I too was worried when I saw her name, but so nice to hear she is well. Amazing the love we invest in our pets.
My cat had an accident over the holidays--he had his abdomen ripped open, probably on some kind of tool stored in the basement during some renovations. It was about 3 inches long, and right down to the peritoneum, so he literally almost had his guts ripped out. Just blithly licked it clean. $500 later, and some TLC, he is fine again. He's young and resilient. But I invested quite alot of anxiety into that incident. I can imagine what you have been through with Maggie.