Shayde said a procedure in which she was put under anesthesia to check the blood pressure in different chambers of her heart made her a bit less scared of the upcoming surgery.
"I'm not as nervous as I was after the catheter," said the third-grader.
Emily, who has wheezing spells and whose lips, toes and fingertips turn blue when she gets too cold, says she's looking forward to being able to be active in sports again. Barnes said that Emily has lost weight as the calories she consumes go to make her heart work.
"I want to play soccer again," said the kindergartner.
After surgery, the girls are expected to be in the hospital for a week or two and then spend three months confined to their home.
"I'd prefer to get one back recuperated before I get the other one started, but we don't have a choice," said Van Noy, a hair stylist currently on medical leave.
She said that she wants to wait a week after the first girl is transplanted before letting her sister see her so she won't be scared by the tubes.
Van Noy said that that week will be the longest the two -- who share a toy-filled bedroom with alternating pink and purple walls -- have been separated. "I think it'll be hard on both of them," she said.
Van Noy said that they've talked about the surgeries, and how the hearts will come from people who died. The girls have also talked to a psychologist and Van Noy said she suspects the sisters also have talked to each other about what they are going through.
Silvestri said that 25,000 to 30,000 people a year get the transplants they need. Another 6,000 people each year die waiting for transplants.
"I think that we're all really hopeful that we can get a heart in the next few months," Barnes said.
There are over two thousand people in North Texas waiting for organs.
If you want to donate your organs, the best thing you can do is make your family aware of your intentions.
Compiled from AP reports.