Percutaneous transluminal angioplasty (PTA) was used successfully to treat coarctation restenosis in seven patients. The patients were 10 months to 17 years old at the time of the angioplasty, and the initial coarctation repair had been performed 10 months to 161⁄2/2 years previously. PTA reduced the systolic pressure gradient across the coarctation from a mean of 58 mm Hg before the procedure ...

We performed color Doppler flow mapping in 15 patients, 1 week to 17 years old (mean 42 months), with coarctation of the aorta that was confirmed subsequently by angiography and/or surgery. Twelve patients had native coarctation and three had mild recoarctation after surgical repair. Color Doppler flow maps were analyzed with a digital analysis package and a Sony computer system. The diameter i...

Primary balloon dilatation of coarctation of the aorta was attempted in 10 consecutive neonates (age range 2-23 days). The coarctation site was crossed and the balloon inflated in all but one patient. In two patients with associated severe isthmal hypoplasia there was no change in the gradient after dilatation. In the remainder, the residual gradients were trivial and angiography showed complet...

Atypical locations for aortic coarctation have been previously described. However, to our knowledge, no case has been described of a rapidly progressive dilated cardiomyopathy caused by an atypical coarctation, with a rapid normalisation of ventricular function after treatment.

Pseudoaneurysm is an infrequent complication of aortic coarctation repair. It occurs in 5-9% patients. Further complications such as pseudoaneurysm rupture or aorto-pulmonary fistula (APF) carry a high mortality rate and represent therapeutical.

We report a unique case of chronic dissection of the ascending aorta complicated with huge and thrombotic pseudoaneurysm in a patient with coarctation of descending aorta. Preoperative investigations such as transesophageal echocardiography (TEE) confirmed the diagnosis of dissection. Intraoperative findings included a12 cm eccentric bulge of the right lateral side of dilated the ascending aort...

Balloon coarctation angioplasty (BCA) was performed in eight patients (five male and three female) who were 14-49 years old (mean, 27.3 years) with isolated discrete unoperated coarctation of the aorta (n =7) and postoperative recoarctation (n= 1). BCA was successful in seven of eight patients, resulting in a decrease in the gradient (64+19 to 16±13 mm Hg, p <0.01), an increase in the diameter ...

A 4-month-old boy was admitted to our hospital following an unsuccessful attempt at interventional repair of aortic coarctation via the right carotid artery, which seemed to have given rise to the formation and growth of a cervical mass overlying the entry site. Despite the initial anticipation of difficulty during intubation due to the pressure effect of the mass, anesthesia progressed unevent...

The primary purpose of this study was to determine whether a neonatally induced thoracic aortic coarctation reduces renal blood flow during physiological stress (treadmill exercise), and whether relief of the gradient returned renal blood flow during exercise to normal. Two ancillary questions were also addressed: dose a coarctation after the responses of enteric and other visceral vascular bed...

The acute and chronic effects of flow disturbances on arterial endothelium were studied by locally constricting the diameter of the rabbit abdominal aorta by 62% + 2.4% (mean +/- SE). This procedure produced a region of elevated shear stress immediately upstream from the coarctation. A region of small irregular vortices was formed in the first 5 to 7 mm downstream, whereas an annular vortex was...