As long s the appendix is not packed full of *stuff* I can see it working.
I think in other cases, where the appendix is blocked up, the surgery is the better option, unless they can figure out some way of removing the blockage and cleaning out the infected material.
I wonder how much of that is triggered by our poor diets and if a diet with enough roughage and fiber to keep someone regular would actually help prevent appendicitis.
They used to say it happened due to children swallowing bubble gum. I would think stomach acid would dissolve gum.