Childhood Diseases

Posted by: Pip | 2010/12/17


Subaortic Membrane

Hi Dr.

I have posted here a number of times about my 1 year old with the congenital scoliosis. I took her in to see the cardiologist to check the heart and it appears that she may have a subaortic membrane. He said that he would like to see her in a years time to check and monitor if it has grown. Can you please give me more information on this, as well as what her prognosis could be... I know it''s hard to tell, but do these membranes generally progress?

Thank you

Expert's Reply



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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