Also known as: DS, DNS
What is Down Syndrome?
Normally all cells in the body have 23 pairs of rod-like structures called chromosomes which carry the genetic material (genes) we get from our parents and which control how we look, how we grow and how we will function physically, emotionally and intellectually, etc.
Chromosomal and genetic abnormalities can change all or some of these characteristics.
Down syndrome babies/children and adults all have an extra full or partial piece of chromosome 21. It is the commonest chromosomal disorder in the USA.
What causes Down syndrome?
There are 3 types of Down syndrome which result from different mechanisms, all of which result in an extra full or piece of chromosome 21 in some or all of their cells. The extra copy usually comes from the mother however in about 5% of babies with Down syndrome it originates in the father. Very rarely is it hereditary.
While the exact cause is unknown, a mother's age (older than 35 years), and/or there being a sibling with Down syndrome seems to increase the chances for a Down syndrome baby.
What are the signs/symptoms of Down syndrome?
Babies with Down syndrome are usually diagnosed at birth by the presence of a number of physical signs. These include:
They also have a variable degree of intellectual disability. Down syndrome babies frequently have other abnormalities like heart, intestine, ear or lung problems.
What are Down syndrome care options?
While there is no cure for Down syndrome, parents and their pediatrician along with the appropriate specialists, will have a management plan to treat any other physical abnormality, minimize any potential complication and to optimize the physical, intellectual and emotional well being of the child with a special education program and help with learning, speech, nutrition and movement.
Reviewed by: Jack Wolfsdorf, MD, FAAP
This page was last updated on: 10/31/2017 12:09:57 PM
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