Little Jagger's Surgery... please pray!

My nephew, Jagger, is scheduled for open heart surgery tomorrow, Wednesday, at 11:00am. Jagger has to be at the hospital at 10am. Mom and Josh's mom, Candy, will get to see him for a bit before surgery, since the start time is later now.
Today, Josh and Emily, along with Jagger, met with the surgeon, went on tour of LA Children's Hospital, and had a myriad of tests done. They found out some new information about Jagger's condition. Not only will the surgeon be repairing the large hole, he will also be rerouting an artery which is not in the right place. They will be using some of his pericardium (the sac which encompasses the heart) to repair the hole. Once in surgery, they will better understand the extent to which this artery needs to be repaired.
Emily and Josh were able to see another patient who had the same surgery. Emily felt like she would now be better prepared for that initial time of seeing Jagger after surgery.
The surgeon maintained that Jagger will only be in the Pediatric ICU for about 24 hours, with an expected hospital stay of 3 days. Please pray that everything will go smoothly tomorrow for Jagger, and the rest of the family. Emily has had a couple of difficult weeks with her pregnancy, so please pray that God's peace will be with her at every turn.
A praise is that they did get into the Ronald McDonald House, so they will be close to the hospital, and only have to pay a minimal charge. Mom and Candy are down there now, along with other members of Josh's family that are in the area.
It's hard to understand why such a little guy has to endure such a trial as this, but I do trust that God's hand is on this family, and am believing that His purposes for us to bring him glory will be accomplished. Please continue to pray...