CARDIOLOGY
PROSTHETIC HEART VALVES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
hypoplasia of the pulmonary artery
|
|
|
mitral atresia
|
|
|
pulmonic atresia
|
|
|
all of the above
|
Detailed explanation-1: -Hypoplastic left heart syndrome (HLHS) is defined as a cardiac lesion with hypoplasia or atresia of the mitral and aortic valves in association with a left ventricular chamber that is either absent or too small to support the systemic circulation.
Detailed explanation-2: -Hypoplastic left heart syndrome (HLHS) is a birth defect that affects normal blood flow through the heart. As the baby develops during pregnancy, the left side of the heart does not form correctly. Hypoplastic left heart syndrome is one type of congenital heart defect. Congenital means present at birth.
Detailed explanation-3: -Hypoplastic left heart syndrome (HLHS) is a spectrum of heart diseases in which the left-heart structures are underdeveloped. These structures include the mitral valve, the left ventricle, the aortic valve, and the aorta. HLHS is a congenital heart defect that begins during pregnancy.
Detailed explanation-4: -As with most congenital heart defects, there is no known cause. About 10% of babies with hypoplastic left heart syndrome also have other birth defects. It is also associated with some genetic diseases such as Turner syndrome, Jacobsen syndrome, trisomy 13 and 18.