Generally clinical
Webber and Rinne for middle ear<unk> 
Conductive hearing loss expected
TEED grading system for middle ear<unk> 
Conductive hearing loss expected
Otic barotrauma
Barotrauma of descent
Sinus barotrauma
Pulmonary barotrauma
Tympanic membrane rupture
Chylous leak
Mask squeeze
Missile embolism