Conductive Hearing Loss
Ear wax Impaction
Can present with HL, discomfort, ear fullness, or tinnitus.
Managed by:
Avoiding cotton buds
Ear drops (Olive oil or Sodium Bicarb) to soften ear wax
Ear irrigation if drops didn’t work
Eustachian Tube Dysfunction
Presents with HL, popping noise/sensation in ear, ear fullness, and discomfort, and is often associated with a precding viral URTI. Symptoms tend to get worse when the outside pressure gets too high e.g. flying, scuba diving.
Management:
Conservative as recovery occurs once viral URTI clears
Valsalva manoeuvre (holding and blowing nose to open up the tube)
Grommet insertion
Tympanic membrane perforation
Can be caused by Effusion (Barotrauma), Acute trauma (head injury, cotton bud) or Barotrauma (scuba diving, explosive noise).
Other causes
Infection i.e. Otitis media with effusion
Cholesteatoma
Otosclerosis - Remodelling and stiffening of ossicles in the middle ear (mainly affects base of the stapes), therefore preventing sound from being transmitted as effectively
Patients often present with a lower pitch HL that improves with background noise, and tinnitus
Important Links:
https://www.nhs.uk/conditions/hearing-loss/
https://bestpractice.bmj.com/topics/en-gb/434
https://www.enthealth.org/conditions/conductive-hearing-loss/
https://www.nhs.uk/conditions/earwax-build-up/
https://cks.nice.org.uk/topics/earwax/
https://bestpractice.bmj.com/topics/en-gb/1032
https://bestpractice.bmj.com/topics/en-gb/1142
https://www.nhs.uk/conditions/perforated-eardrum/
https://www.nhs.uk/conditions/otosclerosis/
“Ear anatomy” © Iain CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0/)
“Traumatic Perforation of the Tympanic Membrane” © Michael Hawke MD CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
“Large perforated eardrum” © Didier Descouens CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/)