This study compares two medicines, **sugammadex** and **neostigmine**, used to help muscles recover after surgery. It's for kids having their appendix removed at Children's Healthcare of Atlanta. Doctors will decide which medicine to use, and it's important because some medicines can cause problems like a slow heartbeat or muscle issues. **Sugammadex** may help muscles recover faster and let kids eat sooner after surgery. It might also mean less exposure to certain anesthetic gases, which is good for the brain. The study involves children aged 2-17 with appendicitis. Parents must agree to join, and kids can't be allergic to the medicines or have kidney problems. The study is not secret, and doctors will know which medicine your child gets to ensure safe dosing.

• The study is only at Children's Healthcare of Atlanta, for children 2-17 years old.
• Doctors decide which medicine is used, and it's not hidden from them.
• Children must not be allergic or have kidney issues.