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A 43-year-old member asked:

when do people get tested as a carrier for trisomy 18?

1 doctor answer1 doctor weighed in
Dr. Golder Wilson
Specializes in Clinical Genetics
Translocation: If the edwards syndrome infant has translocation (joining of chromosomes) rather than a free-standing extra 18 chromosome (trisomy), then the parent may "carry" this translocation in balanced form without symptoms. Translocation carriers can have a 10-50% risk for future infants with edwards as opposed to the very small risk (<1%) when the child has trisomy 18.

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A 30-year-old member asked:

What is edwards syndrome (trisomy 18) like?

2 doctor answers4 doctors weighed in
Dr. Gregory Mosolf
Pediatrics 25 years experience
Extra chromosome: In trisomy 18 the patient has an extra chromosome 18. This genetic disorder frequently causes heart and kidney defects. They may have a small head and jaw and usually have severe developmental delay. Here is a link http://www.Trisomy18.Org/site/pageserver?Pagename=whatist18_whatis.
A 35-year-old member asked:

What is edwards syndrome (trisomy 18)? What causes it?

2 doctor answers4 doctors weighed in
Dr. Gregory Mosolf
Pediatrics 25 years experience
Extra chromosome: In trisomy 18 the patient has an extra chromosome 18. This genetic disorder frequently causes heart and kidney defects. They may have a small head and jaw and usually have severe developmental delay. Here is a link http://www.Trisomy18.Org/site/pageserver?Pagename=whatist18_whatis.
A 36-year-old member asked:

What're the causes of trisomy 18?

2 doctor answers5 doctors weighed in
Dr. Nikolaos Zacharias
Maternal-Fetal Medicine 26 years experience
Genetic accident.: Trisomy 18 is a generally perinatally lethal (few exceptions prove the rule) genetic aberration that occurs when chromosomal non-disjunction occurs in either the maternal or paternal gamete (egg, sperm). There is no cure and comfort care is all that is ethically permissible.
A 45-year-old member asked:

Where can I find more information on trisomy 18 or edwards syndrome?

2 doctor answers2 doctors weighed in
Dr. Craig Uhl
Pediatrics 27 years experience
Trisomy18.org: There is a foundation set up for this syndrome - go to http://www.Trisomy18.Org.
A 44-year-old member asked:

How do I know if I am a carrier of trisomy 18?

2 doctor answers6 doctors weighed in
Dr. James Ferguson
Pediatrics 46 years experience
Chromosome study: Most trisomy 18's arise as a new error on meiosis during the formation of a womans egg.It is not "carried" like a sickle trait. There is a rare possibility that infants with trisomy 18 picked up the material from a parent with a balanced switch between 2 chromosomes.The babies study would show the translocation not t18, parents would need to be studied in such a case.

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Last updated Aug 29, 2017
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