otology Flashcards
What is the treatment for acute otitis externa
Sofradex, Gentisone HC ear drops or Otomize spray
Cilodex if perforated tympanic membrane
What is teh treatment for fungal otitis externa
- Microsuction
- keep ears dry
- Topical clotrimazole or nystatin ear drops for 2 weeks
What is malignant/ necrotising otitis externa
Infection has spread from the ear canal to the bone causing osteomyelitis
What is the common presentation for malignant otitis externa
- Diabetic or immune supressed patient
- Long standing process
- Granulation tissue
- Systemic upset
- cranial nerve defects
- Increasing pain
What is exostoses
Surfers ear - abnormal bone growth in ear due to exposure to cold water
What is an osteoma
Benign bone tumour which doesn’t need removal if asymptomatic
What is seen on otoscopy of otitis media with effusion (glue ear)
Characteristic bubbles in the effusion
What is the treatment for otitis media with effusion
Grommet inserion to allow ventilation
What is the treatment for chronic tympanic memebrane perforation and discharge
Myringoplasty - close the hole in the ruptured tympanic membrane
What is tympanoscerosis
Thickening of the tympanic membrane
What is retractive otitis media
Eustachian tube has sucked out the air so the tympanic membrane has become a lot thinner and plastered onto the middle ear which causes erosion on the ossicles
How long does the vertigo last in BPPV
seconds and positional
How long odes the vertigo last in Menieres
minutes to hours
How long does the vertigo last in vestibular neuronitis
Days
What is the treatment of Meniere’s disease
Betahistine
