What a good little girl!!
I assume you're talking about a diaphragmatic hernia? Hmm. Beauty was successfully spayed with a d. hernia, although, in the end, it killed her because everything but her liver ended up in her chest. D. hernias normally can be closed, but Beauty wouldn't have survived getting everything out of her chest and where it belonged.
Poor Snoopy! It's always something for that little girl!