ENT Flashcards
what is BPPV?
vertigo triggered by change in head position e.g. rolling over in bed or gazing upwards
diagnosis of BPPV?
Dix hallpike manoeuvre
mx of BPPV?
Epley manoeuvre- moves debris out of semi-circular canals and back into utricle
causes of vertigo?
BPPV
Meniere’s disease
vetibular neuronitis
acoustic neuroma
What is Meniere’s disease
excess fluid in the inner ear
features of Meniere’s disease?
recurrent episodes of tinnitus and hearing loss sensation of aural fullness nystagmus positive Romberg's test episodes last minutes to hours
mx of Meniere’s disease?
inform DVLA
acute attacks -> buccal or IM prochlorazone
prevention-> betahistine and vestibular rehab exercises
what is vestibular neuronitis?
infection of vestibular nerve- may follow URTI
Features of VN?
recurrent vertigo attacks lasting hours or days
N&V
horizontal nystagmus away from the affected side
no hearing loss or tinnitus
mx of VN?
- vestibular rehab exercises
- buccal or IM prochlorperazine is often used to provide rapid relief for severe cases
-a short oral course of prochlorperazine, or an antihistamine (cinnarizine, cyclizine, or promethazine) may be used to alleviate less severe cases
what is vestibular schwannoma?
benign tumour of the schwann cells of the vestibulocochlear nerve
also known as acoustic neuroma
features of vestibular schwannoma?
cranial nerve VIII: hearing loss, vertigo, tinnitus
cranial nerve V: absent corneal reflex
cranial nerve VII: facial palsy
what is bilateral vestibular schwannomas associated with?
neurofibromatosis type 2
Ix of vestibular schwannoma?
MRI of the cerebellopontine angle
mx of vestibular schwannoma?
surgery, radiotherapy or observation
other causes of vertigo?
viral labyrinthitis posterior circulation stroke ototoxicity e.g. MS MS trauma
differentials of facial pain?
bell's palsy sinusitis trigeminal neuralgia atypical facial pain ramsey hunt syndrome rhinosinusitis TMJ syndrome nasal injury
what is bell’s palsy?
LMN facial nerve palsy (forehead affected)
acute, unilateral and idiopathic
RFs for bells palsy?
pregnant women
20-40 years
features of bell’s palsy?
LMN facial palsy- drooping face symptoms
post-auricular pain, altered taste, dry eyes, hyperacusis
mx of bell’s palsy?
prednisolone 1mg/kg for 10 days within 72 hours on onset
eye care- artificial tears and eye lubricants
refer if suspicious
what is sinusitis?
inflammation of the mucous membranes of the paranasal sinuses
common infectious agents of sinusitis?
strep pneumoniae
h. influenzae
rhinovirus
features of sinusitis?
- facial pain- typically frontal pressure pain which is worse on bending forward
- nasal discharge: usually thick and purulent
- nasal obstruction
mx of acute sinusitis?
analgesia
intranasal decongestants
oral Abx for severe presentations- phenoxymethylpenicillin or co-amoxiclav
what is trigeminal neuralgia?
a pain syndrome characterised by severe unilateral pain
causes of trigeminal neuralgia?
majority are idiopathic but compression of trigeminal roots by tumours or vascular problems may occur
features of trigeminal neuralgia?
electric shock-like pains brought on by light touch, washing, shaving etc
mx of trigeminal neuralgia?
1st line- carbamazepine
failure to respond to treatment or atypical features e.g. <50 years old should prompt referral to neurology
what is atypical facial pain?
diagnosis of elimination, functional cause
iunilateral pain, poorly localised, continuous
what is ramsay hunt syndrome?
herpes zoster oticus
caused by reactivation of the varicella zoster virus in the geniculate ganglion of the 7th cranial nerve
features of ramsay hunt syndrome?
auricular pain is often first feature
facial nerve palsy
vesicular rash around ear
other features include vertigo and tinnitus
mx of ramsay hunt syndrome?
oral acyclovir and corticosteroids
RFs for ramsay hunt syndrome?
elderly, immunocompromised
what is rhinosinusitis?
inflammation in the nose and paranasal sinuses with >2 of :
- nasal blockage
- facial pressure
- loss of smell
- endoscopic or CT changes
also runny nose, sneezing, headaches
when to refer for biopsy in rhinosinusitis?
a single unilaterl polyp
mx of rhinosinusitis?
with polyps- beclomethasone, fluticasone, long term Abx, endoscopic sinus surgery
w/o polyps- intranasal corticosteroids, nasal saline irrigation
what is allergic rhinosinusitis?
caused by IgE mediated inflammation, can have nasal polyps and swollen turbinates
tx= loratadine, saline irrigation, intranasal corticosteroids (mometasone)
what is TMJ syndrome?
biopsychosocial disorder
earache, facial pain and joint clicking
tx of TMJ syndrome?
simple analgesia
PT
CBT
oral splinting
what is Samter’s triad?
association of asthma, aspirin sensitivity and nasal polyps
what is nasal septal haematoma?
an important complication of nasal trauma that should be looked for
describes the development of a haematoma between the septal cartilage and overlying perichondrium
features of nasal septal haematoma?
nasal obstruction
pain and rhinorrhoea
bilateral red swelling from nasal septum
mx of septal haematoma?
surgical drainage
IV antibiotics
if suspect CSF rhinorrhoea- test for glucose in fluid
complications of septal haematoma?
irreversible septal necrosis -> saddle-nose deformity
differentials for deafness
ear wax otitis media (+ glue ear) otitis externa presbycusis otosclerosis Meniere's disease drug ototoxicity noise damage acoustic neuroma
what is conductive deafness?
pathology in outer or middle ear e.g. glue ear, otosclerosis
bone conduction> air conduction on Rinnes
sound is localised to the affected side on webers
what is sersorineural deafness?
Sensorineural hearing loss occurs due to abnormalities in the cochlea, auditory nerve or other structures in the neural pathway leading from the inner ear to the auditory cortex.
ac>bc
Sound is localised to the unaffected side if unilateral sensorineural deafness