoma (aNHL).

Methods: The medical files of a total of 297 patients diagnosed with HL or aNHL and followed at the hematology clinics of 3 major hospitals in İstanbul between 2008 and 2012 were screened retrospectively and 161 patients with classical HL and aNHL were included in the study.

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