ENT Flashcards
What is otitis media?
Infection and inflammation of the middle ear
When does otitis media typically present?
Paediatric presentation post URTI
What is the most common cause of acute otitis media in children?
Strep pneumoniae (pneumococcus)
What are some of the bacterial causes of otitis media?
1) Streptococcus pneumoniae
2) Haemophilus influenzae
3) Moraxella catarrhalis
What are some of the viral causes of otitis media (either by causing the infection directly or by predisposing the ear to bacterial infection)?
1) Respiratory syncytial virus (RSV)
2) Rhinovirus
3) Influenza virus
4) Adenovirus
How does otitis media present?
Rapid onset:
1) Deep seated pain
2) Impaired hearing
3) Aural fullness
4) Systemic illness/fever
5) Irritability
6) Anorexia
7) Vomiting
8) Discharge with tympanic membrane perforation
What are potential complications of otitis media?
1) LMN facial nerve palsy
2) Mastoiditis
3) Petrositis - infection spreading to the apex of the petrous temporal bone
4) Labyrinthitis - inflammation of the semicircular canals leading to the symptoms of vertigo, nausea, vomiting and imbalance
How do you diagnose otitis media?
Otoscopy
What would you see on otoscopy of otitis media?
1) Tympanic membrane shows injection of blood vessels
2) Diffuse erythema
How do you manage acute otitis media?
1) Hospital admission
2) Analgesia and antipyretics - most children
3) Abx - systemically unwell, high probability of complications e.g. immunocompromised
When would you admit to hospital for otitis media?
1) Children < 3 months with temp > 38
2) Children with suspected acute complications
3) Consider if very systemically unwell