abstract bowel obstruction is a known complication after bariatric surgery especially roux-en-y gastric bypass. the known etiologies include internal hernia, jejunojejunostomy stricture, ileus, intussusceptions, superior mesenteric artery syndrome, incarcerated port site hernia, and adhesions. blood clot is a rare cause of small intestinal obstruction after laparoscopic roux-en-y gastric bypass...

Vertical silos are large cylinders used for material storage in agriculture and mineral industries. One of the silo problems is its obstruction due to dome and dense packing. Depend on the material properties and silo dimensions several techniques are used to solve this problem. In the present work, possibility of obstruction solution of a laboratory silo by ball impact is investigated. Test ma...

purpose:  to determine the safety and efficacy of mitomycin-c injection into the lacrimal duct for treatment of partial nasolacrimal duct obstruction in adults. method: this is a before-after clinical trial performed on 20 patients with partial primary acquired nasolacrimal duct obstruction. we injected 1.5 ml of mitomycin-c 0.2 mg/ml into the lacrimal duct and repeated it with concentration of...

reinforced tubes are commonly used to minimize the opportunity of upper airway obstruction in patients at risk. there are a few reports of the airway obstruction resulted from kinked reinforced tubes. this report describes the obstruction of a reinforced tube in an adult patient who underwent tonsillectomy. under general anesthesia; an armoured endotracheal tube was inserted into the trachea un...

A case of obstruction of the colon by a solitary, large gall-stone is described. This rare event usually occurs in elderly females in whom there is frequently an underlying pathological condition at the site of obstruction in the colon. The calculus usually migrates via a cholecystocolic fistula. Diagnosis may be assisted by plain abdominal X-ray and contrast radiography. Immediate operative tr...

A 4-year-old female native goat with the history of inappetence and no defecation was referred to the Department of Clinical Sciences, School of Veterinary Medicine of Shiraz, Shiraz, southern Iran. During exploratory laparotomy, pyloric obstruction and displacement of the abomasum to the left side was observed. Obstruction of pylorus was due to a ball-shaped phytobezoar. The goat was followed ...

gastric bezoars are gastric masses, which rarely cause intestinal obstruction by passing through the small bowel. in this article, we report a 56 year-old man with no history of gastric surgery who presented with intestinal obstruction. the obstruction seemed to be in terminal ileum. colonoscopy was done and a movable mass was noted, which was extracted from the cecum by colonoscope resulting i...

How can the classical psychological laws be explained and unified? It is proposed here that scale-invariance is a unifying principle. Distributions of many environmental magnitudes are observed to be scale invariant; that is, the statistical structure of the world remains the same at different measurement scales [Mandelbrot, B., 1982. The Fractal Geometry of Nature (2nd Edn.). W.H. Freeman, San...

We report two patients with adenocarcinoma at angle of treitz who presented with upper GI(gastrointestinal) obstruction and underwent segmental resection of duodeno-jejunal junction. Preoperative investigations failed to reveal the nature of the lesion suggesting the elusive nature of these lesions, importance of clinical suspicion and decision-making.