Causes of fluctuant hearing loss in AAD


1)      OME

2)      Acute on chronic infection

3)      Fluid collection in middle ear decreasing hearing

4)      Small fluid collection or flake blocking the perforation & improving the hearing

5)      Minimal ossicular discontinuity

6)      ET tube dysfunction


1)      Peri labyrinthine fistula

2)      Labyrinthitis

3)      Associated Meniere disease