My daughter has angelman's syndrome, she is due to have a gastrostomy, is this a common procedure?

Yes: Children who are unable or who are unsafe to take feeds by mouth often undergo placement of a gastrostomy tube. This is a common procedure in such children.

Yes: Sometimes the gastrostomy tube surgery is done in conjunction with a fundoplication. If she has reflux then most likely they should be done together. Doing a g-tube alone may promote vomiting and inability to feed your child. Check with your doctor to see if she has been evaluated for reflux.