Impact of stroke etiology, lesion location and aging on post-stroke urinary incontinence as a predictor of functional recovery.

This retrospective study aims to assess the relationship of age, gender, lesion location, stroke etiology and recurrence of stroke to post-stroke urinary incontinence, and to evaluate its impact on functional recovery in patient subgroups with different etiologies, lesion locations and ages. One-hundred-and-sixty-three stroke patients participated in the study. Among them, 141 had detailed imaging tests for the definition of lesion locations.

Analysis of coronary flow fields in thoracotomized dogs.

A nonlinear theory of pulsatile flow was used to investigate the detailed flow field in the left circumflex coronary artery of anesthetized open-chest dogs. Studies were carried out under a wide range of blood pressures and flow rates induced by intravenous infusions of dipyridamole. The results indicated that (1) the flow profiles, although less blunt than those in the descending aorta, are still nonparabolic, (2) the wall shear in the coronary arteries maintains a high value through diastole, and (3) during intravenous infusions of dipyridamole both coronary flow and wall shear increase.

Wave propagation through a viscous fluid contained in a tethered, initially stresses, orthotropic elastic tube.

To give a realistic representation of the pulse propagation in arteries a theoretical analysis of the wave propagation through a viscous incompressible fluid contained in an initially stressed elastic tube is considered. The tube is assumed to be orthotropic and its longitudinal motion is constrained by a uniformly distributed additional mass, a dashpot and a spring. The fluid is assumed to be Newtonian.

Wave propagation through a viscous incompressible fluid contained in an initially stressed elastic tube.

To have a better understanding of the flow of blood in arteries a theoretical analysis of the pressure wave propagation through a viscous incompressible fluid contained in an initially stressed tube is considered. The fluid is assumed to be Newtonian. The tube is taken to be elastic and isotropic.