We are reporting a rare case of a patient with the right coronary artery giving a large collateral vessel to an intercostal artery in a patient with repaired coarctation of aorta. A 64 year-old man with coarctation of the aorta, surgically repaired at 18 years of age, presented with dyspnea. A trans-esophageal echocardiogram revealed a severely stenotic bicuspid aortic valve.

Twenty two children (age range 4 months-20 years) with pulmonary valve stenosis and ten children (age range 1 month-11 years) with coarctation of the aorta underwent balloon dilatation in the 29 month period between October 1983 and February 1986. Number 5-9 French catheters with 5-20 mm balloons were used according to the size of the angiographically measured pulmonary valve annulus or coarcte...

BACKGROUND In aortic coarctation, current guidelines recommend reducing pressure gradients that exceed given thresholds. From a physiological standpoint this should ideally improve the energy expenditure of the heart and thus prevent long term organ damage. OBJECTIVES The aim was to assess the effects of interventional treatment on external and internal heart power (EHP, IHP) in patients with...

Williams-Beuren syndrome (WBS) is a genetic disorder caused by elastin gene deletions, and is characterized by cardiovascular malformations, primarily including supravalvular aortic stenosis and peripheral pulmonary stenosis. We report a case of a neonate who developed severe discrete aortic coarctation, underwent multiple surgical interventions, and was subsequently diagnosed with WBS. Severe ...

BACKGROUND In some patients, local surgery-related complications are diagnosed many years after surgery for aortic coarctation. The purposes of this study were: (1) to systematically evaluate asymptomatic adults after Dacron patch repair in childhood, (2) to estimate the formation rate of secondary thoracic aortic aneurysms (TAAs) and (3) to assess outcomes after intravascular treatment for TAA...

A 47 year-old man with aortic coarctation had undergone extra-anatomic bypass through a left thoracotomy. He presented 10 years later with uncontrolled arterial hypertension due to residual aortic coarctation, graft obstruction and multiple collateral artery aneurysms between the subclavian artery and the aorta. He underwent extra-anatomic correction between the ascending aorta to descending ao...

Computational models promise to aid in the interpretation of the coupled interactions between evolving wall geometry, structure, material properties and hemodynamics seen in arterial adaptations. Motivated by recent aortic coarctation models in animals, we used a computational fluid-solid-interaction model to study possible local and systemic effects on the hemodynamics within the thoracic aort...

A 56-year hypertensive, multiparous woman presented to the cardiology unit with Canadian Cardiovascular Society (CCS) class-III angina and worsening dyspnea for the past few weeks. Her clinical examination showed high blood pressure and mid-systolic crescendo-decrescendo murmur radiating to carotids. However, there was no radio-femoral delay or significant blood pressure difference between her ...

OBJECTIVE Current understanding of shear-sensitive signaling pathways has primarily been studied in vitro largely because of a lack of adequate in vivo models. Our objective was to develop a simple and well-characterized murine aortic coarctation model to acutely alter the hemodynamic environment in vivo and test the hypothesis that endothelial inflammatory protein expression is acutely upregul...

Twenty-one patients (age four to 25 years) with bicuspid aortic valves proved by surgery and angiography (12) or angiography alone (9) were studied by echocardiography. Seventeen patients had aortic valve disease (11 stenosis, 6 incompetence) and four had coarctation of the aorta with normally functioning aortic valves. A comparison group of 16 patients (9 with aortic valve disease and 7 withou...