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Donít Worry: Get Yourself Tested For Disorders Like Down Syndrome During Pregnancy

by Rishika Gupta on December 2, 2018 at 1:37 PM
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Donít Worry: Get Yourself Tested For Disorders Like Down Syndrome During Pregnancy

Worried about the chromosomal disorders running in the family? Then you might want to consider testing for chromosomal disorders when you are pregnant.

It may sound like code language or a password. But no, 22q11.2 is the name of one of the most common chromosomal disorders after Downs syndrome.


What is 22q11.2? It's caused by a loss or deletion of a small part of chromosome 22 at position q11.2. Hence the name 22q11.2 deletion syndrome.

The disorder has a variable presentation. It may affect different parts of the body, mostly the heart, kidney, mouth, and brain, along with the immune and endocrine system, leading to multiple deformities. With the incidence of one in every 2,000 births, it occurs spontaneously in most cases while it is inherited in 5-10 percent of cases, with a 50 percent chance of transmitting the disorder. However, due to unfamiliarity and lack of understanding most cases are still identified after birth, during childhood or even during adulthood.

Here is a case study: Like any expectant parent, Juhi was excited when she learned about her pregnancy. However, she suffered a miscarriage as her fetus was affected by Down syndrome. Juhi didn't lose hope and conceived again after few months. This time, for precaution, she consulted a geneticist who advised her to undergo a non-invasive prenatal test (NIPT) which detects not only Down syndrome but also few other chromosomal disorders.

To her dismay, this time as well the fetus was detected with a chromosomal disorder -- the 22q11.2 deletion syndrome, also known as DiGeorge syndrome. Though she was initially upset, she was thankful to have information early to make an informed decision.

Today most expectant parents are aware of Down syndrome, all thanks to the awareness created about it. However, there are many other abnormalities which haven't been spoken about, nor heard of, as they are relatively rare. To add to the difficulty, there is not much known of the disorder or its treatment. Therefore, we often hear stories of parents running from pillar to post in diagnosing the disorder of their child or seeking funds for the treatment of their child.

So, what is the solution? It is evident that there is no cure for such disorders and hence management is only the way to improve the quality of life of the patient.

Prevention encompasses a lot of things :
  • Being aware of your genetic predisposition to certain diseases.
  • Knowing your family history.
  • Matching your genes with your husband/wife before planning a baby.
  • In case of miscarriage, finding the root cause for it and taking care in the next pregnancy.
  • During pregnancy, opting for non-invasive prenatal test which can detect any chromosomal abnormality through a simple blood test as early as nine weeks.
  • Once the child is born, opt for a newborn screening test to test for a range of disorders.
Early detection can improve outcomes, and more awareness is the key to identify such disorders.

Source: IANS


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