is a chromosomal abnormality
resulting in there being
a third copy of chromosome
18 instead of the usual pair - this is called Trisomy 18.
are likely to have some facially different
(dysmorphic) features, as well as an increased risk of heart defects and difficulty with apnoea
(remembering to breathe) in very young
babies. Youngsters (particularly those with the most severe heart defects) are likely to need extensive medical
support and due to the expected impairments this is frequently withheld in the mistaken belief that
death is imminent and inevitable. It is not, and the oldest known
person with the condition is in their
early 30s at time of writing.
first weeks and months will
have physical and intellectual impairments but all will
learn and develop with time, interact
and experience a full range of emotions and pleasures. Approximately
1 in 10 babies will
first birthday, and of these 1 in 10 will
live to age 10.