Otolaryngology Flashcards
(211 cards)
External ear causes of ear pain?
Cerumen Impaction Otitis Externa Cellulitis of the Auricle Herpes Zoster Oticus Malignant OE
Signs/symptoms of otitis externa?
Infection of the external ear canal – recent swimming, pain in the tragus, feeling of fullness in the ear, pruritis in the ear canal, hearing loss, swelling, erythema/macerated ear canal, discharge, may see erythematous TM
Signs/symptoms of herpes zoster oticus?
Burning pain, hyperesthesia, pruritis preceding vesicle eruption, headache/fever/malaise/fatigue
What causes 99% of malignant OE?
Pseudomonas
When should you suspect malignant OE?
Immunodeficient + insulin dependent DM + otalgia + facial nerve involved
Signs/symptoms of malignant OE?
Otalgia and purulent otorrhea that is refractory to medical therapy
Tx of malignant OE?
Requires hospital admission, debridement, IV antibiotics, hyperbaric O2
Middle ear causes of ear pain?
AOM, Cholesteatoma, Barotrauma, Mastoiditis, Auricular Hematoma
What is malignant OE?
Osteomyelitis of the temporal bone
What is cholesteatoma?
A cyst composed of keratinized desquamated epithelial cells occurring in the middle ear, may present with sense of ear fullness and presence of a red or yellow mass typically involving the posterior aspect of the TM
Signs and symptoms of cholesteatoma?
Symptoms:
- Progressive hearing loss (predominantly conductive, although may get SNHL in late stage)
- Otalgia, aural fullness, fever
Signs
- Retraction pocket in TM, may contain keratin debris
- TM perforation
- Granulation tissue, polyp visible on otoscopy
- Malodourous, unilateral otorrhea
What is barotrauma?
History of rapid change in air pressure (eg, air travel, scuba diving). Often hemorrhage on or behind TM
What is mastoiditis and when is the onset?
Infection (usually subperiosteal) of mastoid air cells, most commonly seen approximately two wk after onset of untreated or inadequately treated AOM (suppurative)
Symptoms of mastoiditis?
Otorrhea, tenderness to pressure over the mastoid , retroauricular swelling with protruding ear, fever, hearingloss, ± TM perforation (late)
Nonotologic causes of ear pain?
Tumors of the External Auditory Canal
TMJ Dysfunction
Oropharyngeal Infections
Who should be evaluated for the possibility of a tumor in the ear canal?
Patients that appear to have a relapsing or unremitting case of otitis externa or perforated otitis media should be evaluated for the possibility of a tumor in the ear canal
Symptoms of TMJ dysfunction?
Pain, crepitus at TMI exacerbated by jaw movement, palpation of the TMJ region may reveal tenderness, or a palpable clicking sensation with joint motion
What should be done on physical exam for ear pain?
o Ear: Pinna + mastoid, ear canal and TM
o Throat
o TMJ
o Neck - LN
What is AOM?
Infection of middle ear caused by fluid stasis due to lack of middle ear drainage
▪ Often preceded by URTI
Risk factors of AOM?
Non-modifiable: young age, family history of OM, prematurity, orofacial abnormalities, immunodeficiencies, Down syndrome, race, and ethnicity
Modifiable: lack of breastfeeding, daycare attendance, household crowding, exposure to cigarette smoke or air pollution, pacifier use
Common organisms of AOM?
S. Pneumo > H. Influenza > Moraxella Catarhallis > GAS
Which organism is most likely pathogen associated with perforate TMs?
GAS
Triad for AOM?
Triad of otalgia + fever (especially in younger children) + conductive hearing loss;
What might be seen on otoscope for AOM?
Hyperemia, bulging, pus may be seen behind TM, loss of landmarks (e.g. handle and long process of malleus not visible)