A lot has happened since the last update, but I'd rather not go into too much detail. Lyra is doing okay right now, but she still has a long road ahead.
One of the problems she's experiencing has to do with the new physiology of her circulation following the Glenn procedure. Basically, blood flow returns to the lungs by gravity and the bellows action of her lungs, but because her arteries are small, sometimes the pressure in her lungs causes reduced blood flow. Because of this they put her on a different kind of ventilator that can provide the same volume of air at a lower pressure.
All of her vitals are good, but she's still pretty swollen. She needs to get a lot of the excess fluid out of her body so the doctors can get a better picture of how well she's adapting to the new physiology, which may take a good bit of time.