Publications by authors named "Bahriye Payzın"

Objective: Peripheral T-cell lymphomas (PTCLs) are an uncommon and quite heterogeneous group of disorders, representing only 10%-15% of all non-Hodgkin lymphomas. Although both molecular and clinical studies have increased in recent years, we still have little knowledge regarding real-life practice with PTCLs. In this study, we aimed to investigate the clinical characteristics and treatment outcomes of a large population-based cohort of patients presenting with systemic non-cutaneous PTCL.

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We aimed to analyze the characteristics and response rates of different treatment modalities in hairy cell leukemia patients over 20 diagnosed as hairy cell leukemia (HCL). Clinical data, response rates and survival outcome of the patients who were diagnosed with HCL were retrospectively analyzed. Fifty-two patients with a median age of 50 (28-87) years were enrolled in the study.

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Detailed history taking, physical examination and laboratory tests are useful tools to document any abnormal bleeding risk before an operation or an invasive procedure. Although coagulation tests are routinely used to demonstrate the pathological situations at the coagulation cascade or to follow-up the anticoagulation therapies, their role in determining the bleeding risk in preoperative patients is controversial. : In this study, we aimed to evaluate the patients referring to our hematology clinic at Izmir Katip Celebi University Hospital for preoperative consultation due to elevated levels of coagulation tests.

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We aimed to analyze 10-year experience of WAIHA patients at a single referral center in Turkey. Clinical data, survival outcome of sixty patients who were diagnosed with WAIHA were retrospectively analyzed. All the patients were direct antiglobulin test (DAT) positive.

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Objective: Significant developments occurred in the clinical management of acute lymphoblastic leukemia (ALL) in adults in recent decades. However, treatment results are still not satisfactory, especially in routine practice. The objective of this study was to evaluate the general clinical features, treatment details, and outcomes of a large group of patients followed in multiple centers in Turkey with a diagnosis of ALL.

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Therapeutic plasma exchange (TPE) is used to treat more than 60 diseases worldwide and has drawn growing interest. Little is known about the current situation of TPE activity in Turkey, so we developed a survey to obtain information about this timely topic. We collected data on TPE from 28 apheresis units throughout Turkey.

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Thrombotic microangiopathies (TMAs) are rare, but life-threatening disorders characterized by microangiopathic hemolytic anemia and thrombocytopenia (MAHAT) associated with multiorgan dysfunction as a result of microvascular thrombosis and tissue ischemia. The differentiation of the etiology is of utmost importance as the pathophysiological basis will dictate the choice of appropriate treatment. We retrospectively evaluated 154 (99 females and 55 males) patients who received therapeutic plasma exchange (TPE) due to a presumptive diagnosis of TMA, who had serum ADAMTS13 activity/anti-ADAMTS13 antibody analysis at the time of hospital admission.

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Paroxysmal nocturnal hemoglobinuria (PNH) is a disease which diagnosis may be delayed due to variable clinical findings. We describe herein a case of PNH in a 21 year old woman who admitted with complaints of chronic weakness, intermittent spontaneous ecchymoses, and an intermittent abdominal pain. On laboratory tests thrombocytopenia and iron deficiency anemia without any clinical findings were found.

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Introduction: Chronic myeloproliferative disorders (CMPD) are chronic myeloid hematological disorders, characterized by increased myeloid cell proliferation and fibrosis. Impaired apoptotic mechanisms, increased cell proliferation, uncontrolled hematopoietic cell proliferation and myeloaccumulation may contribute to the pathogenesis of CMPD. The aim of our study was to show the possible role of FAS/FASL gene polymorphisms in CMPD pathogenesis and investigate the association with clinical parameters and susceptibility to disease.

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Introduction: Atypical hemolytic uremic syndrome (aHUS) is a thrombotic microangiopathy, which develops as a result of defective activity of the alternative complement pathway and excessive complement activation due to genetic or acquired factors. No satisfactory responses were obtained by plasmapheresis, corticosteroids and fresh frozen plasma (FFP) transfusion. However, promising results are obtained in recent years by eculuzimab treatment, which inhibits C5 activation.

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Objective: The curative treatment approach for diffuse large B-cell lymphoma (DLBCL) is controversial even in the rituximab (R) era. The aim of this study was to examine the FcγRIIIA gene polymorphism distribution of DLBCL patients who had been treated with R-CHOP (cyclophosphamide, doxorubicin, vincristine, and prednisone) chemotherapy. Furthermore, we investigated the impact of FcγRIIIA gene polymorphism on the overall response rate (ORR) and overall survival (OS).

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Objective: Immune thrombocytopenia (ITP) is an immune-mediated disease characterized by transient or persistent decrease of the platelet count to less than 100x109/L. Although it is included in a benign disease group, bleeding complications may be mortal. With a better understanding of the pathophysiology of the disease, thrombopoietin receptor agonists, which came into use in recent years, seem to be an effective option in the treatment of resistant cases.

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Multiple induction regimens have been developed for adult patients with acute lymphoblastic leukemia (ALL). However, there have been no prospective randomized trials that directly compare these regimens. In this study, we wanted to evaluate the outcome of 50 adult ALL patients treated with BFM (i.

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Purpose: To present the clinical characteristics, treatments performed, response to treatment, and follow up of 40 patients diagnosed with primary cutaneous lymphoma.

Methods: In this retrospective study included were 23 males and 17 females from our center with confirmed diagnosis of primary cutaneous lymphoma over an 8-year period. Data were retrieved from the patient medical records.

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Objective: Diffuse large B-cell lymphoma (DLBCL) is a high-grade neoplasm that has heterogeneous properties in clinical, morphological, and immunophenotypic aspects. In the present study the effects of p53, Bcl-2, and Ki67 on prognosis and their relationships with clinical parameters were examined. 


Materials And Methods: Thirty-five patients who had been diagnosed with nodally located DLBCL at İzmir Atatürk Training and Research Hospital between January 1999 and June 2006 were included in the study.

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Objective: Immunoglobulin free light chain (FLC) abnormalities are common in patients with monoclonal gammopathies and the kidneys are the most affected organs. Immunoassays that provide quantitative measurement of FLC in serum indicate monoclonal FLC production based on the presence of an abnormal FLC kappa:lambda (κ:λ) ratio. The aim of this study was to assess the utility of serum FLC measurement as a diagnostic tool for detecting plasma cell dyscrasias in comparison to standard assays, and to ascertain its sensitivity and specificity in patients with acute renal failure (ARF).

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Purpose: Metastatic renal cell carcinoma (mRCC) bears a poor prognosis. We investigated the prognostic significance of some hematologic parameters of patients with mRCC.

Methods: We retrospectively reviewed the records of 53 patients with mRCC .

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Langerhans cell sarcoma is a rare, high-grade neoplasm with overtly malignant cytological features and the Langerhans phenotype. Herein, we present a rare case of Langerhans cell sarcoma in a 65-year-old female that presented with a painless enlarging mass in her right axillary region, along with the histopathological features and diagnostic characteristics in the light of literature on Langerhans cell sarcoma.

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Malignant lymphoma that secondarily involves the cervix is a rare condition and may be difficult to distinguish from follicular cervicitis and small cell carcinoma. Cervical lymphoma is sometimes misdiagnosed on cervicovaginal cytology due to its rarity. We report a case of a cervical lymphoma in a 65-year-old woman, which was diagnosed as a squamous cell carcinoma on cervicovaginal cytology.

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Background/aims: Thromboembolic events are a rare but significant complication of inflammatory bowel disease. The aim of this study was to investigate the level of natural coagulation inhibitors and activated protein C resistance in Turkish patients with inflammatory bowel disease.

Methods: Fifty patients (29 male, 21 female) without venous thrombosis history and 37 healthy controls were included in the study.

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Background: Altered platelet morphology and function have been reported in patients with diabetes mellitus. They are likely to be associated with the pathological processes and increased risk of vascular disease seen in these patients. We aimed to determine the mean platelet volume (MPV) in diabetics compared to nondiabetics, to see if there is a difference in MPV between diabetics with and without macro- and microvascular complications, and to determine the correlation between MPV and fasting blood glucose, glycosylated hemoglobin (HbA(1)c), patient age, and duration of diabetes, respectively.

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Cutaneous lymphomas tend to be of T-cell origin, less commonly of B-cell origin. We report a 68-year-old male patient suffering from extensive cutaneous nodules which were found to be B-cell large cell lymphoma in nature. Our case is a good example to unexpected cutaneous involvement of diffuse large cell lymphomas.

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