Conductive Hearing Loss

Question 1

What is conductive hearing loss

Answer 1

Dysfunction of external or middle ear

Question 2

What is the most common cause of conductive hearing loss

Answer 2

Obstruction (cerumen impaction)
1. Transient Eustachian tube dysfunction from a URI

Question 3

What is the cause of persistent conductive hearing loss

Answer 3

1. Chronic ear infection
2. Trauma
3. Otosclerosis
   *tx usually with medical therapy, surgery or both

Question 4

What are the causes of obstruction or mass loading conductive hearing loss

Answer 4

Obstruction
1. Swelling of canal
2. Cerumen
3. Foreign body
Mass loading
1. Middle ear effusion
2. Infection

Question 5

What are the causes of stiffness or discontinuity conductive hearing loss

Answer 5

Stiffness
1. Tumors
2. Otosclerosis
3. Cholesteatoma
Discontinuity
1. Ossicular disruption