BackgroundTranscatheter aortic valve replacement (TAVR) continues to gain momentum with current-generation balloon-expandable (BE) Edwards SAPIEN 3 (Edwards Lifesciences, Irvine, CA) and self-expandable (SE) Medtronic Evolut valves (Medtronic, Minneapolis, MN). Safety efficacy of each device has been studied independently but head-to-head comparisons remain limited.MethodsThe institutional data...

The goal of achieving powerful problem solving capabilities leads to the “advice taker” form of program and the associated problem of control. This proposal outlines an approach to this problem based on the construction of problem solvers with advanced self-knowledge and introspection capabilities. 1 The Problem of Control Self-reverence, self-knowledge, self-control, These three alone lead lif...

We propose a new processing paradigm, called the Expandable Split Window (ESW) paradigm, for exploiting finegrain parallelism. This paradigm considers a window of instructions (possibly having dependencies) as a single unit, and exploits fine-grain parallelism by overlapping the execution of multiple windows. The basic idea is to connect multiple sequential processors, in a decoupled and decent...

Extracranial carotid artery dissection may manifest as arterial stenosis or occlusion, or as dissecting aneurysm formation. Anticoagulation and/or antiplatelet therapy is the first-line treatment, but because it is effective and less invasive than other procedures, endovascular treatment of carotid artery dissection has recently attracted interest. We encountered two consecutive cases of trauma...

To evaluate the potential utility of a self-expandable intratracheal nitinol stent with flared ends for the treatment of tracheal collapse in dogs, endotracheal stenting therapy was performed under fluoroscopic guidance in four dogs with severe tracheal collapse. During the 4 to 7 month followup, after stent implantation, clinical signs, including dyspnea and respiratory distress, dramatically ...

The use of self expandable metallic stents (SEMS) in the palliation of dysphagia due to malignant esophageal stenosis is a gold standard. Covered stents are used in all cases with overt air-digestive fistula or high potential for fistula development. The procedure is associated with a low incidence of procedure-related complications. We present a case with a major accident which developed durin...

PURPOSE To introduce a convenient, quick and effective way to place self-expandable metal stents (SEMSs) to relieve dysphagia and fistula caused by esophageal carcinoma. MATERIALS AND METHODS A consecutive series of 36 patients (25 men, 11 women), aged 38-82 years (median, 52.7 years) underwent stent placement using a 7F long sheath of 55 cm and fully covered SEMS under local anesthesia with ...

We report the results of a study investigating the age related differences as they relate to the depth versus breadth tradeoff in hierarchical online information systems. Different stimulus of various depth and breadth combinations and expandable or non-expandable structure were used. Participants from two age groups (aged 36 years old and younger or 57 years old and older) took part in this st...

(VADA) necessitates an urgent treatment to prevent a fatal early rebleeding (1-3). The endovascular procedure has been suggested as a rational approach in the management of acute ruptured VADAs (1-4). Although stent-assisted coil embolization has been introduced as an effective endovascular procedure for both durable aneurysmal occlusion and parent artery preservation, some limitations were rep...

The authors describe a newly developed expandable cannula to enable a more efficient use of an endoscope in removing intraparenchymal spontaneous hypertensive intracerebral hematomas. The cannula is introduced like a conventional brain cannula, using neuronavigation techniques to reach the targeted hematoma accurately, and, once deployed, conventional microsurgical techniques are used under dir...