ENT-Hugus Flashcards
Conductive hearing loss
- Define
- General tx:
dysfunction of external/middle ear
i.e obstruction, mid-ear effusion, scarring, ossicular disruption, otosclerosis (abn bone formation)
Generally corrected with medical or surgical therapy
Sensorineural hearing loss
- define
- sx/sxs
- tx
- deterioration of cochlea or vesibulocochlear nerve Causes majority of hearing losses
- difficulty distinguishing foreground voices against noisy backgrounds, loss of directionality of sound, perception that people mumble, difficulty when on phone
- Generally permanent: depends on etiology
Neural cause of hearing loss
- Cause
- risk factors
- Tx
- Lesions of cochlear nerve VIII or central pathway
- MS, cerebrovasc disease, acoustic neuroma
- Etiology dependent
Sensory cause of hearing loss
- cause
- risk factors
- tx
damage or deficiency of cochlea, usually loss of hair cells.
- Presbycusis (age related) from degeneration of cochlea, noise trauma, otoxicity
- hearing aids/implants
Weber test
- unilateral conductive hearing loss
vs
- unilateral sensorineural hearing loss
Midline of head
- sound lateralizes (is heard in) the bad ear
- sounds lateralizes to good ear
Rinne test
- Conductive
vs.
- Sensorineural
mastoid: infront of ear
1. BC>AC (bone conduction vs air conduction)
2. BC
External ear hematoma
- blunt trauma, blood accumulates in subperichondrial space and can compromise blood flow to cartilage. Neocartilage deposisted after 7-10 days
- Immediate surgical evacuation with pressure dressing
- Cauliflower ear (necrosis), infection
What can be used to paralyze insect in ear before removal?
2% lidocaine
Tinnitus
- Define
- theories
- etiologies
- ringing/buzzing sound or whooshing in case of pulsatile tinnitus
- Middle ear pressure derangement, vascular d/o, neural firing.
- High frequency sensorineural hearing loss, ototoxic meds, infxn, ischemia, acoustic neuroma
Eustachian tube dysfxn (ETD)
- Define
- Risk factors
- failure of ET to open properly (more common in kids due to the horizontal placement of tube vs in vertical in adults)
- rhinitis, URI, sinusitis, chronic OM, bad anatomy
ETD
- sx/sxs
- tx
- fullness, pressure, otalgia(ear pain), tinnitus, mild acute hearing loss. Retracted TM, decreased mobility with insufflation
- decongestants(short term) nasal spray, valsalva (long term)
Barotrauma
- define
- risk factors
- sxs/exam findings
- caused by air/water pressure
- flying, diving, explosions
- Acute pain usually resolves in hours and mild/moderate hearing loss
exam: hyperamia (excess blood supplying specific organ), edema, ecchymosis of mid ear mucosa, medial displacement of TM, fluid in mid ear, TM perforation in severe cases. Resolves on its own 2-3 weeks
TM perforation
- trauma, mid ear infxn
- if trauma, 90% heal spontaneously, otherwise surgery. Keep ears dry
- Ear infxn (chronic), CT temporal, likely need abx, tx with topical abx if otorrhea (drainage) present. Keep ears dry
*AOM (acute otitis media)
- MC age group?
- risk factors?
- most common reason for abx for kids. Boys>girls 6-24 months of age
- day care, immune related, exposure to smoke
AOM
- define
- pathophys
- MC pathogens
- acute infxn of mid ear fluid
- pt has URI, inflamm edema of mucosa, eustachian tube obstruction, - midd ear pressure, build up secretions, accumulates in mid ear space- virus/bacteria enters space
- Bacterial: strep pneumonia, h. influenza, m. catarrhalis
viral: RSV, rhinovirus, influenza, adenovirus
AOM
- Clinical manifestation
- tx
- fever, irritated, restlessness, HA, ear pain, buldging/erythematous TM, HEARING LOSS, decreased mobility with pneumotoscopy
- analgesics/ abx- Amoxicillin (if 2> or TM perf 10 day abx, otherwise 5-7)
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Chronic Otitis Media
- define/cause
- Sx
- pathogen
- chronic drainage from middle ear associated with TM perf. Often preceded by AOM that isnt diagnosed or treated properly
- May have hearing loss, not usually painful, common in young kids <2
- Psudomonas a., ptoteus, S aureus
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Chronic otitis media
- exam findings
- tx
- TM perf+purulent discharge
- Aural toilet (suction, dry mop, earwick, gentle syringe, to remove moisture and debris) + topical quinolone
Abx for 2 weeks: otoflaxin otic solution or ciprofloxacin otic solution
Serous Otitis Media (SOM)
- Collection of non infected fluid in mid ear. ETD prolonged period. Resultant negative pressure results in fluid
- Hearing loss (conductive), speech/;anguage delay, tinnitus, “fullness” in ears
- decongestant, myringotomy for chronic cases
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Otitis externa
- “Swimmer’s ear”. Otalgia of ext ear, pruritus, hearing loss. Water expsoure, mechanical trauma
- erythema and edema in ear canal with exudate.
(tugging on ear elicit pain) - Pseudomona a, s epidermidis, s aureus
- Cortisporin drops not to be used it TM perf.
or Cipro HC first line
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What is a common water loving bactera?
pseudomonas aeruginosa
Cholesteatoma
- Define/cause
- sx
- exam findings
- tx
- fast growing kertainized epithel tissue in mid ear can be chronically infected and erode into bone (can cause perm hearing loss).
Occurs d/t ET dysfunction (retraction pocket)
- hearing loss, otorrhea (ear drainage), may be asympto.
- whitish behind TM, chronic otorrhea
- surgical removal + tympanoplasty
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Mastoiditis
- define/pathogen causing
- sx
- tx
- bacterial infxn of mastoid air cells (strep. pneumo, strep. pyogene, S. aureus ). Typically complication of AOM
- postauricular tenderness, erythema, swelling, fever, otalgia, may be toxic
- CT if unclear, culture, ENT consult, IV abx, surgery
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Vertigo
In different etiologies and their typical duration
“true spinning”- sign of vestibular disease.
Ex and durations:
BPPV (benign prox position vetigo)- seconds
Meniere’s disease- 30 min-12 hr
Labyrinthitis- days-weeks
Acoustic neuroma (nerve tumor)- days-weeks
otoxocity (chemo)- months
MS- months
Psychogenic- years
BPPV
- Define/duration
- dx
- tx
- Common peripheral vertigo
lasts only seconds.
- dix-hallpile, torsional nystagmus test
- Epley maneuver, meclizine, vestibular therapy
Meniere’s diease
- Define
- sx
- dx
- tx
- Episodic vertigo, hearing loss, tinnitus, n/v. Endolympth pressure
- Usually unilateral, wax/wane (+/-), N/V
- Consider audiogram and MRI r/o others
- CATS (caffeine, ETOH, tension, salt), low salt diet, diuretic, +/- surgery
Labyrinthitis
- define
- sx
- etiology
- tx
- acute onset of continous and severe vertigo may last days to a week.
- May have hearing loss and tinnitus, N/V
- often follows URI, otherwise unknown
- vestibular suppressants
Acoustic Neuroma
- Cause
- sx
- dx/labs
- tx
- Tumor of CN VIII, cause of Sensorineural hearing loss (SNHL).
- continous disequilibrium than episodic vertigo, unilateral hearing loss with deterioration of speech discrimination
- gadonilium- enhanced MRI
- Surgical excision- stereotactic radiation therapy
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allergic rhinitis
hay fever. pollens, dust, grasses.
- **pale and boggy nasal mucosa, +/- nasal polyps
- nasal corticosteroids, flonase, antihistamines, decongestants.
Nasal polyps
- define
- Triad?
- tx
- pale, edematous, mucosal covered masses, like grapes (in kids indicative of CF)
- asthma, NSAID allergy, nasal polyps
- topical streoids, surgery
Epistaxis
tx?
Nose bleed MC Kiesselbach’s plexus (anterior septum)
- pressure while leaning fwd 10 min. Vasocontrict nasal spray or silver nitrate cautery. Nasal packing, rhinorocket.
1-2 days. if on blood thinners - 5 days
Bacteria that may cause sinusitus?
Strep pneumo, H influenza, M catarrhalis, Stap aureus
Duration of:
- acute rhinosinusitis
- Subacute rhino
- Chronic rhino
- Recurrent acute rhino
- <4 weeks
- 4-12
- 12<
- 4 or more episodes
Oral Candidas (thrush)
- define
- risk factors
- sx
- dx
- tx
- creamy white curd like patcches-scrapes off (Candida Albicans)
- DM, abx, steroids, anemia, chemo
- painful sore tongue/mouth/throat.
- wet prep with KOH
- Nystatin oral suspension, fluconazole
Aphthous Ulcer
- Define
- Causes
- Tx
- Canker sore. 2-6 mm painful round ulcerations with peripheral rim of eythema and a central yellowish exudate. Uknown pathogens
- physical (fever) or mental stress, diet
- Heals on its own 1-3 weeks. Sx relief: oragel topical pain relief, topical steroids
Oral herpes simplex
- define
- Risk factors
- tx
- HSV type 1
- immunocompromised, trauma, stress
- painful papules with vesicles that rupture
- antivirals (Acyclovir)
Leukoplakia
- define
- risk factors
- tx
- MC pre malignant lesion of oral caivty. white lesions cannot be removed by rubbing mucosa. Can be on tongue or buccal mucosa
- Tobacco/ETOH use, dentures, aids
- d/c use of tobacco and ETOH, bx may be needed for peristent lesion and surgical excision.
Acute pharyngitis
- Viral vs bacterial
- dx
- tx
- 90% virus (coryza, lack exudate low grade fever, +/- LAD)
*10% bacterial (MC: group A strep) - complications scarlet/rheumatic fever, Glomerulonephritis (inflamm of kidney)
- rapid strep, Centor criteria
- OTC analgesics. Abx if bacterial
- Penicillin, Amoxicillin for kids, Azithromycin if PNC allergy
Describe Centor Criteria
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Mononucleosis
- Name of virus
- sx
- labs to order
- Epstein-Barr virus
- fever, pharyngitis, LAD, malaise, HSM, odynophagia (diff swallowing)
- Monospot, CBC, anti-EBV titers
Peritonsillar Abscess
- define
- sx
- tx
- collection of pus b/w capsule of the palatine tonsil and pharyngeal muscles (GABHS and resp anaerobes)
- trismus (locked jaw), fever, drooling, muffled voice, odynophagia, hot potato voice
- Consult ENT, I&D, po abx/IV abx. +/- tonsillectomy
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Sialolithiasis
- define/MC?
- RF
- sx
- tx
- stone formation in salivary gland duct. MC wharton’s duct (see image)
- dehydration and anticholingergic meds.
- postprandial pain and/or swelling
- hydration, OTCanalgesia, lemon drops (to salivate), surgery
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Sialadenitis
- define
- sx
- tx
- Infxn/inflamm of salivary gland d/t ductal obstruction. Bacterial (S Aureus) viral (Mumps)
- pain/swelling with meals, purulent discharge may be massaged from duct, +/- systemic sx (fever)
- warm compress, lemon drops, hydration, gland massage. Abx
Laryngitis
- define
- sx
- tx
- usually viral, follows URI
- Episodic Aphonia, hoarseness, no pain, dry cough
- rest, hydration, humidification, abx not indicated!
Epiglottitis
- define/pathogen?
- sx
- tx
- Bacterial H. Influenzae type B or viral
- rapidly developing sore throat. Tripod position, dysphagia, drooling, fever, systemic toxicity, swollen cherry epiglottis
- “thumb print” sign on xray
- Maintain AIRWAY. Consutl ENT. IV abx
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