By Amy Silverman
By Olivia LaVecchia
By Monica Alonzo and Stephen Lemons
By Chris Parker
By Michael Lacey
By Weston Phippen
Basically, you can get Down syndrome in one of two ways. You can get it from a parent who is a carrier, or you can get it the more common way, in which a genetic mutation occurs spontaneously at the moment of conception. No one knows why that happens, but it's true that the older the mother is, the likelier the chance.
Sophie has the latter kind, which is called nondisjunction trisomy 21. That's not surprising, since I was older when I had her and we already had one typical child, which would presume it's unlikely that my husband or I are carriers.
Braxton, Tia and Tyler Huff were all born with nondisjunction trisomy 21. That's unusual, partly because Shawnie was only 25 when she started having kids, and partly because "nondisjunction" means nonrelated. Having one child with that form of Down syndrome increases your chances of having another to 1 in 100. Still pretty good odds, so the Huffs didn't think much of it when they got pregnant with Tia. Then an ultrasound revealed that she had a large hole in the lower chamber of her heart, a defect commonly associated with Down syndrome. The doctors increased her chances to 50/50. Shawnie says she was worried before Tia was born that she'd be disappointed if her daughter was born with Down, but that when the time came, she wasn't upset at all.
In fact, in a way, the Huffs were relieved.
One of the hardest things about losing Braxton, Shawnie and Kevin agree, was losing the community that had grown around him and around them. They were very active in Sharing Down Syndrome, and even as young and as ill as he was, Braxton had several therapy sessions a week. Suddenly, the doctors and therapists were gone, and things got awkward with the support group. That was horrible, because the Huffs don't have much family in town, and already they had grown apart from their old friends.
Shawnie has a friend on the East Coast. The two were so close, she planned to name Braxton after her friend's young son. When Shawnie called to tell her friend that Braxton had Down syndrome and was ill, Shawnie recalls that the friend assumed that the Huffs wouldn't name Braxton after her healthy child. (They still did.)
When Braxton died, Shawnie says her friend told her she was lucky.
"It's weird for us to talk to other people, because we don't fit into their world," Shawnie says. Now she and Kevin are more active than ever in Sharing Down Syndrome and also host a "good grief" group for parents who have lost a child with Down syndrome.
The Huffs are an anomaly even in the Down syndrome community, because they've had three children with it. Rick Wagner, their genetics counselor at the Arizona Institute for Genetics and Fetal Medicine in Chandler, has worked in the field since 1978 and has never seen a case of a family having three children in a row with Down. Wagner says he thinks that either Shawnie or Kevin has mosaicism, in which the cells mutate after conception. That means that only some of the body's cells are affected, rather than all of them. In this case, Wagner believes, either Shawnie's ovaries or Kevin's testes are affected. They've had blood tests, which reveal nothing; even a biopsy might not reveal the cells, since they're not present everywhere, Wagner adds.
In any case, the Huffs don't really want to know.
With Tia's heart fixed and Tyler so far having suffered nothing worse than a really bad case of croup, life in the Huff household is relatively normal -- as normal as life can be when you have to expect that your kids won't learn how to do anything (from drinking from a bottle to sitting up to saying "Mama") without great assistance.
Four mornings a week, state-paid therapists come to the house to work with both Tia and Tyler, and Shawnie is the ultra-efficient mom, balancing sleeping Tyler on her shoulder while helping to arrange an intricate obstacle course of musical toys and benches for Tia to use with the physical therapist.
Saturdays are just like anyone else's day off -- a recent one included a trip to the Phoenix Zoo, where the Huffs realized they'd left the stroller in the other car, rented one, but still wound up chasing Tia around the zoo. She insisted on spending most of her time petting the goats, then fell asleep in Kevin's arms.
On another Saturday, Tia's watching Barney (her favorite) on the television in the playroom of her family's Gilbert home. The house is new and clean, and so is the neighborhood, which features a sparkling white Mormon church a few steps from the Huffs' front door. Tyler plays on the floor, then naps. Tia bounces in and out of the room, jumping up onto mom's lap to point out family members in a scrapbook filled with photos of Braxton. "Daddy! Mommy! Baby!" Tia says, her speech hard to decipher if you don't know her well. "No," Shawnie corrects her gently, smiling. "Big brother!"
It's true that Braxton and Tyler look a lot alike. Sometimes Kevin slips and refers to Tyler as Braxton. On this particular day, Tyler is wearing a blue-and-green-striped onesie with Tigger on it. On a bookcase in the Huffs' living room, there's a photograph of Braxton wearing the same outfit.