coarctation of the aorta

Views:
 
Category: Education
     
 

Presentation Description

No description available.

Comments

Presentation Transcript

PowerPoint Presentation:

COARCTATION OF THE AORTA ARUN JOSE M TBILISI STATE MEDICAL UNIVERSITY

PowerPoint Presentation:

Coarctation of the aorta, is a common congenital condition where the aorta narrows in the area where the ductus arteriosus ( ligamentum arteriosum ) inserts Coarctation is about twice as common in boys as it is in girls. It’s common in girls who have Turner syndrome.

PowerPoint Presentation:

Aneurysm formation following stent implantation for aortic coarctation detected by multidetector computed cardiac tomography

PowerPoint Presentation:

There are three types: Preductal coarctation /infantile The hypoplasia of aortic arch proximal to the ductus arteriosus . results when an intracardiac anomaly during fetal life decreases blood flow through the left side of the heart, leading to hypoplastic development of the aorta. seen in 5% of infants with Turner Syndrome

PowerPoint Presentation:

2 . Ductal coarctation The narrowing occurs at the insertion of the ductus arteriosus . usually appears when the ductus arteriosus closes. 3 . Postductal coarctation /adult : discrete ridge like folding of the aorta opposite the ligamentum arteriosum distal to the arch vessels. It is associated with notching of the ribs (because of collateral circulation) hypertension in the upper extremities, and weak pulses in the lower extremities. result of contraction and fibrosis of the ductus arteriosus upon birth

PowerPoint Presentation:

Sketch showing heart with coarctation of the aorta. A: Coarctation (narrowing) of the aorta. 1:Inferior vena cava, 2:Right pulmonary veins, 3: Right pulmonary artery, 4:Superior vena cava, 5:Left pulmonary arter , 6:Left pulmonary veins, 7:Right ventricle, 8:Left ventricle, 9:Pulmonary artery, 10:Aorta

PowerPoint Presentation:

MORPHOLOGY PREDUCTAL Tubular narowing of aortic segment between left subclavian and ductus arteriosus Ductus arteriosus is patent and is the main sourse of blood delivered to distal aorta Right ventricle is hypertrophied and dialated Pulmonary trunk is also dialated

PowerPoint Presentation:

POSTDUCTAL Aorta is constricted by a ridge of tissue Tissue is made of smooth muscles and elastic fibres Ductus arteriosus is closed Proximal to the constriction the aortic arch and the branch vessels are dialated Left ventricle is hypertrophic

PowerPoint Presentation:

Signs and symptoms condition diagnosed usually later in life. Some children born with coarctation of the aorta have other heart defects, such as aortic stenosis , ventricular septal defect, patent ductus arteriosus or mitral valve abnormalities.

PowerPoint Presentation:

In mild cases, where the aorta is slightly narrowed, babies might have (1)Working hard to breathe 2) Anorexia 3)Cool arms and legs 4)Later ,dizziness , faint, have chest pain, tiredness,headaches or nosebleeds. Exercise cause Intermittent claudication .

PowerPoint Presentation:

In more severe cases, Arterial hypertension in the right arm with normal to low blood pressure in the lower extremities is classic. Poor peripheral pulses and a weak femoral artery pulse coarctation in the left subclavian artery , asynchronous radial pulses in the right and left arms. coarctation after left subclavian produce synchronous radial pulses, but radial-femoral delay is present under palpation in either arm.

PowerPoint Presentation:

Imaging and diagnosis Electrocardiogram (ECG) Chest X-ray Echocardiography Angiography Chest computed tomography (CT or CAT) scan Magnetic resonance imaging (MRI) of the chest Cardiac catheterization

PowerPoint Presentation:

esophagus filled with barium, a reverse 3 or E sign and shows the areas of prestenotic and poststenotic dilatation. result in hypertrophy of the left ventricle. Recurring Coarctation Following treatment there is a small risk that the problem will redevelop. After surgical treatment, the risk of recurrence is between 5 and 10 percent. After angioplasty or stenting , the risk of recurrence is between 11 and 15 percent.

PowerPoint Presentation:

Therapy Surgery is the gold standard, but today for adults , balloon angioplasty and stenting . conservative if asymptomatic surgical resection of the narrow segment if there is arterial hypertension . If left untreated, arterial hypertension may become permanent

Vielen dank !! :

Vielen dank !! 

authorStream Live Help