BACKGROUND Accurate carotid imaging is important for effective secondary stroke prevention. Non-invasive imaging, now widely available, is replacing intra-arterial angiography for carotid stenosis, but the accuracy remains uncertain despite an extensive literature. We systematically reviewed the accuracy of non-invasive imaging compared with intra-arterial angiography for diagnosing carotid ste...

the vascular complications, their management and results of treatment in 417 consecutive renal transplantations performed at taleghani hospital from september 1989 to december 1997, are presented. there were 7 (1.6%) vascular complications. among them renal artery stenosis occurred in 2 cases (0.4%), renal artery thrombosis in 2 cases (0.4%), renal vein thrombosis in one case (0.2%), bleeding f...

Percutaneous balloon angioplasty has been found to be useful for the treatment of intracranial atherosclerotic arterial stenosis. Nonetheless, an ongoing risk of this procedure is arterial dissection, which increases the hazards of acute closure, stroke, and restenosis. Stenting of the intracranial vasculature recently has been shown to be feasible in a variety of circumstances. To our knowledg...

Vascular closure devices provide a safe and cost-effective method to achieve rapid hemostasis and early ambulation after angiographic procedures. Rarely, they can result in arterial injury with resultant stenosis or acute arterial closure requiring open surgical intervention. We report an Angio-Seal® vascular closure device-induced acute arterial closure successfully treated percutaneously with...

The relationship between hemodynamic abnormalities and disability was studied with paired cardiac catheterizations nine to 69 months apart in ten patients with mitral stenosis. Left atrial and pulmonary arterial pressures and pulmonary vascular resistance increased in each patient; however, there was no consistent relationship between the progression of symptoms and the palmonary vascular resis...

Eleven patients with mitral stenosis and atrial fibrillation were studied during artificially induced tachycardia to determine the influence of rapid ventricular rates on hemodynamic variables. Significant elevation of pulmonary artery pressure occurred, but no increase in calculated pulmonary arterial resistance was found. Pulmonary arterial wedge pressures rose in each patient with an average...

AIMS Little is known about the medium term results after stenting of the arterial duct in neonates and infants with duct-dependent cyanotic congenital heart disease. We report the results of stent implantation of the arterial duct in 21 neonates and infants. The defects for which the arterial duct was stented included pulmonary atresia with intact ventricular septum, critical pulmonary stenosis...

BACKGROUND The purpose of our study was to study the relevance of a systematic aorto-femoral colour Doppler ultrasound (DUS) in the evaluation of first renal transplant receivers. METHODS We prospectively studied 100 consecutive first renal transplant (RT) receivers. All patients had a preoperative physical examination with a careful vascular system evaluation including assessment of risk fac...

Balloon dilatation in infants with severe pulmonary valve stenosis may not be a straightforward procedure once the arterial duct has closed. Balloon dilatation was attempted in three neonates and infants. In an 11 week old infant hypotension and bradycardia developed shortly after a 5 French end hole catheter was passed through the severely stenosed pulmonary valve. An emergency Waterston shunt...

hypertension in and a higher mean age of our patients. The arterial pressure is increased in the artery proximal to the bridge and the blood flow pattern also changes. These factors, in turn, could cause tension on the arterial intima and may cause or worsen preexisting atherosclerosis[5]. Though hypertension is one of the factors for the formation of atherosclerosis, it is not the direct cause...