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Spontaneous gastrojejunal fistula is a complication of gastric ulcer

World Journal of Gastroenterology 2007年第3期13卷 483-485页

作者： dorde m ulafi Olivera D mateji Vladimir S Duki miodrag D Vukevi mirko D Kerkez Clinic of Gastroenterology and Hepatology Institute of Digestive Diseases Clinical Center of Serbia Medical FacultyBelgradeSerbia Clinic of Surgery Institute of Digestive Diseases Clinical Center of SerbiaMedical FacultyBelgradeSerbia Institute of Pulmonary Diseases Clinical Center of SerbiaMedical FacultyBelgradeSerbia

Spontaneous gastrojejunal fistula formation is an extremely rare complication of gastric ulcer disease. We report a 77-year old woman who presented with diffuse abdominal pain, weight loss, malaise, nausea, and occasional dark stools. Laboratory tests showed extreme hyposideremic anemia with inflammatory syndrome. In addition, biochemical parameters of malnourishment were presented. Upper endoscopy revealed the patent esophagus along the full length without any pathological changes. Large and deep ulceration with perforation in the small intestine was detected in the posterior gastric wall. The small intestine loop was reached by endoscope through spontaneously developed gastrojejunal fistula. Polytopic biopsies of described ulcerative change were carried out. Histopathologically reepithelialized ulcerous zone was seen in the gastric mucosa. Also, gastrojejunal fistula was visualized after wide opening of hepatogastric and gastrocolic ligament. Jejunal loop 25 cm from ligament of Treitz was attached to mesocolon and posterior gastric wall because of ulcer penetration. Postoperative course was uneventful, Per oral intake started on the 4^th postoperative day, and the patient was discharged on the 8^th postoperative day. In summary, this case indicates that persistent symptoms of peptic ulcer disease associated with nutritional disturbances may be caused by gastrojejunal fistula.

关键词： Gastric ulcer Spontaneous Gastrojejunal fistula

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Role of serotonin in development of esophageal and gastric fundal varices

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World Journal of Gastroenterology 2010年第48期16卷 6135-6138页

作者： Jelena S Rudi dorde m ulafi Duko S mirkovi Rada S Jei miodrag N Krsti Clinic of Gastroenterology Clinical Center of SerbiaFaculty of MedicineUniversity of Belgrade Centre of medical Biochemistry Clinical Center of SerbiaSchool of PharmacyUniversity of Belgrade

AIm:To determine the effect of free serotonin concentrations in plasma on development of esophageal and gastric fundal varices. mETHODS:This prospective study included 33 patients with liver cirrhosis and 24 healthy controls. Ultrasonography and measurement of serotonin concentration in plasma were carried out in both groups of subjects. The upper fiber panendoscopy was performed only in patients with liver cirrhosis. RESULTS:The mean plasma free serotonin levels were much higher in liver cirrhosis patients than in healthy controls (219.0 ± 24.2 nmol/L vs 65.4 ± 18.7 nmol/L,P ma and the size of the esophageal varices according to Spearman coefficient of correlation (rs =-0.217,P > 0.05). However,the correlation of plasma serotonin concentration and gastric fundal varices was highly significant (rs =-0.601,P ment of fundal varices,indicating the clinical value of serotonergic receptor blockers in these patients.

关键词： Serotonin Portal hypertension Esophageal varices Fundal varices Platelets

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A study of pulmonary embolism after abdominal surgery in patients undergoing prophylaxis

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World Journal of Gastroenterology 2009年第3期15卷 344-348页

作者： mirko D Kerkez dorde m ulafi Dragana D mija Vitomir I Rankovi Nebja S Leki Dejan Z Stefanovi Clinic of Surgery Institute of Digestive Diseases Clinical Center of SerbiaMedical Faculty11000 BelgradeRepublic of Serbia Clinic of Gastroenterology and Hepatology Institute of Digestive DiseasesClinical Center of SerbiaMedical Faculty11000 BelgradeRepublic of Serbia

AIm： To determine risk factors for pulmonary embolism and estimate effects and benefits of prophylaxis. mETHODS： We included 78 patients who died subsequently to a pulmonary embolism after major abdominal surgery from 1985 to 2003. A first, retrospective analysis involved 41 patients who underwent elective surgery between 1985 and 1990 without receiving any prophylaxis. In the prospectively evaluated subgroup, 37 patients undergoing major surgery between 1991 and 2003 were enrolled： all of them had received a prophylaxis consisting in lowmolecular weight heparin, given subcutaneously at a dose of 2850 IU AXa/0.3 mL （body weight 〈 50 kg） or 5700 IU AXa/0.6 mL （body weight ≥ 50 kg）. RESULTS： A higher incidence of thromboembolism （43.9% and 46.34% in the two groups, respectively） was found in older patients （〉 60 years）. The incidence of pulmonary embolism after major abdominal surgery in patients who had received the prophylaxis was significantly lower compared to the subjects with the same condition who had not received any prophylaxis （P 〈 0.001, OR = 2.825; 95% CI, 1.811-4.408）. Furthermore, the incidence of pulmonary embolism after colorectal cancer surgery was significantly higher compared to incidence of pulmonary embolism after other abdominal surgical procedures. Finally, the incidence of pulmonary embolism after colorectal cancer surgery among the patients who had received the prophylaxis （11/4316, 0.26%） was significantly lower compared to subjects undergoing a surgical procedure for the same indication but without prophylaxis （10/1562, 0.64%）（P 〈 0.05, OR = 2.522; 95% Ct, 1.069-5.949）. CONCLUSION： Prophylaxis with low molecular weight heparin is highly recommended during the preoperative period in patients with diagnosis of colorectal cancer due to high risk of pulmonary embolism after elective surgery.

关键词： Pulmonary embolism Surgery Colorectal cancer Risk factor Prevention

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Domino Tiling:A New method of Real-Time Conforming mesh Construction for Rendering Changeable Height Fields

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Journal of Computer Science & Technology 2011年第6期26卷 971-987页

作者： dorde m. Durdevi Igor I. Tartalja School of Electrical Engineering University of Belgrade

In this paper we present a novel GPU-oriented method of creating an inherently continuous triangular mesh for tile-based rendering of regular height fields. The method is based on tiling data-independent semi-regular meshes of non-uniform structure, a technique that is quite different from other mesh tiling approaches. A complete, memory efficient set of mesh patterns is created by an off-line procedure and stored into the graphics adapter＇s memory at runtime. At rendering time, for each tile, one of the precomputed mesh patterns is selected for rendering. The selected mesh pattern fits the required level of details of the tile and ensures seamless connection with other adjacent mesh patterns, like in a game of dominoes. The scalability potential of the proposed method is demonstrated through quadtree hierarchical grouping of tiles. The efficiency is verified by experimental results on height fields for terrain representation, where the method achieves high frame rates and sustained triangle throughput on high resolution viewports with sub-pixel error tolerance. Frame rate sensitivity to real-time modifications of the height field is measured, and it is shown that the method is very tolerant and consequently well tailored for applications dealing with rapidly changeable phenomena represented by height fields.

关键词： graphics data structures and data types height field surface representation level of details real-time heightfield manipulation view-dependent rendering

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Effect of Phosphorus and Potassium Foliar Treatment on Seed Yield and Yield Components of Red Clover （ Trifolium pratense L.） Cultivars

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Journal of Agricultural Science and Technology(B) 2014年第10期4卷 766-770页

作者： Dalibor Tomic Vladeta Stevovic Dragan Durovic dorde Lazarevic Rade Stanisavljevic Faculty of Agronomy University of Kragujevae Cara Dusana 34 Cacak 32000 Serbia Institute for Plant Protection and Environment Teodora Drajzera 9 Beograd 11000 Serbia

Proper mineral nutrition of red clover especially on the acid soils is a prerequisite for the realization of maximum potential for seed yield. The field experiment with four cultivars of red clover were established on soil having a pH （in H2O） of 4.8, in order to in conditions of dense planting （20 cm inter row） analyzes the effect of foliar application of phosphorus and potassium （PK） on yield and yield components （number of stems/m2, number of inflorescences/m2, number of inflorescences/stem, number of flowers/inflorescence, number of seeds/inflorescence and one thousand grain weight）. Regardless of foliar treatment with PK, varieties differed in the number of inflorescences/m2, number of flowers/inflorescence, number of seeds/inflorescence and seed yield. Foliar application of PK in the phase of intensive growth of red clover had a positive impact on number of stem/m2, number of inflorescences/m2 and seed yield in all varieties, as well as on the number of flowers/inflorescence, number of seeds/inflorescence in cultivar Viola.

关键词： Red clover phosphorus potassium seed yield yield components.

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