Cerebral arterial stenosis is a major cause of stroke and of insufficient blood supply to the vertebral basilar system. Percutaneous transluminal cerebral angioplasty and stenting (PTCAS) have been used to preliminarily treat vertebrobasilar stenosis. However, the feasibility to treat the posterior cerebral arterial stenosis by PTCAS has not been fully established. We report a case of a 64-year...

BACKGROUND AND PURPOSE Our goal was to investigate whether initial ischemic lesion pattern can predict stroke recurrence in patients with symptomatic intracranial arterial stenosis. METHODS Of the Trial of Cilostazol in Symptomatic Intracranial Arterial Stenosis (TOSS)-2 trial participants, we included patients who underwent diffusion-weighted imaging and fluid attenuation inversion recovery ...

N 1962, we 1 published a report on the value of the comparative Usodium/Ucreatinine ratio in the diagnosis of hypertension due to renal arterial stenosis. This ratio is defined as the proportional relation between the concentration of sodium and creatinine (U5Odiu./Ucreatinine) in the urine issuing simultaneously from each ureter. We also suggested that routine performance of dehydrated-hydrate...

Brock (1957, 1959) using the term "Functional obstruction of the left ventricle" was the first to describe muscular subaortic stenosis. Since then, a number of reports (Bercu et al., 1958; Morrow and Braunwald, 1959; Brent et a!., 1960; Goodwin et al., 1960; Braunwald et al., 1960; Brachfeld and Gorlin, 1959, 1961; Pare et al., 1961; Boiteau and Allenstein, 1961) have appeared concerning this c...

Intra-aneurysmal pressure was studied in an experimental model of saccular aneurysm in dogs, using a vein pouch grafted onto a common carotid arterial bifurcation. The mean and the pulse pressures were recorded simultaneously from within the aneurysm and within the common carotid artery, before and after 50% proximal carotid artery stenosis. These experiments were performed under systemic normo...

In developed countries, stenosis is the main cause of death. To investigate hemodynamics within different degrees stenoses, a model incorporating fluid–structure interaction and microcirculation function used in this paper. Microcirculation treated as seepage outlet boundary condition. Compliant arterial wall considered. Numerical simulation based on performed using finite element method. Our r...

INTRODUCTION Pulmonary stenosis remains the most frequent complication and cause of reintervention after the arterial switch operation for transposition of the great arteries We investigated the onset, incidence, and outcome of pulmonary stenosis after arterial switch operation in neonates with transposition of the great arteries and intact ventricular septum. METHODS Arterial switch operatio...

Abstract The paper deals with a theoretical study on blood flow in stenosed segment of an artery, when is mixed nano-particles. Blood treated here as couple stress fluid. Stenosis known to impede and be the cause different cardiac diseases. Since arterial wall weakened due stenosis, it may lead dilatation /aneurysm. homotopy perturbation technique employed determine solution problem for case mi...

OBJECTIVE To assess the efficacy of arterial duct angioplasty in maintaining adequate ductal patency in neonates with critical pulmonary valve stenosis. PATIENTS Two neonates presenting with cyanosis due to critical pulmonary valve stenosis with severe right ventricular hypoplasia underwent percutaneous balloon dilatation of the pulmonary valve. Despite successful dilatation, both remained cy...