External ear infections

Question 1

cuase of pericondritis

Answer 1

pseudomonas

Question 2

treatment of pericondritis

Answer 2

IV ABX!!!! (bc cartilage thas a terribel blood supply)

amoxicillin is useless!! NT drs get v annoyed when GPs prescribe it

Question 3

how to tell difference between perichondritis and cellulitis

Answer 3

lobe sparing in perichondritis

Question 4

otitis exterma synptoms

Answer 4

severe otalgia, midle ottorhoea, occasional c hearing loss

Question 5

classic hx in otitis externa

Answer 5

swimming

Question 6

feature on exam in otits externa

Answer 6

tender on palpation of the tragus

Question 7

treatment of otitis externa

Answer 7

TOPICAL abx e.g. gent/cipro. (oral abx no good as don’t have good penetration) (again amox is useless)
+ steroid if rly inflamed/stenosed/fever/lymphadenopathy

Question 8

bacteria otitis externa

Answer 8

pseudomonas, staph aureus

Question 9

what is the name for VZV facial nerve

Answer 9

herpeszoster oticus (Ramysey Hunt syndrome)

Question 10

ramysey hunt symptoms

Answer 10

acute LM facial palsy + otalgia + varicella-lie cutaenous lesions
vertigo + deafness
vesicles may be seen on anterior 2/3rds tongue and soft palate

NB CN V, IX, X and cervical branches may be affected at same time due to communications between the nerves

Question 11

treatment ramsey hunt

Answer 11

PRED WITHIN 72 HRS

Question 12

what is malignant otits externa now known as

Answer 12

necrotising otitis externa

Question 13

who does nec otitis externa occur in

Answer 13

90% diabetic
immunocompromised
think if previous otitis externa with worsening pain

Question 14

bacteria that causes nec otitis externa

Answer 14

pseudomonas

Question 15

complication of necrotising otitis externa

Answer 15

temporal bone osteomyelitis

Question 16

symptoms of nec otitis externa

Answer 16

severe pain, tmeporal headache, purulent discharge. NON-RESOLVING W/ WORSENING PAIN

Question 17

Ix nec OE

Answer 17

CT

Question 18

Rx nec OE

Answer 18

IV abx