14: 18-month-old female with congestion Flashcards
Otits media with effusion
Bilateral otitis media with effusion (OME) is best described as fluid in the middle ear space without signs and symptoms of acute inflammation (bulging or fullness of the tympanic membrane, fever and/or otalgia).
Normal ear
- A normal middle ear generally has a translucent tympanic membrane (TM) that is in a neutral or retracted position.
- It has normal mobility.
Otitis externa
- “swimmer’s ear,” is manifested by an edematous external auditory canal, and pain with traction on the ear lobe.
- An external otitis can occasionally follow perforation of the TM in AOM.
Acute otitis media
- -A diagnosis of acute otitis media is supported by moderate or severe bulging of the tympanic membrane; OR mild bulging in the context of recent onset of pain or intense erythema of the TM.
- -AOM should not be diagnosed in the the absence of middle ear effusion, as determined by pneumatic otoscopy or tympanometry.
Risk factors for acute otitis media (AOM) include:
- Day care attendance
- Tobacco exposure
- Allergies
- Bottle propping at bedtime
- Pacifier use
- Drinking formula from a bottle rather than breastfeeding
- Significant family history of AOM
- Male gender
- Lower socioeconomic status
- Respiratory allergies
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Bacterial causes of AOM are found in the following percentages:
Streptococcus pneumoniae 25-50% Haemophilus influenzae, nontypeable 15-52% Moraxella catarrhalis 3-20% Streptococcus pyogenes < 5%
Middle ear effusions may persist at these rates for several weeks or even months after treatment with antibiotics.
1 month :30-50%
2 months :15-25%
3 months :8-15%
Potential Testing Performed by an Audiologist: Tympanogram (1/4)
An objective method for evaluation of the mobility of the tympanic membrane.
Potential Testing Performed by an Audiologist: Conventional audiometry (2/4)
Behavioral test measuring auditory thresholds in response to speech and frequency- specific stimuli presented through earphones.
Potential Testing Performed by an Audiologist: Visual reinforcement audiometry (VRQ) (3/4)
Behavioral test measuring response of the child to speech and frequency-specific stimuli presented through speakers in a sound-treated room.
Potential Testing Performed by an Audiologist: Otoacoustic emissions (OAE) (4/4)
Physiologic test measuring cochlear function in response to presentation of a stimulus. Primarily used in newborn assessments.
What you should look for in an ear exam:
C = Color (gray, white, red or yellow) O = Other (bubbles, air-fluid interface, scarring, or perforation) M = Mobility (absent, reduced, normal, or hypermobile) P = Position (normal, retracted, or bulging) T = Translucency (opaque or translucent)
Antibiotic Therapy for AOM
Amoxicillin remains the preferred first-line therapy for AOM because at appropriate dosages it is effective against susceptible and intermediately resistant S. Pneumoniae due to alterations in their penicillin-binding proteins. Amoxicillin also:
–is inexpensive,
–tastes good,
–has a relatively good safety profile, and
–is narrow in its spectrum of antibacterial activity.
The majority of cases of AOM resolve spontaneously. Treatment with antibiotics has been shown to shorten duration of symptoms (otalgia).
Use antibiotic therapy in these cases
AOM with severe symptoms, defined as:
- -Toxic-appearing child, or
- -Persistent ear pain for 48 hours, or
- -Fever > 39 C within the past 48 hours
OME persisting 4 months or longer and accompanied by hearing loss, documented language or other developmental delay, risk of developmental delay, or structural abnormality of the tympanic membrane or middle ear.
Tympanostomy tube placement should be considered in children