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A Trisomy is similar to Down syndrome only in
the sense that there is an extra chromosome in a pair. The name of that
chromosome makes up the name of the condition (eg: Trisomy 13).
The most common are Trisomy 13 and 18. It
affects 1/5000 birth and up to 80% die during the pregnancy. Unfortunately,
though the trisomy may not be fatal at birth 20/30% of children die in the 1st
month and 90% during the first year. Some of the consequences of Trisomy 13 and
18, also known respectively as Patau’s Syndrome and Edwards’ Syndrome can
include overlapping fingers, mental retardation, small size for age, failure to
thrive, deafness, heart, brain and kidney anomalies, and seizures amongst other
things.
Potter's syndrome
Anencephaly Down
syndrome
Hypoplastic
left heart syndrome Spina
bifida
Diaphragmatic Hernia
Trisomies (13,18..)
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