72 research outputs found
Klippel-Trenaunay sendromunda rektal vasküler malformasyonlara bağlı alt gastrointestinal kanama
No full textEosinofilik gastointestinal hastalıklar: Eosinofilik gastro intestinal hastalıkların görülme yaşı küçülüyor mu?
No full text Eozinofilik gastrointestinal hastalıklar gastrointestinal kanalın eozinofilik infiltrasyonu ile karakterizedir. Hastalığın belirtileri etkilenen sindirim segmentine ve sindirim kanalının farklı tabakalarının tutulumuna bağlı olarak değişiklik gösterir. Eozinofilik gastrointestinal hastalıklar, eozinofilik özofajit, eozinofilik gastroenterit ve eozinofilik kolit gibi alt gruplara ayrılır. Eozinofilinin yerleşimine bağlı olarak mukozal, serozal ya da müsküler hastalık olarak gruplamak mümkündür. Mukozal hastalıklar bunların arasında en yaygın olanıdır. Eozinofilik özofajitli hastalar hazımsızlık, kusma, disfaji şikayetleri gösterirken, eozinofilik gastroenterit hastaları karın ağrısı, ishal ve kanlı dışkılama şikayetlerine sahiptir. Eozinofilik kolitli hastalarda ise tipik olarak ishal ve alt kadran ağrısı şikayetlerine rastlanır. Hastalık tipik olarak 3. ve 5. dekatlarda görülmekle birlikte diğer yaş gruplarında da görülebilir. Ana tedavi seçenekleri arasında steroid ve diyet değişikliği vardır. 2011 ile 2012 yılları arasında çocuk gastroenteroloji bölümümüzde 4 hastaya eozinofilik gastrointestinal hastalık tanısı konuldu. Bunlardan 2 tanesi eozinofilik özofajit, 1 tanesi eozinofilik kolit, diğeri ise eozinofilik proktokolit tanısı aldı. Bu makalede eozinofilik gastrointestinal hastalık tanısı almış çocuk hastalarımız güncel çalışmalar ışığında gözden geçirildi. Eosinophilic gastrointestinal disorders constitute a pathology characterized by eosinophilic infiltration of the gastrointestinal tract, the symptoms of which vary depending on the affected digestive segments and the involvement of the different layers of the digestive wall. Eosinophilic gastrointestinal diseases include subcategories such as eosinophilic esophagitis, eosinophilic gastroenteritis and eosinophilic colitis, and depending on the localization of the eosinophilia, it is possible to group them as mucosal, serosal or muscular disease. Mucosal involvement is the most common. Patients with eosinophilic esophagitis suffer from nutrition intolerance, vomiting, and dysphagia; for patients with eosinophilic gastroenteritis, complaints are abdominal pain, diarrhea and blood in stool; and for patients with eosinophilic colitis, they are typically diarrhea and lower quadrant pain. The disease is typically observed in but not limited to the 3rd to 5th decades. The main therapeutic options include steroids and dietary modification. Between 2011 and 2012, 4 patients were diagnosed in our pediatric gastroenterology department. Two were diagnosed with eosinophilic esophagitis, one with eosinophilic colitis and one with eosinophilic proctocolitis. This study aimed to review eosinophilic gastrointestinal diseases in light of the recent studies, referring to children diagnosed with eosinophilic gastrointestinal diseas</p
Notched Beam Test for SHCC-Concrete Interface
No full textThe number of hybrid concrete structures is increasing due to the need for repairing/strengthening existing structures and the development of new hybrid concrete systems. The structural response of these hybrid structures might be governed by the strength of the interface between the two concretes, making it essential to characterize the mechanical response of the interface. In this research, a notch beam tests is proposed to investigate the structural behavior of the interface. Hybrid beams consisting of Strain Hardening Cementitious Composites (SHCC) and conventional concrete are designed with a notch at mid-span and are tested under a four-point bending configuration. The effect of interface treatment (i.e. surface roughness) and the curing condition is tested using two sets of hybrid beams. The first set has three beams which are cured in sealed conditions until the day of testing and the interface is varied between smooth, profiled and roughened. The second set has two beams with smooth interface where one beam is seal cured and the other one is exposed to drying in the laboratory. The opening of the interface is visualized using Digital Image Correlation (DIC) and quantified using Linear Variable Differential Transformers (LVTDs) during testing of the hybrid beams. It is observed that increasing the roughness of the interface leads to higher load-bearing capacity and controlled opening of the interface. The beam exposed to drying showed somewhat reduced capacity, possibly due to the pre-damage caused by differential shrinkage of the two concretes.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Concrete Structure
A rare cause of acute mesenteric ischemia: JAK2 positivity and chronic active hepatitis
No full textShort bowel syndrome occurs as a result of insufficiency in the total length of the small intestine to provide adequate supply of nutrients. Seventy-five percent of cases are due to massive intestinal resection. A 35-year-old male complaining of abdominal pain was admitted to the gastroenterology department. A CT scan was performed, showing total occlusion of the portal vein and superior mesenteric vein. During the operation, widespread edema and necrosis of the small intestine were found. The necrotic segments of the small intestine were resected. The spleen was larger than normal and, in some parts, infarcts were evident, thus asplenectomy was also performed during surgery. A second-look procedure was performed 24 hours later, and an additional 10 cm jejunal resection and anastomosis was performed. His further evaluations revealed myeloproliferative disease and chronic active hepatitis B leading to thrombosis. Essential thrombocytosis and portal vein thrombosis are common in hepatitis B infection. Patients with complaints of abdominal pain in the context of essential thrombocytosis and hepatitis B should be handled with caution as they are at risk of developing portal vein thrombosis
Obstructive chronic pancreatitis with transient eosinophilia in a 13-year-oldchild
No full text Çocuklarda pankreatik kanalın, doğumsal veya edinsel darlığının bir sonucu olarak obstrüktif kronik pankreatit ortaya çıkar. Belirgin histolojik değişiklikler periduktal fibrozis ve geri kalan duktal alanda genişlemelerle karakterizedir. Tanıda genellikle endoskopik retrograd kolanjiopankreatikografi, ultrasonografi ve pankreatik fonksiyon testleri gibi yöntemler kullanılmaktadır. Eozinofili sıklıkla alerjik rinit, astım, parazitik enfeksiyonlar ve ilaç reaksiyonu ile ilişkilidir. Seyrek olarak da kronik obstrüktif pankreatik hastalıklarda tarif edilmiştir. Bu makalede; karın ağrısı ile başvuran kronik obstrüktif pankreatitli bir olguyu sunuyoruz. Olgumuzda, pankreatit semptomları ve eozinofili pankreasa stent yerleştirilmesi ile düzelmiştir. Anahtar kelimeler: Kronik pankreatit, eozinofili, çocuk Obstructive chronic pancreatitis in children occurs as a result of congenital or acquired stricture of the pancreatic duct. The prominent histologic changes are characterized by periductal fibrosis and subsequent ductal dilatation. Diagnosis is usually made by imaging studies such as endoscopic retrograde cholangiopancreaticography, ultrasonography, and pancreatic function testing. Eosinophilia is frequently associated with allergic rhinitis, asthma, parasitic infections, and drug reactions. It has been infrequently described with chronic obstructive pancreatic diseases. In this article, we present a patient with eosinophilia and abdominal pain with chronic obstructive pancreatitis. In our case, the symptoms of pancreatitis and eosinophilia improved with pancreatic stent placement. Keywords: Chronic pancreatitis, eosinophilia, child </p
Wind Turbine Effects on Radar Performance
No full text21st Signal Processing and Communications Applications Conference (SIU) --APR 24-26, 2013 -- CYPRUSÇolak, M. Alper (Arel Author), Bölükbaş, Deniz (Arel Author) --- WOS: 000325005300275As one of the renewable energy sources, wind energy has received great attention in Turkey as in the rest of the world in the last decade. Despite of this trend, there is an increasing number of assessment reports stating the impact of wind farms on the performance degradation of electromagnetic propagation systems. In this paper, wind turbines' effects on radar detection performance are investigated using radar data which we constructed using a real terrain scenario and two-dimensional propagation analysis employing different numerical electromagnetic techniques
The possible relationship between Campylobacter spp./Arcobacter spp. and patients with ulcerative colitis
No full textBackground and aimsThe role of bacterial infection in the pathogenesis of ulcerative colitis (UC) is under investigation. This study aims to (i) determine the prevalence of Campylobacter spp. and Arcobacter spp. in patients with UC, (ii) identify the antibiotic susceptibility of isolated agents, and (iii) investigate the role of these microorganisms in the pathogenesis and/or activation of UC.Patients and methodsEighty patients with UC and 40 healthy individuals were included in the study. Stool samples were used for cultural examination. Direct plating, membrane filtration, and enrichment methods were used for isolation. 16s rRNA sequence analysis was used for definitive identification of isolates that were identified phenotypically.ResultsIn the UC group, 20 (25%) patients had proctitis, 40 (50%) patients had left-type involvement, and 20 (25%) patients had extensive involvement. Campylobacter spp. were isolated from four (5%) patients in the UC group and isolates were identified as C. curvus, C. concisus, C. sputorum, and C. jejuni. C. concisus and C. jejuni were found to be resistant to ciprofloxacin, levofloxacin, and trimethoprim-sulfamethoxazole. C. jejuni was also resistant to tetracycline. All samples were negative for Arcobacter spp. The samples from the control group neither showed the presence of Campylobacter spp. nor Arcobacter spp.ConclusionGiven the clinical, endoscopic, and bacteriological examination results, it is believed that Campylobacter spp. are agents that cause flare-up clinically by being superimposed on the primary disease, rather than agents that initiate the disease in patients with UC. Arcobacter spp., which are known to cause acute gastroenteritis, were not found to be associated with UC
Birinci basamak sağlık çalışanlarında irritabl barsak sendromu prevalansı ve ilişkili faktörlerin belirlenmesi
No full textGeneral Characteristics and Prognostic Factors on Survival inNeuroendocrine Tumor Patients Diagnosed with CarcinoidSyndrome: Erciyes Multidisiplinary Neuroendocrine Tumor(NET) Group Experience
No full textThe prevalence and related factors with irritable bowel syndrom in Primary Health Care workers Kayseri, Turkey
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