Procedure will be done this Afternoon

Willow had a really hard night. She was up most of the night crying and won't eat. Those of you who know Willow, know that is NOT like her. She is such a laid back baby and sleeps through the night. The doctors were really concerned so they did an echo and chest xray this morning to rule things out. On the echo, they found fluid around the heart (Pericardial Effusion). It is most likely what is causing all of this so later this afternoon they are taking her into the cath lab and sedating her, then removing the fluid with a needle. There are certain risks involved, but for the most part they are hoping this solves what is making Willow so mad. Part of me is relieved there is something we can do. Part of me is hopeful that this is what God is using to take Willow out of heart block. There is a very small chance, but a chance that this is effecting her conduction. Part of me is stressed and angry, like "what else can go wrong?" So I'm asking for a lot of prayers today. Prayers that this procedure is successful, that there are no complications, and that it brings our Willow back. The Willow that is content, happy, eats well, and has regular conduction.