The volume of the nasal turbinates can be safely reduced to improve breathing, but the key is to not remove the overlying mucous membranes. Turbinate reduction, as it's called, is achieved through several different means and should not lead to ENS. In fact, I've never seen that occur with merely turbinate reduction.
Turbinectomy (removing a turbinate), on the other hand, is what can lead to Empty Nose Syndrome and should be avoided.
Rhinoplasty and septoplasty by themselves do not lead to ENS, either.
Bottom line: discuss with your surgeon whether the plan is to remove the turbinates or simply reduce them.
All the best,
Pearson Facial Plastic Surgery®