in the present study, the nonlinear model of non-newtonian blood flow in cosine-shape stenosed elastic artery is numerically examined. the model is carried out for axisymmetric, two-dimensional and fully developed blood flow. the vessel wall is assumed to be have time-dependent radius that is important factor for study of blood flow. the cosine-shape stenosis convert to rigid artery by using a ...

Introduction: Laryngotracheal stenosis can be caused after traumatic injuries to the neck from the subglottic larynx to the trachea. Patients with laryngotracheal stenosis often need a tracheotomy and occasionally may become tracheotomy dependent. Different procedures have been described for the management of these lesions. Management options include techniques of endoscopic dilation, laser res...

Anne Abbott emphasises our finding that ipsilateral stroke risk is dependent on the degree of asymptomatic carotid artery stenosis.1 states this association was reported previously in ACSRS study, which she an author.2 In fact, only a non-significant correlation towards increased with stenosis found but as we showed systematic review, other much earlier studies had already more convincing corre...

introduction: laryngotracheal stenosis can be caused after traumatic injuries to the neck from the subglottic larynx to the trachea. patients with laryngotracheal stenosis often need a tracheotomy and occasionally may become tracheotomy dependent. different procedures have been described for the management of these lesions. management options include techniques of endoscopic dilation, laser res...

In the present study, the nonlinear model of non-Newtonian blood flow in cosine-shape stenosed elastic artery is numerically examined. The model is carried out for axisymmetric, two-dimensional and fully developed blood flow. The vessel wall is assumed to be have time-dependent radius that is important factor for study of blood flow. The cosine-shape stenosis convert to rigid artery by using a ...

With an aim to investigate the effect of externally imposed body acceleration on two dimensional,pulsatile blood flow through a stenosed artery is under consideration in this article. The blood flow has been assumed to be non-linear, incompressible and fully developed. The artery is assumed to be an elastic cylindrical tube and the geometry of the stenosis considered as time dependent, and a co...

Prospective, population-based study (Oxford Vascular Study) between April 1, 2002, and 2017, a systematic review using MEDLINE, Embase, the Cochrane Central Register of Controlled Trials January 1980, October 2020. In study, patients with 70% to 99% asymptomatic stenosis had significantly greater 5-year ipsilateral stroke risk (15% [6/53]) than those 50% 69% (0% [0/154]), as did 80% (18% [6/34]...

An 18-yr-old man with insulin-dependent diabetes developed severe subglottic stenosis after a very brief period of intubation. Emergency tracheostomy was complicated by the development of bilateral pneumothoraces. This case highlights the importance of making an early diagnosis to minimize the risk of complications and examines postintubation subglottic stenosis in the context of poorly control...

background: atherosclerotic renal artery stenosis (aras) remains underdiagnosed due to its nonspecific demonstrations. we aimed to both estimate the frequency of aras in high-risk non-selected patients undergoing simultaneous coronary and renal catheterization and possibly identify a predictive model for aras using baseline clinical, laboratory, and coronary angiographic variables. methods: the...