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Orhan Ayyildiz

Publications and source records attributed to Orhan Ayyildiz.

At least 19 recordsLinked to original sources
PubMed2004

Prothrombin G20210A gene mutation with LightCycler polymerase chain reaction in venous thrombosis and healthy population in the southeast of Turkey.

Venous thrombosis (VT) is a common disease, with an annual incidence in the general population of approximately 1 per 1000. The prevalence of genetic risk factors for thrombosis varies greatly in different parts of the world. Prothrombin G20210A (PT G20210A) gene mutation has been recently identified as a common risk factor in venous thrombosis. Sixty-one patients with VT, differing in age and sex, and 340 healthy subjects were consecutively enrolled into our study to determine the prevalence of PT G20210A in VT and in the healthy population of the southeast of Turkey. The mutation was identified with fluorescence resonance energy transfer (FRET) with the LightCycler polymerase chain reaction. The PT G20210A mutation was found to be 6.5% (4/61) in the VT group and 1.2% (4/340) in the healthy group ( P = 0.021). Three patients with VT had a heterozygous PT G20210A mutation, and the other patient with VT had both Factor V Leiden and PT G20210A mutations. We showed that this method may be used safely for detection of the PT G20210A gene mutation, and the prevalence of PT G20210A mutation is significantly higher in patients with VT than in the healthy population in the southeast of Turkey.

Adult↗
PubMed2004

An unusual presentation of primary amyloidosis.

A 65-year-old male patient presented with right upper-quadrant abdominal pain. Ultrasonography revealed hypoechoic lesion in the perihepatic and intraparenchymal area. Computed tomography (CT) showed hypodense lesion in the same localization. A fine needle biopsy specimen of the perihepatic lesion was hemorrhagic. On abdominal CT, the liver showed enhancement, but the spleen did not enhance. The spleen could not be detected by scintigraphic imaging using Tc99m sulfur dioxide. A diagnosis of primary amyloidosis was made by renal biopsy. Melphalan 10 mg/day for 4 days/month was started. The clinical and radiological follow up demonstrated a resorption of the hematoma. The patient is still alive at the eighth month of therapy.

Abdominal Pain↗
PubMed2004

Aase-Smith syndrome type II.

Aase-Smith syndrome type II is rare in childhood and there are few reported cases. Here, we report an 8-month-old boy with congenital red cell aplasia and triphalangeal thumbs. In addition to thumb anomalies, he presented with growth failure, hypertelorism and novel osseous radiologic abnormalities, large fontanelles and micrognathia as extraordinary. Some clinical symptoms had complete clinical remission with deflazacort treatment.

Abnormalities, Multiple↗
PubMed2003

Non-Hodgkin's lymphoma in southeast Turkey: clinicopathologic features of 490 cases.

We have carried out a retrospective analysis of 490 non-Hodgkin's lymphomas (NHLs), followed at our clinic, with the purpose of evaluating the clinicopathologic features of these patients. The patients were assessed with regard to their characteristics including age, gender, histologic distribution, stage, extranodal involvement, presenting symptoms, and biopsied site. Of the patients 314 (64%) were male and 176 (36%) were female. The overall median age was 43 years (range: 14-90). The patients were classified according to the Working Formulation (WF) system: 71 (14.4%) were low grade, 342 (69.8%) were intermediate grade, 43 (8.7%) were high grade, and 34 (6.7%) had other lymphomas. Intermediate-grade non-Hodgkin's lymphomas formed the largest group, of whom 320 patients' paraffin blocks were available for Revised European and American lymphoma (REAL) classification: 78% were B-cell lymphomas, whereas 16% were T/NK lymphomas. Six percent of cases were unclassified lymphomas. Diffuse large B-cell lymphoma (DLBCL) was the most commonly observed histopathologic type in 132 (41%) patients. Extranodal involvement was found in 218 (44.5%) patients. The most commonly affected extranodal sites were small bowel, stomach, and tonsil in 72 (33%), 63 (29%), and 19 (8.7%) patients, respectively. According to the Ann Arbor staging system, the vast majority of patients (89.4%) were advanced stage. In conclusion,The characteristics of NHLs in our region show some differences from the other sites of Turkey and the world.

Adolescent↗
PubMed2003

Hepatitis C virus in patients with non-Hodgkin's lymphoma in southeastern Anatolia region of Turkey: a prospective case-control study of 119 patients.

Hepatitis C virus (HCV) has been associated with several extrahepatic disorders including mixed cryoglobulinemia (MC), autoimmune thyroiditis, Sjogren's syndrome. Such associations have led to the suggestion that HCV may participate in the development of various immunmediated disorders. Recently, it has been hypothesised that HCV might act as a trigger for the development of monoclonal B-cell disorders such as non-Hodgkin's lymphoma (NHL). Discordant data have been reported in different geographic regions of the world. The aim of this prospective case-control study was to detect the prevalence of HCV in patients with NHL in southeastern Anatolia region of Turkey. In this study, HCV antibody prevalence and cryoglobulinemia were investigated in 119 patients with histologically diagnosed NHL. The control group consisted of 117 patients who visited the outpatient clinic of internal medicine. None of the patients had HCV antibody positive (0%) with the enzyme immunoassay and reverse transcriptase polymerase chain reaction (RT-PCR). One of the control patients had positive HCV antibody (0.9%). Our data does not support the association between HCV infection and NHL in southeastern Anatolia region of Turkey.

Adolescent↗
PubMed2002

A young adult with coronary artery and jugular vein thrombosis: a case report of combined protein S and protein C deficiency.

Protein C and protein S deficiencies increase the risk of thromboembolic events. We report a case of combined protein C and S deficiency in a young woman, with resulted in acute myocardial infarction and asymptomatic jugular vein thrombosis. The patient was treated successfully with coronary artery bypass graft surgery and systemic anticoagulation. Our report emphasizes that a combined deficiency of protein C and S may be a high risk factor for arterial thromboembolic events in young adults.

Adult↗
PubMed2002

Treatment of blastic phase chronic myeloid leukemia with mitoxantrone, cytosine arabinoside and high dose methylprednisolone.

Fourteen patients with blastic phase chronic myelogenous leukemia received combination chemotherapy with mitoxantrone 5 mg/m2 intravenously daily for 3 days, cytosine arabinoside 100 mg/m2 intravenously over 2 hours bid for 7 days and high dose methylprednisolone 1000 mg/day intravenously for 5 days. The patients' mean age was 52 +/- 10 (range 34-64) and Philadelphia chromosome was positive in all. Five patients (35%) achieved complete remission and four patients (28%) had a partial remission. Overall remission rate was 64%. The mean survival was 11.1 +/- 8.6 months (median 13) for all patients, 19.4 +/- 4.0 months (median 19) for those achieving a complete remission, 12.50 +/- 5.7 months (median 14) for patients with partial remission and 1.8 +/- 1.8 months (median 2) for the unresponsive patients. Two of 5 unresponsive patients died early after the second course of remission induction. The treatment regimen was generally well tolerated. Marrow hypoplasia was observed in 9 (64%) patients and 7 (50%) had febrile episodes. Non-myelosupressive toxicity of the regimen was acceptable. Nausea and vomiting were observed in 8 (57%) patients and 3 (21%) patients developed flushing due to cytosine arabinoside. These results suggest that the regimen with mitoxantrone, cytosine arabinoside and high dose methylprednisolone in remission-induction of blastic phase chronic myelogenous leukemia may be a valid option that may also improve overall prognosis.

Adult↗
PubMed2002

Hodgkin's disease variant of Richter's transformation: a case report.

Hodgkin's disease rarely develops in patients with B-chronic lymphocytic leukemia. Patients developing Hodgkin's disease after the diagnosis of chronic lymphocytic leukemia have been called the "Hodgkin's disease variant of Richter's transformation." We present a 62-yr-old man with a 17-mo history of chronic lymphocytic leukemia, who clinically and hematologically on remission was admitted to our clinic because of rapidly developing right cervical lymphadenopathy. He was diagnosed with lymph node biopsy as a mixed-cellularity Hodgkin's disease.

Fatal Outcome↗
PubMedDate not supplied

Type III mixed cryoglobulinemia associated with digital necrotic ulcer successfully treated with intermittent intravenous pulse cyclophosphamide--a case report.

Cryoglobulinemic vasculitis is an immune complex-mediated vasculitis predominantly affecting small vessels. The authors report an 18-year-old woman with painful digital necrotic ulcer due to type III cryoglobulinemic vasculitis on the basis of systemic lupus erythematosus. Serum protein electrophoresis and immunoelectrophoresis demonstrated a polyclonal peak of the immunoglobulin Glambda (IgGlambda) and IgMlambda type. The patient was successfully treated with intermittent intravenous pulse cyclophosphamide.

Adolescent↗
PubMedDate not supplied

Factor V Leiden mutation in venous thrombosis in southeast Turkey.

Venous thrombosis (VT) is a common disease, with an annual incidence in the general population of approximately 1 per 1,000. Factor V Leiden mutation (G1691A) (FVL) is the most common risk factor in venous thrombosis. The prevalence of FVL for thrombosis varies greatly in different regions of the world. FVL mutation has been identified both by conventional method and fluorescence resonance energy transfer (FRET) with the LightCycler. Sixty-one patients with VT, different in age and sex, were consecutively entered into this study to assess the prevalence of FVL in VT in southeast Turkey. FVL mutation was found in 24.6% (15/61). Fourteen individuals were heterozygous and 1 homozygous, a rate of 22.9% and 1.6%, respectively. In conclusion, the authors suggest that FVL mutation is common in patients with venous thrombosis in southeast Turkey.

Adolescent↗