ENT Flashcards
(38 cards)
List some causes of sensorineural hearing loss
Perinatal abnormalities Infective/Inflammatory (meningitis) Trauma Drugs - aminoglycosides Neoplasia - vestibular schwannoma Idiopathic - Meniere's Ageing
List some causes of conductive hearing loss
Wax Otitis externa Foreign Bodies MIddle ear effusion (glue ear) Chronic suppurative otitis media Otosclerosis Ossucular disruption
What foreign body must you be aware of
Hearing aid betteries - acid can corrode the skin.
Patient must go to hospital
Organisms causing otitis externa
S. aureus
Pseudomonas aeruginosa
Presentation of otitis externa
Red, swollen, eczematous canal
Treatment of otitis externa
Topical Abx (aminoglycosides not used if perforated tympanic membrane)
Topical Steroid
Severe - microsuction in ENT clinic
If extensively swollen use an ear wick
Oral abx if infecton is spreading
IV abx if malignant
Otitis media presentation
Otalgia - ear pain
Fever
Deafness
Otorrhoea - ear discharge
Complication of otitis media
mastoididtis
Otitis media Mx
Oral amox (erythromycin 2nd line) if:
- lasting longer than 4 days
- Immunocompromised
- Younger than 2 yrs
- Perforation
- Systemically unwell
Timescale of otitis media with effusion (glue ear)
Fluid in middle ear for less than 3 months
Symptoms of glue ear
Conductive hearing loss
Prolonged cases = speech development
Mild dizziness or clumsiness
Mx of glue ear
Conservative
If deafness persists = hearing aid and grommet (drains the fluid)
Adenoidectomy - last resort
Pathophysiology of cholesteatoma
Squamous epithelium of external ear migrates to middle ear and forms a mass - erodes bone and soft tissue
What does cholesteotoma present with?
Smelly discharge
Severe hearing loss
Dizziness
Cholesteatoma Mx
Surgery. Drops do not help
What conditions present with tinnitis
Meniere's Osteosclerosis Acoustic neuroma Hearing loss Drugs
What kind of drugs can cause tinnitus?
Aspirin, Aminoglycosides, Loop diuretics, Quinine
What is an acoustic neuroma
Hearing loss, vertigo, tinnitus, headaches - deep earache
Absent corneal reflex
Assoc. with NF2
Signs of osteosclerosis
Onset 20-40
Conductive deafness
Tinnitus
Normal tympanic membrane
Mx of tinnitus
Hearing aids,
White noise generator
BPPV investigation and management
Ix and diagnosis- Dix Hallpike
Mx - Epley manoevre and vestibular exercises
Acute attack of meniere’s Mx?
Prochlorperazine
Prevention of Meniere’s
Betahistidine and Vestibular exercises
Signs of acute labrynthitis
Dizziness
Deafness
Nausea
Recent viral infection
Nystagmus
Lasts for days