Left heart hypoplasia syndrome definition - medical term
A fo
rm of congenital heart disease in which the whole left
half of the heart (including the aorta, aortic valve, left
ventricle and mitral valve) is underdeveloped
(hypoplastic). Blood returning from the lungs has to flow
through an opening in the wall between the upper chambers
of the heart (an atrial septal defect). The right ventricle
pumps blood into the pulmonary artery, and blood reaches
the aorta through a shunt (the ductus arteriosus). The
child may seem normal at birth but have trouble within a
few days of birth (when the ductus closes), become ashen,
have rapid and difficult breathing and have problems
feeding. This heart defect is usually fatal within the
first days or months of life without treatment, namely a
sequence of surgical operations or a heart transplant.
Common Misspellings: left heart hypoplasia syndrone
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