نتایج جستجو برای: native aortic coarctation
تعداد نتایج: 213869 فیلتر نتایج به سال:
The aortas in 41 specimens of aortic atresia (ten with associated mitral atresia) were studied for the presence of coarctation of the aorta. The basic lesion, causing varying degrees of obstruction, was observed in 31 instances (75%), 24 minor, seven with major degrees of obstruction. In half, the aortic lesion lay proximal to the ductus, and in the majority of the remainder, opposite the ductu...
BACKGROUND We report a multi-institutional experience with intravascular stenting (IS) for treatment of coarctation of the aorta. METHODS AND RESULTS Data was collected retrospectively by review of medical records from 17 institutions. The data was broken down to prior to 2002 and after 2002 for further analysis. A total of 565 procedures were performed with a median age of 15 years (mean=18....
Angiología es una revista científica bimensual editada desde 1949. Está dedicada al estudio de las enfermedades vasculares, incluyendo todos los aspectos la medicina vascular, el diagnóstico no invasivo, tratamiento quirúrgico tradicional arterial y venoso, así como mínimamente invasivo y/o endovascular.
OBJECTIVE The aim of this study is to describe our experience in aortic coarctation surgery in adult patients by assessing the immediate and mid-term outcomes. METHODS From January 1987 to March 2000, 50 consecutive adult patients underwent surgery for correction of aortic coarctation, through left lateral thoracotomy. Of these, forty two (84%) patients presented high blood pressure, with mea...
Basic hemodynamic studies on experimental coarctation of the aorta just beyond the left subclavian artery have revealed that hitherto unsuspected physical and physiologic factors are involved in creation of hypertension above a coarctation and in changes of pressure pulses below such a lesion. The effects are by no means explained by an increased resistance at the coarctation, as is generally b...
Stenting of aortic coarctation became the method of choice. In severe aortic coarctation, when retrograde crossing of the coarctation is impossible, a secondary approach with antegrade arterial crossing proved to be the solution in many cases. Here we report two cases of severe aortic coarctation in males aged 12 and 14, respectively, in which we used a secondary transradial approach (right and...
A dilatable form of juxtaductal aortic coarctation was surgically created in 29 newborn lambs. Of the 17 long-term survivors, four lambs served as controls and 13 underwent transcutaneous balloon dilation angioplasty with either polyvinylchloride or polyethylene catheters after 7--10 weeks of recovery. During growth before dilation, there was little change in the systolic gradient across the co...
Objective. Although cardiovascular malformations (CVMs) are well-recognized congenital anomalies in Turner syndrome, aortic dilation and dissection are less common and less familiar. Most of the relevant literature is limited to single cases reports or small series. We sought to increase the information available about the frequency and characteristics of aortic dilation in patients with Turner...
Infants with aortic arch interruption of juxtaductal coarctation of the aorta may depend on patency of the ductus arteriosus to provide adequate lower body perfusion. In many such infants the ductus arteriosus constricts after birth, resulting in severe heart failure, poor systemic perfusion and acidemia. We infused prostaglandin E1 (PGE1) at a rate of 0.05--0.1 microgram/kg/min into seven infa...
BACKGROUND Recurrent stenosis after extended end-to-end anastomosis for aortic coarctation is the primary indication for further interventions in children. Tension because of the extended resection and local arterial wall hypoxia are possible pathogenetic mechanisms. We hypothesized that (1) tension interferes with healing and (2) that vascular endothelial growth factor (VEGF), a hypoxia sensit...
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