Down syndrome
What is Down syndrome?
Down syndrome, also known as Trisomy 21, is an extra copy
of the 21st chromosome present at birth. This extra genetic material
manifests itself in a number of ways, most notably in cognitive delays, recognizable
physical characteristics, and a high social and emotional intelligence. Down
syndrome is the most common chromosome abnormality in humans and exists across
all races and classes. It is estimated that one out of every 700 babies is born
with Down syndrome, but this number is expected to decrease due to the advent
of noninvasive prenatal testing. Even though we received a prenatal diagnosis
and continued our pregnancy to term, we are in the minority, as anywhere from
88-94% of prenatal Down syndrome diagnoses end in termination.
Down syndrome also comes with a higher prevalence of health
problems, namely congenital heart disease, gastrointestinal issues like Hirschsprung's
disease and duodenal atresia, hearing loss and thyroid disorders. These
conditions, however, are easily treatable with either surgery or medication. Luckily
for us, Quinn only shows signs of mild hearing loss that will be corrected with
tubes once he is old enough.
What does Down syndrome look like?
Some common characteristics of individuals with Down
syndrome are:
- Epicanthal folds (extra crease in the eye)
- Flattened nasal bridge
- Misshapen and/or low-set ears
- Short limbs
- Sandal gap between the toes
- Brushfield spots in the eye
- Single palmar crease
- Hypotonia (low muscle tone)
- Clinodactyly (inward curve to the pinky finger)
*Note: not all of these characteristics are found in all people
with Down syndrome because Ds is not a one-size-fits-all condition. Quinn, for
example, has only 4 of these features (epicanthal folds, flattened nasal
bridge, short limbs, and Brushfield spots).
Are there different types of Down syndrome?
Down syndrome occurs in one of three ways:
- Nondisjunction: This accounts for 95% of Ds cases and occurs when chromosome pairs fail to separate properly during meiosis. The result is that, as the cells multiply and divide, each cell will then receive an extra copy of the 21st chromosome. We suspect Quinn has this type of Down syndrome.
- Robertsonian translocation: this occurs when the long arm of chromosome 21 in a parent is attached to another chromosome, usually chromosome 14. During reproduction, these misplaced chromosomes have a significant chance of creating a gamete with an extra chromosome 21, producing a child with Down syndrome. Translocation Down syndrome is often referred to as familial Down syndrome because it has genetic tendencies. It is the cause of 2–3% of observed cases of Down syndrome.
- Mosaic: this occurs when only some of the cells have an extra copy of the 21st chromosome. It accounts for only 2% of Down syndrome cases, though some suspect this rate may be higher because when only some cells are affected, it can go undiagnosed. Some individuals with Mosaic Ds are extremely advanced, while others have the same challenges that those with nondisjunction or transolocation Ds have. It depends on where that extra chromosome falls.
What can people with Down syndrome do?
The
same things you can do. The old stereotypes are fading as more and more individuals
with Ds are integrated into the community instead of institutionalized, like in
past generations. Individuals with Ds can read, write, attend college, get
married, and hold jobs. They can be athletes, artists, musicians, and
professionals. While it may take them longer to reach certain milestones, with
proper intervention and parental guidance and support, children with Down
syndrome can and will reach the same goals that typically-developing children
attain. So don’t discount my kid just yet.
What's it like to have a child with Down syndrome?
After our prenatal diagnosis, the rest of the pregnancy was stressful and closely monitored. We went in for weekly ultrasounds and it seemed that doctors always found something that worried them. Quinn was born early and relatively healthy, and all the potential problems that showed up on ultrasounds had resolved themselves upon his arrival. The first year, from what I've been told and experienced thus far, is a whirlwind of appointments and diagnostic tests. Because of the associated health problems listed above, doctors take a let's-rule-this-out stance, so we were sent to a number of specialists to check his hearing, thyroid levels, swallow function, and other anomalies.Over the years, these appointments slowed down. We decided that without any major health issues to face, Quinn's development needed to be a priority, so we enrolled him a school for children with special needs called The Rise School of Houston, where he has received integrated therapies and interventions alongside other kids with Down syndrome as well as their typically-developing siblings (both Atticus and Lucy have attended Rise, too).
There are many other blogs written by parents like me who say things like, "Down syndrome is the best thing that ever happened to this family" or "I don't know what I did to deserve such an amazing experience." That's not my take. I'm not a sunshine and rainbows kind of person, and I'm not going to paint an overly rosy picture to make myself feel better. I'm a realist and Down syndrome can be tough. But so can a lot of things that typically-developing kids experience. I think parenting in general is tough, but Down syndrome is not the end of the world. Quinn is just like any baby: he smiles, he sleeps, he poops, and he plays. He's downright awesome, really.
Things to remember:
“Down syndrome” is
not an adjective. Quinn is not a “Down syndrome baby” or a “Downs kid.” He is a
child/person with Down syndrome. It does not define him.
Also, please
stop using the word “retard.” When you use that word to describe someone else
or their behavior, you’re basically saying that they’ve chosen to do something
stupid that deserves to be insulted. This word isn’t used with any positive
connotation. It’s an insult, a joke, and a way to point out others’ bad
choices. But what you’re really doing is taking away my son’s worth. You’re
suggesting that my son is foolish since you’re equating his disability to
someone else’s foolish behavior. Not cool.