It is very confusing especially when you are trying to take it all in with a small person creating chaos!
Our son has chronic SI issues and has had his adenoids removed and ear tubes inserted-in two different procedures. Our dr. initially thought the a's would solve the issue, but for a kid who had NEVER had any EI's, just sinus infections...a week after the A surgery he had a double EI!
He had tubes inserted about 3 months after the A surgery...
From what I understand, they often go hand in hand, but a lot of ENT's want to take the let's not do more then we have to approach with kids, (which i appreciate), at the same time it's frustrating when the first thing doesn't work completely.
In a nutshell...the aednoids surgery is a bigger deal, (slightly), so I'm guessing your Dr doesn't want to put your child through that if they can keep things at bay with tubes.