What percentage of people have cri du chat?
Posted by Marta | Posted in Other - Diseases | Posted on 28-04-2010
Tagged Under : Parents
kelsey k asked:
Cri du chat is the result of a chromosome abnormality—a deleted piece of chromosomal material on chromosome 5. In 90 percent of children with cri du chat syndrome, the deletion is sporadic. This means that it happens randomly and is not hereditary. If a child has cri du chat due to a sporadic deletion, the chance the parents could have another child with cri du chat is 1 percent. In approximately 10 percent of children with cri du chat, there is a hereditary chromosomal rearrangement that causes the deletion. If a parent has this rearrangement, the risk for their having a child with cri du chat is greater than 1 percent.
Cri-du-chat occurs in approximately one in fifty thousand live births.
My cousing has Cri Du Chat syndrome.
He’s 5 and has all the symptoms.
The condition affects an estimated 1 in 20,000 to 50,000 live births.