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Öğe Analysis of inherited thrombophilic mutations and natural anticoagulant deficiency in patients with idiopathic portal hypertension(Springer, 2009) Bayan, Kadim; Tuzun, Yekta; Yilmaz, Serif; Canoruc, Naime; Dursun, MehmetIdiopathic portal hypertension (IPH) is characterized by non-cirrhotic presinusoidal intrahepatic portal hypertension. The etiopathogenesis of the disease is poorly understood. Obliteration with microthrombosis of the small portal vein branches may lead to lesions underlying portal hypertension. We aimed to put forward a comprehensive thrombophilic mutation profile in IPH and its probable contribution to pathogenesis. Eleven patients and 12 controls were included. We used the CVD-StripAssay which is based on the reverse-hybridization principle to identify a total of 12 thrombophilic gene mutations: Factor V R506Q, Factor V H1299R, prothrombin G20210A, Factor XIII V34L, beta-Fibrinogen -455 G-A, PAI-1 4G/5G, platelet GPIIIa L33P, MTHFR C677T, MTHFR A1298C, ACE I/D, Apo B R3500Q and Apo E2/E3/E4, respectively. We also evaluated some blood parameters and protein C, protein S, AT-III levels using commercially available assays. IPH patients and controls were similar in respect to gender distribution (P = 1.000). Mean age was 31.2 in patients and 29.1 in controls (P = 0.622). Pica history was present in 54.5% of the patients. Mean protein C and AT-III levels were lower in patients than that of controls (P = 0.002 and 0.001, respectively). Factor XIII V34L, PAI-1, GPIIIa L33P, MTHFR C677T and MTHFR A1298C frequencies of genetic polymorphisms were found to be significantly higher among patients than that of controls. Apolipoprotein E2/E3/E4 analysis showed an inverse relationship with IPH when E2 plus E4 compared with E3. A higher frequency of Beta-Fibrinogen -455G-A mutation was observed in patients, but this difference did not reach a statistical significance. Our data represent the most comprehensive study to date with respect to thrombophilic gene polymorphisms in IPH. The data support a possible pathogenetic role in IPH, at least by some of the prothrombotic mutations. In order to confirm or refuse this proposal, a larger cohort of patients is needed.Öğe A Case of Polycythemia Vera Accompanied with Neurofibromatosis Type 1(Akad Doktorlar Yayinevi, 2010) Pasa, Semir; Altintas, Abdullah; Bayan, Kadim; Tuzun, Yekta; Cil, Timucin; Ayyildiz, OrhanClassical myelofibrosis syndromes (MPS) most frequently occur in adults, but MPS unique to childhood also exist. Such syndromes include juvenile chronic myelomonocytic leukemia (JMML), the MPS of monosomy 7 in childhood, familial chronic myeloid leukemia (CML), the transient MPS of infants with trisomy 21, and childhood forms of myelofibrosis. Neurofibromatosis type 1 (NF1) is an autosomal dominant genetic disorder with pigmentary abnormalities and are predisposed to benign and malignant neoplasms, mostly in children. MPSs were disproportionately common among children with NF1. Herein we reported a case of polycythemia vera (PV) accompanied to NF1 in an adult patient. The co-existance of NF1 and childhood MPS is a well known condition. The same relation was not demonstrated in adulthood NF1 patients according to our screening of the literature. Most of the reported cases were define a relation with JMML and monosomy 7 syndrome. Probably this is the first case of PV, a type of classic adult MPS accompanied to NF1.Öğe Clarifying the Relationship Between ABO/Rhesus Blood Group Antigens and Upper Gastrointestinal Bleeding(Springer, 2009) Bayan, Kadim; Tuzun, Yekta; Yilmaz, Serif; Dursun, Mehmet; Canoruc, FikriBackground and Aim The relationship between blood group antigens and peptic ulcer disease has been widely evaluated in the past. Data concerning the same association with upper gastrointestinal bleeding are very limited. We aimed to evaluate this association and we thought it was worthwhile to try to determine whether these components take some part in this complication. Methods The study population consisted of 1,098 adults (364 patients and 734 volunteer blood donors as controls). Demographic features, comorbid illnesses, and use of aspirin/nonsteroidal anti-inflammatory drugs (NSAIDs) were recorded. Blood groups were examined by gel centrifugation method. We included only patients with bleeding from peptic ulcer disease and erosive gastropathy. Ulcers were classified by using Forrest's classification system in terms of rebleeding risk. Helicobacter pylori was examined by histology. Results The gender distribution was similar in both groups. The ABO blood group phenotype distribution in patients and controls (respectively) was as follows: 46.2% versus 34.9% for group O, 32.4% versus 39.5% for group A, 15.7% versus 18.4% for group B, and 5.8% versus 7.2% for group AB. Blood group O was found to have higher frequency in the patient group than in the control group (P = 0.004). Rh positivity was also higher in patients than in controls (P = 0.007). H. pylori positivity was similar between blood groups among patients. The rebleeding and mortality rates between blood groups were also similar. Conclusion ABO blood group O had an important role in patients with upper gastrointestinal bleeding. The impact of blood group on rebleeding and mortality may be a focus for further studies.Öğe Does adding misoprostol to standard intravenous proton pump inhibitor protocol improve the outcome of aspirin/NSAID-induced upper gastrointestinal bleeding?(Springer, 2007) Yilmaz, Serif; Bayan, Kadim; Dursun, Mehmet; Canoruc, Fikri; Kilinc, Nihal; Tuzun, Yekta; Danis, RamazanAspirin and nonsteroidal anti-inflammatory drug (NSAID)-induced gastrointestinal bleeding is recognized as an important health problem. We performed a single-center randomized clinical trial to compare the effect of high-dose intravenous proton pump inhibitor (omeprazole) alone (group 1) with omeprazole in combination with a low-dose prostaglandin analog (misoprostol; group 2) on clinical outcomes in patients with aspirin/NSAID-induced upper gastrointestinal bleeding. Additionally, we evaluated the contribution of Helicobacter pylori eradication therapy on the late consequences. Patients were recruited to the study if they had upper gastrointestinal bleeding with history of taking aspirin or other NSAIDs within the week before the onset of bleeding. All were evaluated in terms of probable risk factors. After the standard treatment protocol, patients with histologically proven H pylori infection were prescribed a triple eradication therapy for 14 days. The primary end points were recurrent bleeding, surgery requirement, and death rates before discharge and at the end of follow-up period. This study lasted for 2 years. A total of 249 patients with upper gastrointestinal bleeding were admitted, and 49.7% of these patients were users of aspirin/NSAIDs. There were 67 patients in group 1 and 56 in group 2. The distributions for gender, age, comorbidity, H pylori infection, and high-risk ulcer rate were similar in both groups. Among aspirin/NSAID users, endoscopy revealed duodenal ulcer in 47 (38.2%), gastric ulcer in 10 (8.1%), and erosive gastropathy in 33 (26.8%). The overall rebleeding occurred in 12.2%, death in 2.4% of the patients. The in-hospital death (P=.414), rebleeding (P=.925), and surgery (P=.547) rates were similar in both treatment groups. After the follow-up period of 3 months, overall rebleeding occurred in 4.1%, and death in 4.8% of the patients. The overall mortality rate was highest in those > 65 years old, who were chronic low-dose aspirin users with comorbidity. One died of transfusion-related graft-versus-host disease. In this pilot study, we indicated that adding misoprostol (600 mu g/day) to standardized proton pump inhibitor treatment did not improve or change the rebleeding or mortality rates of patients with upper gastrointestinal bleeding related to aspirin/NSAID use. Other prospective studies on higher doses of misoprostol are needed to establish the coeffect. One should bear in mind that all blood products must be irradiated before transfused to the host.Öğe The effects of nonsteroidal anti-inflammatory drugs on platelet function and severity of upper gastrointestinal haemorrhage(Springer, 2009) Pasa, Semir; Bayan, Kadim; Kucukoner, Mehmet; Tuzun, Yekta; Altintas, Abdullah; Cil, Timucin; Danis, RamazanNonsteroidal anti-inflammatory drugs (NSAIDs) cause gastrointestinal (GI) damage primarily due to the inhibition of prostaglandin synthesis in gastric mucosa, which is an important factor in mucosa protection. Platelets are a cardinal feature of vascular repair. A variety of angiogenic stimulators are stored in platelets and are released during clotting at the wound. When there is a defect in any of these functions and/or platelet number, haemostasis is usually impaired and there may be an associated increased risk and severity of bleeding. While the mechanism of mucosal injury and bleeding are well documented with the use of NSAIDs, very little is known about the platelet function abnormalities and their effects on severity of upper GI bleedings. We performed a prospective analysis of 49 patients who had a history of NSAIDs use to investigate the association between the platelet function impairment associated with NSAIDs and severity of upper GI haemorrhages. Thirty-six of 49 patients (73.5%) had deteriorated platelet function. Mean severity score of patients with deteriorated platelet functions was 3.39, and that of patients with normal platelet functions was 2.46. Mean severity score was statistically significantly higher in patients with deteriorated platelet functions. In conclusion, impaired platelet functions associated with NSAIDs may cause more severe upper GI bleeding. Clinicians should be alert for GI complications especially in older patients and in those with a history of ulcer bleeding.Öğe Epidemiological and clinical aspects of liver cirrhosis in adult patients living in southeastern anatolia: Leading role of HBV in 505 cases(H G E Update Medical Publishing S A, 2007) Bayan, Kadim; Yilmaz, Serif; Tuzun, Yekta; Yildirim, YasarBackground/Aims: Liver cirrhosis is the terminal condition of liver disorders resulting from various causes. Literature lacks data on epidemiological and clinical aspects of liver cirrhosis in Turkey. We aimed to evaluate the main features of liver cirrhosis in this study. Methodology: We included in the study a total of 505 patients referred to Dicle University Hospital in the last five years and evaluated retrospectively. Demographic features, etiology, clinical findings, disease severity, complications and mortality rates were all recorded. Results: Of the patients, 136 (27%) were female and 369 were (73%) male. Mean age was 50.4. The etiologic spectrum consisted of 368 HBV (72.9%), 41 HCV (8.1%), 12 alcohol (2.4%). Rate for cryptogenic cirrhosis (CC) was 11.1% with mean age of 45.4. HDV superinfection was present in 17.8%. Most of the patients were in Child-Pugh class B. Number of decompensated cirrhosis cases was 278 (55%). Hepatocellular cancer (HCC) was seen in 8.9% of patients and 88% had HBV with a mean age of 60. HCC was seen more commonly in HDV superinfected patients (p=0.035). In-patient mortality was observed in 13.2%. Conclusions: HBV is the leading etiological factor of liver cirrhosis in Southeastern Anatolia and strict measures must be taken against perinatal or horizontal transmission of contagious pathogens. Alcohol had a marginal role in cirrhosis in our region. Although HDV superinfection is decreasing with time, it may increase HCC risk. Patients with cryptogenic cirrhosis were younger and had lower Child-Pugh scores.Öğe A head to head comparison of oral vs intravenous omeprazole for patients with bleeding peptic ulcers with a clean base, flat spots and adherent clots(Baishideng Publishing Group Inc, 2006) Yilmaz, Serif; Bayan, Kadim; Tuzun, Yekta; Dursun, Mehmet; Canoruc, FikriAIM: To compare the effect of intravenous and oral omeprazole in patients with bleeding peptic ulcers without high-risk stigmata. METHODS: This randomized study included 211 patients [112 receiving iv omeprazole protocol (Group 1), 99 receiving po omeprazole 40 mg every 12 h (Group 2)] with a mean age of 52.7. In 144 patients the ulcers showed a clean base, and in 46 the ulcers showed flat spots and in 21 old adherent clots. The endpoints were re-bleeding, surgery, hospital stay, blood transfusion and death. After discharge, re-bleeding and death were reevaluated within 30 d. RESULTS: The study groups were similar with respect to baseline characteristics. Re-bleeding was recorded in 5 patients of Group 1 and in 4 patients of Group 2 (P = 0.879). Three patients in Group 1 and 2 in Group 2 underwent surgery (P = 0.773). The mean length of hospital stay was 4.6 +/- 1.6 d in Group 1 vs 4.5 +/- 2.6 d in Group 2 (P = 0.710); the mean amounts of blood transfusion were 1.9 +/- 1.1 units in Group 1 vs 2.1 +/- 1.7 units in Group 2 (P = 0.350). Four patients, two in each group died (P = 0.981). After discharge, a new bleeding occurred in 2 patients of Group 1 and in 1 patient of Group 2, and one patient from Group 1 died. CONCLUSION: We demonstrate that the effect of oral omeprazole is as effective as intravenous therapy in terms of re-bleeding, surgery, transfusion requirements, hospitalization and mortality in patients with bleeding ulcers with low risk stigmata. These patients can be treated effectively with oral omeprazole. (c) 2006 The WJG Press. All rights reserved.Öğe Hepatitis B virus reactivation induced by Yttrium-90-ibritumomab-tiuxetan(Taylor & Francis Ltd, 2007) Cil, Timucin; Altintas, Abdullah; Tuzun, Yekta; Pasa, Semir; Isikdogan, Abdurrahman[Abstract Not Available]Öğe Pseudoxantoma elasticum, as repetitive upper gastrointestinal hemorrhage cause in a pregnant woman(W J G Press, 2007) Goral, Vedat; Demir, Dogan; Tuzun, Yekta; Keklikci, Ugur; Buyukbayram, Huseyin; Bayan, Kadim; Uyar, AsurPseudoxantoma elasticum is a rare, hereditary, multisystemic disease affecting the skin, eye, and cardiovascular system. A twenty-eight-year-old female has presented to emergency unit with the complaint of gastrointestinal hemorrhage. This patient, who had been monitored in the gastroenterology clinic more than 10 times in the past 8 years, noted a repetitive hemorrhage during her previous pregnancy in her history. The examination of the patient revealed the following signs and symptoms: atrophy in the epithelium of the retina pigment; typical angioid streaks and peau d'orange finding in the fundus; thinning of the retinal nerve fiber in OCT (optic coherence tomography); bilateral and reticular papillary lesions with yellowish-color in the neck region (plucked chicken appearance); presence of bleeding foci in fundus; and nephrocalcinosis in kidneys. In light of these symptoms, the patient was diagnosed with pseudoxantoma elasticum. Skin biopsy confirmed the pseudoxantoma elasticurn diagnose. PXE is an uncommon, hereditary disease. Early diagnosis of pseudoxantoma elasticurn cases, is important for minimalizing systemic complications and informing the other family members through genetic counseling. (C) 2007 WJG. All rights reserved.Öğe The Role of CA-125 in Differential Diagnosis of Ascites(Ortadogu Ad Pres & Publ Co, 2010) Tuzun, Yekta; Bayan, Kadim; Altintas, Abdullah; Cil, Timucin; Erdemoglu, Mahmut; Yilmaz, Serif; Dursun, MehmetObjective: CA-125 has been found to be high in almost all the patients with ascites. In this study, we tried to determine cut-off values of CA-125 in serum and ascitic fluid levels in order to discriminate non-ovarian malignancies, ovarian carcinomas and benign diseases. Material and Methods: A total of 119 patients were included in the study. The patients were divided into three groups: non-ovarian malignancies, ovarian carcinoma and benign diseases. Serum and ascitic fluid CA-125 levels were measured by electrochemiluminescence immunoassay, 'ECLIA' method. In determining the discriminitive ability of CA-125 levels between the groups, receiver operating characteristic (ROC) analysis was performed. Results: A total of 119 patients were included in the study: 55 males and 64 females. Of patients, 53 had non-ovarian malignancy, 19 had ovarian carcinoma and 47 had benign diseases. Serum and ascitic fluid CA-125 levels were high in all of the three groups. When cut-off value of ascitic CA-125 was taken as 174 U/mL, the sensitivity and specificity were found to be 69.2% and 25.5%, respectively; however, when the value was accepted as 796.5 U/mL, these rates were observed as 30.8% and 80.9% respectively. In the discrimination between ovarian carcinoma and benign diseases, when the cut-off value of ascitic CA-125 was considered as 411 U/mL, the sensitivity and specificity were obtained as 94.7% and 63.8% respectively. When the value was taken as 971.9 U/mL, the sensitivity and specificity rates were 57.9% and 78.7% respectively. Conclusion: In discriminating between malign and benign ascites, ascitic CA-125 levels rather than serum values are of significance, and it can be suggested that malignancy should be persistently searched when the value is over 1000 U/mL.Öğe An unusual case of fever of unknown origin(Akad Doktorlar Yayinevi, 2008) Tuzun, Yekta; Bayan, Kadim; Altintas, Abdullah; Cil, Timucin; Yilmaz, Serif; Dursun, MehmetKikuchi-Fujimoto disease (KFD), also called histiositic necrotizing lenfadenitis is a self limited disease, which commonly affects young Asian women. Etiology of KFD is unknown. The disease presents with lymphadenopathy, predominantly in the cervical region, fever, leucopenia and high erythrocyte sedimentation rate. It has occasionally been misdiagnosed as malignant lymphoma. The diagnosis of disease is confirmed by histopathological examination of affected lymph node. Herein, we reported a patient who presented with fever of unknown origin and diagnosed as KFD. We suggest that KFD needs to be considered as one of the differential diagnoses in patients presenting with fever of unknown origin and lymphadenopathy.
