background the transjugular intrahepatic portosystemic stent-shunt (tipss) builds a shortcut between the portal vein and a liver vein, and represents a sophisticated alternative to open surgery in the management of portal hypertension or its complications. objectives to describe clinical experiences with a low-profile nitinol stent system in tipss creation, and to assess primary and long-term s...

The purpose of this study is to determine the effects of variations in cardiac output upon the mean systolic left ventricular-brachial artery gradient in patients with aortic stenosis. The magnitude of this gradient varies with valve size, flow across the valve and possibly heart rate. The effect of these parameters has been investigated in patients with mitral stenosis. " 2 Since exertional dy...

According to a model of the turbulent boundary layer that we propose, in the absence of external turbulence the intermediate region between the viscous sublayer and the external flow consists of two sharply separated self-similar structures. The velocity distribution in these structures is described by two different scaling laws. The mean velocity u in the region adjacent to the viscous sublaye...