Coarctation of the aorta is an important, treatable cause of secondary hypertension. Its prevalence varies from 5% to 8% of all congenital heart defects. This condition is most often detected because of a murmur or hypertension found on routine examination. Delayed or absent femoral pulses and an arm/leg systolic blood pressure difference of 20 mm Hg or more in favor of the arms may be consider...

Introduction: Aortic coarctation is one of the most difficult cardiac defects to diagnose before birth, and it accounts for 8% of congenital heart diseases. Antenatal diagnosis is crucial for early treatment of the neonate and to decrease the risk of morbidity and mortality; however the fetal hemodynamic changes are not fully understood and current imaging methods are limited to accurately diag...

Nineteen infants with suspected coarctation of the aorta were studied with electrocardiographically gated magnetic resonance imaging on a 1.5 T whole body imaging system. In all cases imaging was successful and produced diagnostic images of high resolution. Coarctation was shown in 12 cases. The position and shape of the coarctation were well displayed by the magnetic resonance images. In addit...

Two patients with right aortic arch, anomalous left subclavian artery, and coarctation of theaorta, have been operations for the relief of coarctation, successful in one but only partially successful in the other: in one case, a 'dacron' patch was inserted into the narrowed segment, but a mild recurrence of coarctation was found a year later; in the other, the proximal segment of the anomalous ...

The aetiology of coarctation of the aorta is still largely unexplained, and investigations on familial occurrence have given confficting results. -3 Only 10 reports of coarctation of the aorta in monozygotic twins have been published. The lesion has shown discordance1 4-9 in all but one'0 of the cases. In only three of these was there a concordant cardiovascular malformation: atrial septal defe...

BACKGROUND Coarctation of the aorta is characterized by narrowing of the descending aorta. The narrowing typically is at the isthmus, the segment just distal to the left subclavian artery. Adults with undiagnosed aortic coarctation are asymptomatic or may present with nonspecific hypertension. We present a case that highlights the uncommon complication of aortic coarctation with spinal compress...

The present study was intended to evaluate the acute and short-term hemodynamic, angiographic, and pathological response to balloon-expandable stent treatment of experimental coarctation of the aorta. A discrete thoracic coarctation was surgically created in six mongrel dogs (two adults, four puppies). Two months postoperatively all six dogs (8.9-30 kg) underwent left heart catheterization an...

BACKGROUND A recent study of human cadaveric renal arteries revealed that renal artery narrowing could be due not only to atherosclerotic plaque compensated for by adaptive remodeling, but also to hitherto undescribed focal narrowing of an otherwise normal renal arterial wall (ie, coarctation). The present study investigated whether vessel coarctation could be identified in patients with sympto...

Coarctation of the aorta is defined by a discrete narrowing of the aorta. Transcatheter systolic coarctation gradient 20 mm Hg is an indication for intervention with treatment choice guided by patient age and anatomy of obstruction. Follow-up imaging should be tailored to early identification of recoarctation/aneurysm with directed intervention. Hypertension is common in the aging patient with ...

The incidence and possible causes of paradoxical hypertension were evaluated in eight children who underwent balloon dilatation and seven children who underwent surgical repair of coarctation of the aorta. Both procedures resulted in a significant reduction in the coarctation gradient. Both systolic and diastolic blood pressures increased in the surgical group after repair, whereas systolic pre...