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Öğe Assessment of Patients with von Willebrand Disease with ISTH/BAT and PBQ Scores(Galenos Yayincilik, 2020) Apak, Fatma Burcu Belen; Umit, Elif Gulsum; Zengin, Yagmur; Evim, Melike Sezgin; Unal, Ekrem; Ozbas, Hasan Mucahit; Acipayam, Can[Abstract Not Available]Öğe Castleman Disease: A Multicenter Case Series from Turkey(Galenos Publ House, 2022) Gunduz, Eren; Kirkizlar, Hakki Onur; Umit, Elif Gulsum; Gulsaran, Sedanur Karaman; Ozkocaman, Vildan; Ozkalemkas, Fahir; Candar, OmerObjective: Castleman disease (CD) is a rare disease also known as angiofollicular lymph node hyperplasia. The two main histological subtypes are the hyaline vascular and plasma cell variants. It is further classified as unicentric CD (UCD) or multicentric CD (MCD) according to the anatomical distribution of the disease and the number of lymph nodes involved. The aim of this multicenter study was to evaluate all cases of CD identified to date in Turkey to set up a national registry to improve the early recognition, treatment, and follow-up of CD. Materials and Methods: Both adult (n=130) and pediatric (n=10) patients with lymph node or involved field biopsy results reported as CD were included in the study. Patients' demographic information, clinical and laboratory characteristics, imaging study results, treatment strategies, and clinical outcomes were evaluated retrospectively. Results: A total of 140 patients (69 male and 71 female) with a diagnosis of UCD (n=73) or MCD (n=67) were included. The mean age was 39 years in the UCD group and 47 years in the MCD group. Female patients were more common in the UCD group. The most common histological subtype was hyaline vascular for both UCD and MCD patients. Asymptomatic patients were more common in the UCD group. Anemia, elevations of acute phase reactants, and hypoalbuminemia were more common in the MCD group. The most commonly used treatment strategies for UCD were surgical excision, rituximab, and radiotherapy, respectively. All UCD patients were alive at a median of 19.5 months of follow-up. The most commonly used treatment strategies for MCD were methyl prednisolone, R-CHOP, R-CVP, and rituximab. Thirteen MCD patients had died at a median of 34 months of follow-up. Conclusion: This study is important in presenting the patient characteristics and treatment strategies for CD from Turkey, with the potential of increasing awareness about CD. Treatment data may help in making decisions, particularly in countries that do not have access to siltuximab. However, larger prospective studies are needed to make definitive conclusions.Öğe Clonal Hematopoiesis in Multiple Myeloma, Relations with Treatment Toxicity(Cig Media Group, Lp, 2021) Gulsaran, Sedanur Karaman; Umit, Elif Gulsum; Bas, Volkan; Baysal, Mehmet; Puyan, Fulya Oz; Demir, Ahmet Muzaffer[Abstract Not Available]Öğe Economic analysis of oral posaconazole prophylaxis in acute myeloid leukemia during remission induction in Turkey(Kare Publ, 2020) Umit, Elif Gulsum; Baysal, Mehmet; Kirkizlar, Hakki Onur; Demir, Ahmet MuzafferOBJECTIVE: Invasive fungal infections (IFI) are important and trending causes of mortality in patients with acute leukemia, especially during the remission induction. METHODS: In this study, 225 patients who were diagnosed with acute myeloid leukemia (AML) and undergoing intensive treatment for remission induction were enrolled in a retrospective manner. RESULTS: Within the whole group, which consisted of 225 patients, 90 patients received prophylactic antifungal treatment (PAT) (40%), while 135 patients did not (60%) receive. The mean cost of hospitalization was 9.151,6 (2.872,6-20.483,3) US dollars. Gender distribution and mean ages of groups were similar. One hundred fourteen patients not on PAT (84.4%) and five patients on PAT (5.5%) received intravenous antifungal treatment. Thirty-two of the patients who were not on PAT (23.7%) and 11 of the patients on PAT died during remission induction (12.22%). The mean day of the hospitalization was 22.61 days for the patients on PAT and 33.89 days for the patients who were not on PAT. In patients on PAT, the mean number of transfused platelet units was six (0-9), while 12.51 (4-43) units for patients who were not on PAT. CONCLUSION: In our study, the oral suspension form of posaconazole was observed to be cost-effective to prevent IFI with a significant decrease in mortality during remission induction treatment.Öğe Efficacy and Safety of Ibrutinib Therapy in Patients with Chronic Lymphocytic Leukemia: Retrospective Analysis of Real-Life Data(Galenos Yayincilik, 2021) Tombak, Anil; Tanrikulu, Funda Pepedil; Durusoy, Salih Sertac; Dincyurek, Huseyin Derya; Kaya, Emin; Umit, Elif Gulsum; Yavasoglu, IrfanObjective: This study aimed to retrospectively evaluate the efficacy, safety, and survival outcome of single-agent ibrutinib therapy in chronic lymphocytic leukemia patients. Materials and Methods: A total of 136 patients (mean age +/- standard deviation: 64.6 +/- 10.3 years, 66.9% males) who had received at least one dose of ibrutinib were included in this retrospective multicenter, noninterventional hospital-registry study conducted at 33 centers across Turkey. Data on patient demographics, baseline characteristics, laboratory findings, and leukemia-cell cytogenetics were retrieved. Treatment response, survival outcome including overall survival (OS) and progression-free survival (PFS), and safety data were analyzed. Results: Overall, 36.7% of patients were categorized as Eastern Cooperative Oncology Group (ECOG) class 2-3, while 44.9% were in Rai stage 4. Fluorescence in situ hybridization revealed the presence of del(17p) in 39.8% of the patients. Patients received a median of 2.0 (range: 0-7) lines of pre-ibrutinib therapy. Median duration of therapy was 8.8 months (range: 0.4-58.0 months). The 1-year PFS and OS rates were 82.2% and 84.6%, respectively, while median PFS time was 30.0 (standard error, 95% confidence interval: 5.1, 20.0-40.0) months and median OS time was 37.9 (3.2, 31.5-44.2) months. Treatment response (complete or partial response), PFS time, and OS time were better with 0-2 lines versus 3-7 lines of prior therapy (p<0.001, p=0.001, and p<0.001, respectively), with ECOG class 0-1 versus class 2-3 (p=0.006, p=0.011, and p=0.001, respectively), and with Rai stage 0-2 versus 3-4 (p=0.002, p=0.001, and p=0.002, respectively). No significant difference was noted in treatment response rates or survival outcome with respect to the presence of comorbidity, bulky disease, or del(17p). While 176 adverse events (AEs) were reported in 74 (54.4%) patients, 46 of those 176 AEs were grade 3-4, including pneumonia (n=12), neutropenia (n=11), anemia (n=5), thrombocytopenia (n=5), and fever (n=5). Conclusion: This real-life analysis confirms the favorable efficacy and safety profile of long-term ibrutinib treatment while emphasizing the potential adverse impacts of poorer ECOG performance status, heavy treatment prior to ibrutinib, and advanced Rai stage on patient compliance, treatment response, and survival outcomes.Öğe Hypogammaglobulinemia and Poor Performance Status are Predisposing Factors for Vancomycin-Resistant Enterococcus Colonization in Patients with Hematological Malignancies(Galenos Yayincilik, 2017) Umit, Elif Gulsum; Kuloglu, Figen; Demir, Ahmet MuzafferObjective: Vancomycin-resistant enterococci (VRE) are common pathogens of hospital-acquired infection. Long hospitalization periods, use of broadspectrum antibiotics, and immunosuppression are major risks for VRE colonization. We aimed to evaluate patients' characteristics and factors that may contribute to VRE colonization. Materials and Methods: Data of 66 patients with colonization and 112 patients without colonization who were hospitalized in the hematology clinic were collected. Hematological malignancies, preexisting gastrointestinal complaints, the presence of hypogammaglobulinemia at the time of diagnosis, complications like neutropenic enterocolitis (NEC), and Eastern Cooperative Oncology Group (ECOG) and Karnofsky performance statuses were recorded. Results: Ages of the patients ranged between 19 and 95 years (mean: 55.99). Karnofsky and ECOG scores were statistically related to VRE colonization (p<0.000 and p<0.000), though only the Karnofsky score was significant based on logistic regression analysis. Almost all patients with acute leukemia (45 patients) had been on antibiotics (piperacillin-tazobactam, ceftazidime, and meropenem), while no patients with myelodysplastic syndrome, myeloma, or benign diseases and 2 patients with lymphoma and 1 with chronic myeloid leukemia were on antibiotics. Median time for colonization regardless of antibiotic use and diagnosis was 4.5 days (range: 3-11 days). In the VRE-colonized group, 40.9% of patients had NEC development, while in the non-colonized group, only 1.7% had NEC development. In the VRE-colonized group 46 patients (69.7%) and in the non-colonized group 27 patients (24.1%) had hypogammaglobulinemia at diagnosis; among these patients, 23 patients in the VRE-colonized group (50%) had a B-cell malignancy (lymphoma, myeloma, or chronic lymphocytic leukemia). Conclusion: Besides already anticipated diseases like leukemia, B-cell malignancies are also at high risk for colonization. This proclivity may be attributed to lack of gastrointestinal IgA due to hypogammaglobulinemia. Prolonged hospitalization (>7 days) may also be accepted as a risk factor, independent of diagnosis or antibiotic use. Performance status is also an important factor for colonization, which may be related to poorer hygiene and increased external help.Öğe Immune Thrombotic Thrombocytopenic Purpura in Elderly Patients: The Roles of PLASMIC and French Scores(Galenos Publ House, 2023) Baysal, Mehmet; Hindilerden, Fehmi; Umit, Elif Gulsum; Demir, Ahmet Muzaffer; Karadag, Fatma Keklik; Saydam, Guray; Akpinar, SevalObjective: In recent years, new developments have been incorporated into daily practice in the management of immune thrombotic thrombocytopenic purpura (iTTP). In particular, clinical scoring systems could help clinicians with clinical decision-making and early recognition. However, older patients frequently present with more organ involvement and in unusual ways. The ways in which age could affect these clinical prediction scoring systems remain unclear. We evaluated the use of PLASMIC and French scores in patients over 60 years of age. Materials and Methods: We performed a retrospective cross-sectional analysis of patients over 60 years of age with a presumptive diagnosis of iTTP between 2014 and 2022 at 10 centers. We calculated PLASMIC and French scores and compared our data with a single-center analysis of younger patients presenting with thrombotic microangiopathy. Results: Our study included 30 patients over 60 years of age and a control group of 28 patients younger than 60 years. The diagnostic sensitivity and specificity of a French score of >= 1 were lower in older patients compared to the control group (78.9% vs. 100% and 18.2% vs. 57.1%, respectively). The diagnostic sensitivity and specificity of a PLASMIC score of >= 5 were 100% vs. 95% and 27.3% vs. 100% for the study group and control group, respectively. Our study showed a higher mortality rate in older patients compared to the control group (30% vs. 7.1%, p=0.043). Conclusion: For a limited number of patients (n=6), our results showed that rituximab can reduce mortality. Given that the reliability of clinical prediction scores for iTTP in older patients may be lower, more caution must be undertaken in interpreting their results.Öğe Incidence and predisposing factors of infection in patients treated with hypomethylating agents(Pergamon-Elsevier Science Ltd, 2023) Kirkizlar, Tugcan Alp; Kirkizlar, Onur; Demirci, Ufuk; Umut, Aytug; Iflazoglu, Huseyin; Umit, Elif Gulsum; Demir, Ahmet MuzafferObjective: Hypomethylating agents may have adverse effects such as cytopenias, cytopenia associated infections and fatality due to infections despite their favorable effects in the treatment of acute myeloid leukemia (AML), myelodysplastic syndromes (MDS) and chronic myelomonocytic leukemia (CMML). The infection prophylaxis approach is based on expert opinions and real-life experiences. Hence, we aimed to reveal the frequence of infections, predisposing factors of infection and to analyse infection attributable mortality in patients with high -risk MDS, CMML and AML who received hypomethylating agents in our center where routine infection pro-phylaxis is not applied. Material-method: 43 adult patients with AML or high-risk MDS or CMML who received HMA >= 2 consecutive cycles from January 2014 to December 2020 were enrolled in the study. Results: 43 patients and 173 treatment cycles were analyzed. The median age was 72 years and 61.3 % of patients were males. The distribution of the patients' diagnoses was; AML in 15 patients (34.9 %), high risk MDS in 20 patients (46.5 %), AML with myelodysplasia-related changes in 5 patients (11.6 %) and CMML in 3 patients (7 %). 38 infection events (21.9 %) occurred in 173 treatment cycles. 86.9 % (33 cycles) and 2.6 % (1 cycle) of infected cycles were bacterial and viral infections, respectively and 10.5 % (4 cycles) were bacterial and fungal concurrently. The most common origin of the infection was respiratory system. Hemoglobin count was lower and CRP level was higher at the beginning of the infected cycles significantly (p values were 0.002 and 0.012, respectively). Requirement of red blood cell and platelet transfusions were found to be significantly increased in the infected cycles (p values were 0.000 and 0.001, respectively). While > 4 cycles of treatment and increased platelet count were found to be protective against infection, > 6 points of Charlson Comorbidity Index (CCI) were found to increase the risk of infection. The median survival was 7.8 months in non-infected cycles while 6.83 months in infected cycles. This difference was not statistically significant (p value was 0.077). Discussion: The prevention and management of infections and infection-related deaths in patients treated with HMAs is crucial. Therefore, patients with a lower platelet count or a CCI score of > 6 may be candidates for infection prophylaxis when exposed to HMAs.Öğe The Incidence of Venous Thromboembolism and Impact on Survival in Hodgkin Lymphoma(Cig Media Group, Lp, 2020) Kirkizlar, Onur; Kirkizlar, Tugcan Alp; Umit, Elif Gulsum; Asker, Ismail; Baysal, Mehmet; Bas, Volkan; Gulsaran, Sedanur KaramanVenous thromboembolic events are associated with high morbidity and mortality in malignancy patients. We should be aware in terms of venous thromboembolism in patients who have involvement of spleen, advanced stage disease, or a central venous line, especially initial high fibrinogen levels, even with a good performance status. Background: Thrombosis increase the acute and long-term morbidity and mortality in malignancy patients. We analyzed venous thromboembolism (VTE) in patients with Hodgkin lymphoma, the impact of VTE on survival, predisposing factors for VTE, and predicting value of Khorana and ThroLy score models. Patients and Methods: We included 150 adult patients with Hodgkin lymphoma between January 2010 and 2018 at our university hospital. Results: VTE was observed in 31 patients (20.7%). The types of VTE were 18 upper and 3 lower extremity deep vein thrombosis and 10 pulmonary embolism (1 with lower extremity deep vein thrombosis). Twenty-nine patients developed VTE during the treatment with a median time of episode as 5 months. In logistic regression analysis, a body mass index of >32 kg/m(2), high fibrinogen levels, initial thrombocytosis and leukocytosis, splenic and extranodal involvement, presence of a central venous line, advanced stage, line of treatment status of thromboprophylaxis, VTE timing, and better Eastern Cooperative Oncology Group performance scores were observed to be related with VTE. Kaplan Meier survival analysis showed a negative impact of VTE on survival. Khorana and ThroLy risk assessment models were found predictive for VTE (P = .000 and P = .003, respectively), although only ThroLy score was associated with the survival. Conclusion: Thromboprophylaxis and precautions for VTE in patients with Hodgkin lymphoma according to validated risk assessment models can improve prognosis and quality of life owing to the impact of VTE on survival in the study. (C) 2020 Elsevier Inc. All rights reserved.Öğe Increased Risk of e-Thrombosis in e-Life Era(Sage Publications Inc, 2021) Demirci, Ufuk; Umit, Elif Gulsum; Demir, Ahmet Muzaffer[Abstract Not Available]Öğe Is JAK2V617F Mutation the Only Factor for Thrombosis in Philadelphia-Negative Chronic Myeloproliferative Neoplasms?(Springer India, 2016) Uyanik, Mehmet Sevki; Baysal, Mehmet; Pamuk, Gulsum Emel; Maden, Muhammet; Akker, Mustafa; Umit, Elif Gulsum; Demir, MuzafferThe most common genetic disorder in Philadelphia negative chronic myeloproliferative neoplasms is the JAK2-V617F mutation. In the present study, we aimed to determine risk factors for thrombosis in patients with essential thrombocytosis and polycythemia vera. We screened the medical records of 101 patients. Risk factors which may predict thrombosis were recorded. Venous thrombosis (VT) before diagnosis was significantly higher in JAK2 positive patients. VT after diagnosis was similar in JAK2 positive and negative groups, and was significantly higher in elderly patients. Treatment places importance on the JAK2 mutation under unmodifiable cardiovascular risk factors such as advanced age after diagnosis.Öğe Letter to the Editor concerning New Predictive Parameters of Bell's Palsy: Neutrophil to Lymphocyte Ratio and Platelet to Lymphocyte Ratio(Galenos Publ House, 2016) Umit, Elif Gulsum[Abstract Not Available]Öğe Morphologic evaluation of megakaryocytes in immune thrombocytopenia patients older than 80 years(Kare Publ, 2023) Demirci, Ufuk; Umit, Elif Gulsum; Baysal, Mehmet; Demir, Ahmet MuzafferOBJECTIVE: In immune thrombocytopenia (ITP), which is a common acquired bleeding disorder, cytotoxic T-cell-mediated cellular immune response against both circulating platelets and bone marrow megakaryocytes are the most important mechanisms in the pathogenesis. METHODS: In our study, we evaluated the features of 33 patients with ITP, over 80 years of age. RESULTS: The median age of the patients was 90, 15 patients were female (45.4%). The mean platelet count of the patients was 39x109/L and the mean mean platelet volume was 10,33fL. Twelve patients had a target thrombocyte count greater than 30x109/L, while 20 patients had a target platelet count of 75x109/L or greater with an absolute indication of antiaggregation. In the environmental spread, 18 dysplasia findings were observed. CONCLUSION: Morphologic observations suggesting dysplasia including micromegakaryocytes and a non-dysplastic but dysmegakaryopoietic finding, multiple segmented nuclei may be related to the degree of thrombocytopenia and response to treatment. Likewise, nondysplastic features including immature forms, emperipolesis, bare nucleus, hypolobulation, and hypersegmented nucleus were related to the degree of thrombocytopenia.Öğe Multiple Liver and Muscle Abscesses and Sepsis with Bacillus pantothenticus in a Leukemia Patient(Galenos Yayincilik, 2014) Umit, Elif Gulsum; Umit, Hasan Celalettin; Kuloglu, Figen; Demir, Ahmet Muzaffer[Abstract Not Available]Öğe The relation between the levels of osteoprotegerin and the degree of coronary artery disease in patients with acute coronary syndrome and stable angina pectoris(Via Medica, 2014) Aksu, Feyza; Ozcelik, Fatih; Kunduracilar, Hakan; Barutcu, Ahmet; Yel, Mesih; Umit, Elif Gulsum; Altun, ArmaganBackground: Osteoprotegerin (OPG), an inhibitor of osteoclastogenesis, has recently been under the spotlight in studies regarding the pathophysiology of atherosclerosis. Aim: To evaluate the value of serum OPG in the diagnosis and severity in patients with stable angina pectoris (SA) and unstable angina pectoris/non ST elevation myocardial infarction. Methods: This study involved 160 patients, SA (n = 65), acute coronary syndrome (NSTE-ACS; n = 65), and a control group (n = 30). Blood samples were collected in the first hour, after 24 hours and on the fifth day. The prevalence of coronary artery atherosclerotic lesions was determined using the Gensini scoring system. Results: A statistically significant difference was observed in the first hour OPG levels between the control group and both the SA and NSTE-ACS group (p < 0.001). When the cut-off value was determined as 247.71 pg/mL, the sensitivity and specificity of the first hour OPG levels indicating coronary artery disease were 91.54% and 46.67%, respectively, while the positive predictive value was 88.1% and the negative predictive value was 56%. No correlations were observed between the first, 24th hour and the fifth day OPG levels and the Gensini scores. No relation was denoted between the OPG levels and number of diseased coronary arteries. Conclusions: In our study, serum OPG level seemed to be unrelated to the severity or the degree of coronary artery disease in patients with SA and unstable angina pectoris/non ST elevation myocardial infarction. OPG may only be accepted as an indicator of coronary artherosclerosis.Öğe Sarcopenia in Hodgkin's lymphoma evaluated with 18-FDG PET/CT, focus on age, performance, and treatment(Springer, 2021) Bas, Volkan; Umit, Elif Gulsum; Korkmaz, Ulku; Baysal, Mehmet; Karaman Gulsaran, Sedanur; Demirci, Ufuk; Kirkizlar, Hakki OnurSarcopenia is defined as a progressive and generalized muscle disorder associated with certain physiological and pathological conditions. We aimed to evaluate the prevalence of sarcopenia in patients with HL using 18-fluoro deoxyglucose (FDG) PET/CT, which would provide a data of muscle mass with the CT compartment and also data of muscle metabolism with the 18-FDG compartment of the imaging modality. Fifty-nine patients diagnosed with HL were included in the study. PET/CT images before and after treatment were evaluated with regard to lumbar muscle mass and metabolism. Mean lumbar muscle evaluation with CT before treatment was 92, 40 HU, and after treatment was 89, 41 HU. Mean metabolic tumor volume (MTV) evaluated with FDG PET before treatment was 4, 13 mm(3)while after treatment was 4, 10 mm(3). The lumbar muscle mass in terms of HU which was evaluated with CT was observed to be decreased after treatment. Likewise, the metabolic evaluation was observed to be also decreased after treatment. Despite the decline in muscle mass after treatment in the whole group, this decline was particularly observed in the better initial performance group. In patients with BMI > 32, there was a significant decline in muscle mass. Abdominal nodal involvement was related with poorer muscle mass and quality. In HL care, particular attention should be given to patients who are younger and with better physical condition in terms of preserving the muscle reserves and preventing sarcopenia.Öğe Splanchnic Venous Thrombosis, with Spotlight on Occult Malignancies, Anticoagulation, and Bleeding(Aves Press Ltd, 2018) Umit, Elif Gulsum; Baysal, Mehmet; Kirkizlar, Hakki Onur; Demir, Ahmet MuzafferObjective: Splanchnic venous thrombosis (SVT) conceptually embraces thrombosis in the portal, hepatic, splenic, and mesenteric venous system thrombosis. The SVT risk factors may be classified as abdominal disorders, underlying myeloproliferative neoplasms (MPN), inherited thrombophilic syndromes, and autoimmune disorders. The aim of our study is to evaluate the risk factors for SVT and their relations with the localization of involvement and anticoagulation during the acute period and relation to major bleeding. Methods: All patients with portal vein thrombosis or splenic venous thrombosis in their radiologic evaluation report were included over a 5-year period. Results: Of the 96 patients, 87 had an identifiable risk factor for SVT (90.6%). The major risk factor was cirrhosis (60 patients, 62.5%). Other risk factors included thrombophilic conditions (12 patients, 12.6%), 6 patients had the myeloproliferative disorder (6.3%), and most interestingly, 24 had occult malignancy for which SVT was the presenting factor (25%). Within the whole group, 51 patients (53.1%) received anticoagulant treatment. Within the whole group, 30 patients developed major bleeding (31.3%), and 20 of these patients did not receive anticoagulation therapy. Twenty-five of the patients with cirrhosis suffered bleeding, and 18 of them did not receive anticoagulation therapy. Conclusion: Almost all patients with SVT had an identifiable risk factor. The follow-up and further treatments should be based on this risk factor. SVT may be the presenting finding of occult malignancies and occult malignancy should be investigated in every patient with SVT. Anticoagulation during the initial acute period should not be withheld, even in patients with the chronic liver disease with a concern for major bleeding.Öğe Successful pregnancy and delivery management in a patient with Bernard Soulier Syndrome(Sage Publications Ltd, 2023) Demirci, Ufuk; Erbilen, Esra Altan; Umit, Elif Gulsum; Inan, Cihan; Sayin, N. Cenk; Demir, Ahmet MuzafferBernard Soulier Syndrome (BSS) is an inherited bleeding disorder characterized by macrothrombocytopenia and absence of ristocetin-induced platelet aggregation. Clinical findings vary from person to person. Most of the patients are diagnosed with muco-cutaneous bleeding such as purpura, epistaxis and gingival bleeding in early childhood. Few pregnant women with BSS are described in the literature. Management of thrombocytopenia during pregnancy and delivery requires a multidisciplinary approach. The family should be warned about the potentially life-threatening bleeding during pregnancy and the delivery and the decision about mode of delivery should be individualised, involving discussion with patient and multidisciplinary team.