نتایج جستجو برای: coarctation
تعداد نتایج: 4936 فیلتر نتایج به سال:
IN COARCTATION of the aorta, the coexistence of a defect of the ventricular septum tends to prevent development of hypertension in the upper systemic circulation by permitting blood from the left ventricle to pass into the pulmonary circulation. This tendency is accentuated but not fundamentally altered if there is also a patent ductus arteriosus opening into the aorta proximal to the coarctati...
Since coarctation of the aorta was first described by Johann Friederich Meckel in 1760 [1], a vast literature has appeared on its associated conditions and treatment. This anomaly of the descending thoracic aorta is usually located distal to the left subclavian artery and is commonly found in coexistence with intraand extracardiac pathology. Ventricular and / or atrial septal defects [2], as we...
PURPOSE To show that 4D Flow is a clinically viable tool for evaluation of collateral blood flow and demonstration of distorted blood flow patterns in patients with treated and untreated aortic coarctation. MATERIALS AND METHODS Time-resolved, 3D phase contrast magnetic resonance imaging (MRI) (4D Flow) was used to assess blood flow in the thoracic aorta of 34 individuals: 26 patients with co...
Real-time cross-sectional echocardiographic sector scan examinations were performed from a suprasternal notch location to image aortic anatomy in 15 children (ages 1 day to 21 years) who were subsequently shown at cardiac catheterization to have coarctation of the descending thoracic aorta. The resulting echocardiographic images of the ascending, transverse and descending aorta imaged juxtaduct...
Balloon angioplasty as treatment for coarctation of the aorta is increasingly performed. Endovascular stents have been proposed as a means of improving the efficacy and safety of the procedure. In this report, we describe one institution's immediate results and clinical follow-up after implantation of endovascular stents. Retrospective analysis for endovascular stent placement for coarctation o...
Background: Stent implantation has evolved as an important therapeutic strategy for aortic coarctation. Aim: This study aimed to present the experience of aortic coarctation stenting using the Cheatham-Platinum stent by an Adult Interventional Cardiology Team. Material and methods: The data of 11 patients (ages were between 15 to 58 years) who underwent aortic coarctation stent implantation bet...
BACKGROUND The mechanism of the late complications after coarctation repair remains unclear, and this common congenital heart disease affects patients and perplexes physicians in terms of prevention and treatment. METHODS From 2004 to 2008, 13 patients (1 adolescent and 12 adults) with repaired or unrepaired coarctation of the aorta were operated on in this department due to valve disorder or...
A ortic coarctation was one of the first types of congenital heart diseases to be treated successfully with surgery. Despite initial optimism, surgical relief of aortic narrowing does not cure the underlying vascular problem. Patients with previously repaired coarctation have a significantly reduced life expectancy and continue to be at risk of major complications throughout life including hype...
The pathogenesis of paradoxical hypertension after resection of coarctation of the aorta was investigated by comparing the course of seven children undergoing repair of coarctation with five acyanotic children undergoing elective cardiovascular surgery. During the first 24 hours after surgery, all coarctation patients demonstrated a rise in systolic blood pressure (35 +/- 15.5 mm Hg; P less tha...
The prenatal diagnosis of fetal coarctation is still challenging. It is mainly suspected by ventricular disproportion (smaller left ventricle than right ventricle). The sensitivity of ventricular discrepancy is however moderate for the diagnosis of coarctation and there is a high false positive rate. Prenatal diagnosis of coarctation is important because the delivery can be arranged in a centre...
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