Question 1

what is another name for trisomy 21?

Accepted Answer

Down Syndrome: This syndrome was named for j langdon down, a physician who ran a foundling hospital in britain many years ago. He wrote up one of the first recognized descriptions of the common features of the syndrome published in a medical journal.

Question 2

what are the differences between trisomy 21 and xxx?

Accepted Answer

Completely different: Down syndrome (trisomy 21) is characterized by varying degrees of neurodevelopmental delay  (mild to severe) propensity for dementia at early age and heart/blood disorders, but may have a near normal life span. Extra chromosome x is usually very mild condition; affected females tend to be tall and have relatively small heads and minimal decrease in their verbal and performance iq scores.

Question 3

hi i had my 12 week scan and my trisomy 21 results were 1:470 is this something to worry about?also papp a was 0.3955.what does this mean?

Accepted Answer

MD review: Your doctor will need to go ver your report in its entirety and not just just certain aspects. It sounds like you were doing first trimester screening where the 12 week sonogram measurement of the baby’s neck (nuchal fold ) would be calculated into your blood test to determine the level of risk. 1/470 is a very low risk for Trisomy 21.

Question 4

how can you treat down syndrome (trisomy 21)?

Accepted Answer

Supportively: Down syndrome itself does not need to be treated  however certain conditions that can go along with ds should be managed and prevented if possible.  These include monitoring for disturbances in growth and obesity, getting a cardiac workup to evaluate the heart function, have hearing and vision testing, check thyroid function, monitor the blood yearly for abnormal blood counts, good dental hygiene.

Question 5

when should babies start to crawl if trisomy 21?

Accepted Answer

They may never: Crawling ends up the least important milestone for a baby.  An infant with chromosomal defect usually has low muscle tone and will be delayed in sitting and walking.  Most tend to scoot on their bottoms and then learn to pull up to stand and then walk along furniture.  They usually do not bother to crawl.  Crawling is not necessary.  They will progress their way - with appropriate help.

Question 6

what are the chromosome defects affecting chromosome 10, 13 and trisomy 21?

Accepted Answer

Many: There are numerous disorders that can happen with abnormalities of chromosomes 10 and 13. Too many to list here. Trisomy 21 means the person has an extra chromosome 21 and this is more commonly known as Down's syndrome. There are many possible phenotypic findings with this disorder, again too many to list here including physical characteristics, heart , hearing, vision, skeletal, developmental....

Question 7

could you tell me what happens to other gametes in trisomy 21 after meiosis?

Accepted Answer

See below: The gametes that are not fertilized during conception are wasted.

Question 8

what is the cut off risk for trisomy 21 is 1:215, should i go for amniocentesis test?

Accepted Answer

Confusing question: Your age is listed at 45 with a Down syndrome risk in excess of 1/100, added to a 4% risk of some unexpected outcome (cleft, premi, sick) for delivery at that age.Amniocentesis is a definitive test for ds and other chromosome issues. If it might alter what you plan for the pregnancy, it has value including preparing for a special needs kid.If it won't, why bother.Some risks are involved.

Question 9

what's the relationship between trisomy 21 and down syndrome?

Accepted Answer

Cause & effect: Trisomy 21 accounts for approximately 96% of down syndrome.

Question 10

what could cause trisomy 21? other than translocation? and maternal age?

Accepted Answer

Non disjunction: The cause is an error in the separation of the 21 chromosomes in the formation of the egg.Instead of one, two remain in the egg which becomes 3 after fertilization. It can happen at any age and can happen with other chromosomes. Why it happens is unclear, but it can happen at any maternal age (even 16). It just begins increasing in frequency as a girl ages.

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Doctor answers about:

Trisomy 21 nedir

A member asked:

What is another name for trisomy 21?

A member asked:

What are the differences between trisomy 21 and xxx?

A member asked:

Hi i had my 12 week scan and my trisomy 21 results were 1:470 is this something to worry about?also papp a was 0.3955.what does this mean?

A member asked:

How can you treat down syndrome (trisomy 21)?

A member asked:

When should babies start to crawl if trisomy 21?

A member asked:

What are the chromosome defects affecting chromosome 10, 13 and trisomy 21?

A member asked:

Could you tell me what happens to other gametes in trisomy 21 after meiosis?

A member asked:

What is the cut off risk for trisomy 21 is 1:215, should i go for amniocentesis test?

A member asked:

What's the relationship between trisomy 21 and down syndrome?

A member asked:

What could cause trisomy 21? other than translocation? and maternal age?

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