A sub-aortic membrane is a ring of firm [known as 'fibrous'] tissue that develops in the left side of the heart usually just below where the blood leaves the left ventricle through the aortic valve and enters the aorta.Depending on the size and location of this membrane it can at times cause serious problems;prevent sufficient amounts of blood from being pumped out of the left venticle of the heart,may damage the heart valves and may decrease the heart's pumping efficiency.Surgery may be required to remove the sub-aortic membrane. About 40% of children with this condition need surgery by the age of 5 years. The good news is that after 5 years the chances of a child with this condition needing surgery becomes less likely.It is important for your little girl to be carefully followed up by her cardiologist. Check-ups are usually recommended once a year.
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