Edward's+Syndrome


 * __Edward's Syndrome__** - Otherwise known as Trisomy 18, is caused by extra material on chromosome 18.


 * __Inheritance__** - Most types of Trisomy 18 are not inherited but caused by something called nondisjunction or abnormal miotic division in which chromosomes fail to separate during anaphase I. The only type of Trisomy 18 that can be inherited is Translocation Trisomy 18. It is inherited by having an unaffected parent who shows no sign of the disease but carries a rearrangement of genetic material which is called a balance translocation.


 * __Symptoms[[image:http://images2.clinicaltools.com/images/gene/trisomy18.jpg width="391" height="284" align="right"]]__**
 * Clenched hands
 * Prefered position is to cross legs
 * Heart disease
 * Hole, split, or cleft in the iris
 * Kidney problems
 * Low birth weight
 * Low set ears
 * Mental difficiency
 * Separation between rectus abdomin muscel
 * Small head
 * Small jaw
 * Underdeveolped fingernails
 * Unusual shaped chest

__**Diagnosis**__ - If a mother's Quad Screen Test comes back at a high risk for Trisomy 18 a doctor will then look for "soft markers" or characteristics of Trisomy 18. The only 100% way to know if a baby has Trisomy 18 is to do a Chorionic Villi Sampling (CVS). A Chorionic Villi Sampling is when you remove and study cells that have formed from the fetal contributions to the placenta.


 * __Prognosis__** - Abortion or earlyy death after birth, usually 2 to 10 days later. If survive past birth they will have severe mental retardation.


 * __Treatment__** - Trisomy 18 cannot be treated only managed. The management of Trisomy depends on the circumstanses of each individual.

Great format. I assume you can see the picture on a non-school computer. By the way, "symtoms" is spelled "symptoms" with a "p."**
 * __Statistics__** - Approxamantly 1 out of every 3,000 babies born have Edward's Syndrome. Edward's Syndrome is also three times more common in girls than in boys.
 * __ Sources __**
 * []
 * []
 * []
 * []
 * []
 * []
 * __Comments:__