conclusion for more precise prediction of successful aavf maturation after spta, short-term follow-up doppler ultrasonography (< 2 weeks) was useful. if the asr was < 0.7 or if residual stenosis was ≥ 30%, immediate repeat spta is recommended. results the technical and clinical success rates were both 94.9% (56/59); the mean asr was 0.84. an asr of ≥ 0.7 and no significant residual stenosis (< ...

BACKGROUND Stroke is the major cause of disability and third major cause of death. Ischemia causes about 80% of stroke cases; stenosis and occlusion are the predominant cause of stroke. Our purpose for this study was to evaluate the pattern and distribution of stenosis and its association with risk factors in Indian ischemic stroke patients and in other countries, for comparison. MATERIAL/MET...

Fig. 2 Significant Renal Artery Stenosis Selective DSA demonstrates a significant renal artery stenosis (A, TSPG = 48mmHg. Streamlines discontinue at the stenosis indicating a significant luminal narrowing (B). Please note flow signal distal to the stenosis indicating high degree stenosis but excluding occlusion. Non-invasive Assessment of Transstenotic Pressure Gradients Utilizing 3D Phase Con...

currently, myocardial ti-201 scintigraphy is most often performed in conjunction with exercise stress testing in patients with suspected or known cad. stress thallium tests were performed for 156 patients with and without old myocardial infarctions complaining of chest pain. all of them underwent contrast coronary angiography. perfusion defects were mostly manifested as reversible defects (r). ...

Vestibular stenosis is an uncommon but debilitating cause of nasal obstruction leading to serious impairment airway. It caused by granulation and fibrosis vestibular lining there circumferential scar retraction in the inlet cavities. Stenosis may be congenital or acquired. Causes acquired include burns, trauma, infections, iatrogenic insult vestibule. Surgical correction usually done excision f...

BACKGROUND Collateral pathways are important in maintaining adequate cerebral blood flow in patients with carotid stenosis. We aimed to evaluate the hemodynamic patterns in relation to carotid stenosis in acute stroke patients. METHODS Consecutive 586 stroke patients in a hospital based cohort were included in the present study. Carotid duplex was performed to identify patients with absolute ...

Hemodialysis access stenosis is a pervasive problem that occurs due to the physiology of high-flow circuit. Stenosis endothelial and smooth muscle injuries result in neointimal hyperplasia. Percutaneous transluminal angioplasty standard treatment for dialysis access-induced stenosis. Unfortunately, it also associated with vessel wall trauma, which causes further intimal hyperplasia restenosis. ...

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...

familial hypercholesterolemia (fh) is a hereditary dislipidemia. patients present with extremely high level of low-density lipoprotein cholesterol (ldl-c), which is due to mutation in the gene of ldl receptor. homozygous patients (hofh) whose incidence is 1 in 1.000.000 are at high risk of premature aortic valve stenosis, and coronary artery atherosclerosis. in homozygous individuals cardiovasc...