I just sent Melany a message saying she was getting lots of love from the MDC ladies, and she gave me a quick update.
Melany said they were actually flown into Seattle for the surgery, and that it has been a really scary experience. Anna came out of surgery last night at 1am, and her intestine was so small that the only thing that would fit through it was a tiny needle. I guess she'd been having some nursing problems, and the intestine issue pretty much explains why. They're going to be at the hospital for a while.
I don't know what happens next, but hopefully the emergency part is over. And they're at Seattle Children's Hospital, so they should be in really good hands.