We present a child with mild problems during haemodialysis due to stenosis of the proximal radial artery of his radiocephalic fistula. However, his problems spontaneously subsided. Follow-up sonography revealed arterial occlusion proximal to the fistula with retrograde flow in the distal segment. Kt/V and shunt flow were normal. Physical examination confirmed proximal radial artery occlusion wi...

purpose: to evaluate the vascular occlusion in coats’ disease   methods: in this non-comparative case series, 13 consecutive patients with coats’ disease from january 2011 to september 2011 were included. the hypercoagulability states were evaluated in these patients.   results: the mean age of the patients in this series was 15.4 years. all but one patient had high anti-cytomegalovirus antibod...

There is continuing controversy over the effects of nitroglycerin and nitroprusside on myocardial ischemia. In 36 open-chest, anesthetized dogs with normal left ventricular filling pressures, intramural carbon dioxide tension (PmCO2) was measured directly with a mass spectrometer during repeated 10-minute coronary artery occlusions separated by 45-minute periods of reflow. Simultaneously, regio...

The effect of repeated (3 to 10 second) and transient (15 to 75 second) abrupt coronary occlusion on the global and regional chamber stiffness was studied in nine patients undergoing angioplasty of a single proximal left anterior descending coronary artery stenosis. The left ventricular high fidelity pressure and volume relation was obtained before and after the procedure as well as during coro...

Acute occlusion of one common carotid artery in the anesthetized normocapnic rat results in a moderate cerebral blood flow (CBF) decrease in both cerebral hemispheres. No asymmetrical perfusion is observed when the overall flow in each hemisphere is considered. The increase in blood flow which normally occurs in hypercapnia is strongly impaired in the cerebral hemisphere on the occluded side re...

Doppler ultrasound was used to detect possible flow changes in the carotid arteries of patients with central retinal artery and vein occlusion. Twenty-three patients with central retinal artery occlusion (mean age 56, SD 11, years) were examined 4 to 48 months after the development of the occlusion and compared with age and sex matched control subjects with no history of any disease known to be...

Mice lacking the extracellular matrix protein microfibril-associated glycoprotein-1 (MAGP1) display delayed thrombotic occlusion of the carotid artery following injury as well as prolonged bleeding from a tail vein incision. Normal occlusion times were restored when recombinant MAGP1 was infused into deficient animals prior to vessel wounding. Blood coagulation was normal in these animals as as...

background: small side branches, albeit less important than their larger counterparts, have not yet received due attention in the literature. nor has there ever been a comparison between drug-eluting stents and bare metal stents apropos side branch occlusion . the aim of this study was to compare the patency of small (≥0.5 and ≤1.5 mm in diameter) side branches with respect to bare metal vs. dr...

Occlusion boundaries are notoriously difficult for many patch-based computer vision algorithms, but they also provide potentially useful information about scene structure and shape. Using short video clips, we present a novel method for scoring the degree to which edges exhibit occlusion. We first utilize a spatio-temporal edge detector which estimates edge strength, orientation, and normal mot...

The diagnosis and treatment of central retinal vein occlusion was reported in a young patient. Central retinal vein occlusion was probably related to secondary to reactive thrombocytosis after splenectomy. The patient was treated with steroids for papilledema and administered coumadin and aspirin. The symptoms resolved, and the findings returned to normal within three weeks. Current paper empha...