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Doctor insights on: Do All Down Syndrome Babies Have The Simian Crease

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Dr. Kathryn Akin
641 doctors shared insights

Down Syndrome (Definition)

Down syndrome is the classic presentation clinically of the congenital malformation syndrome also known as Trisomy 21. Classic features may include simian creases, epicanthal folds, upslanting palpebral fissures, flat nasal bridge, hypertelorism, low set ears, endocardial cushion defects of the heart, atlanto-axial joint instability, blood ...Read more


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If I have some of the physical signs of Down syndrome like a simian crease but don't have down syndrome, am I more likely to have a child with downs?

If I have some of the physical signs of Down syndrome like a simian crease but don't have down syndrome, am I more likely to have a child with downs?

No: Some of the features seen in down syndrome persons are also seen in other hereditary disorders, and some features are seen in normal people. A normal person can have a single horizontal palmar crease (simian crease), but his simian crease is just a trait he has, and has nothing to do with down syndrome. A normal person with a simian crease is not more likely to have a down syndrome baby. ...Read more

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How rare is it to have a simian crease (a single palmar crease) on both palms without having down syndrome?

How rare is it to have a simian crease (a single palmar crease) on both palms without having down syndrome?

Fairly common: A single sided simian crease is found in about 10% of the population, whereas having it on both palms is found in about 5%. When a condition is seen in this many people, it is considered somewhat common. Many more people who have a simian crease have normal chromosomes than have down syndrome. ...Read more

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My babies neck tissue measurement was high and they say he could have down syndrome. Can you explain this?

My babies neck tissue measurement was high and they say he could have down syndrome. Can you explain this?

Need more info: Babies with down syndrome typically have short necks with extra tissue. Having this noted on ultrasound does not necessarily mean the baby has down syndrome, but other tests will be necessary to know this. ...Read more

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Can extremely high sugar level in a male lead to (down syndrome) in his offspring. We are so scared of making babies.

No: Males get a bit of a pass on the ds issue.You make millions of sperm that are constantly renewed and only the healthiest sperm swim well enough to conceive.Any weak ones wouldn't do the deed. Women present only one egg at a time and those show the accumulated effect of toxins an the like. You may benefit from talking with a genetic counselor to explore any risk issues. ...Read more

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What are signs of Down syndrome in an infant?

What are signs of Down syndrome in an infant?

Complex issue: Children with downs syndrome can be seriously ill at birth. They may have heart disease, bowel obstruction, serious lung disease, blood sugar problems. If these are not present, they may be healthy but hypotonic with trouble feeding. Usually they have obvious features of their face and ears and hands that suggest the diagnosis. Chromosome testing will confirm the diagnosis. ...Read more

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What can I do to help babies /kids with down syndrome?

Help for Downs: There are services such as early intervention to assist children under 3 years of age. Special services are school responsibility after that. There are down syndrome support groups which can be very supportive. Many medical centers have down syndrome clinics to provide comprehensive care. My grandson has down syndrome. His parents find these services to be very helpful. ...Read more

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Do Down syndrome babies grow at a smaller rate in womb?

Do Down syndrome babies grow at a smaller rate in womb?

No: They tend to grow at a pretty normal rate prior to birth. Deficiencies in linear growth will eventually occcur in the average ds kid as they grow older. However, some maintain a relatively normal rate of growth, dependingg on other factors affecting their health. ...Read more

Simian Crease (Definition)

is a single line that runs across the palm of of the vhand instead of the 3 creases that are normaly seen appears in 1 out of 30 people more seen in males is often normal may be linked with some other symptoms that define a syndrome like Downs syndrome ...Read more