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Approach to the Critical Patient
Immediate priorities
Triage and stabilization
Airway and breathing compromise
Stridor
Respiratory distress
Circulatory instability
Hypotension
Toxic appearance
High risk infection patterns
Suspected meningitis
Suspected mastoiditis
Suspected sepsis
Pain and fever control
Early analgesia
Antipyretics for discomfort
Red flags and escalation triggers
Urgent ENT or ED escalation triggers
Complications
Postauricular swelling
Pinna displacement
Mastoid tenderness
Facial nerve weakness
Vertigo with nystagmus
Severe persistent otalgia
Intracranial concern
Neck stiffness
Altered mental status
Severe headache
Persistent vomiting
Immunocompromised state
Neutropenia
Post transplant
High dose steroids
Neonates and young infants
Age under 3 months with fever
Poor feeding
Diagnostic confirmation at bedside
Otoscopy essentials
Middle ear effusion evidence
Bulging tympanic membrane
Reduced mobility on pneumatic otoscopy
Air fluid level behind tympanic membrane
Otorrhea not due to otitis externa
Acute inflammation evidence
Marked erythema of tympanic membrane
Distinct otalgia onset within 48 hours
Alternative diagnoses exclusion
Otitis externa findings
Cerumen impaction obscuring membrane
Foreign body
History
Core history elements
Symptom pattern
Otalgia
Onset within 48 hours
Severity and sleep disruption
Fever
Peak temperature
Duration
Otorrhea
Spontaneous versus post instrumentation
Hearing symptoms
Decreased hearing
Aural fullness
Upper respiratory symptoms
Rhinorrhea
Cough
Risk factors and modifiers
Host and exposure risks
Age under 2 years
Higher recurrence risk
Higher complication risk
Daycare attendance
Higher exposure burden
Tobacco smoke exposure
Increased AOM risk
Lack of breastfeeding in infancy
Increased AOM risk
Craniofacial anomalies
Cleft palate
Down syndrome
Immunocompromise
Increased severe disease risk
Prior AOM episodes
Antibiotic exposures in past 30 days
Medication and allergy context
Antibiotic context
Prior antibiotics in last 30 days
Increased beta lactam resistance risk
Penicillin allergy details
Immediate hypersensitivity features
Delayed rash only history
Analgesic and antipyretic use
Recent dosing
Response
Physical Exam
Ear and head exam
Otoscopic findings
Tympanic membrane position
Bulging
Neutral
Retracted
Tympanic membrane appearance
Opacification
Erythema
Perforation
Middle ear effusion markers
Air fluid level
Bubbles
Canal assessment
Edema and debris suggesting otitis externa
Cerumen obstruction
Pneumatic otoscopy
Mobility
Decreased or absent
Normal mobility suggesting no effusion
Mastoid and periauricular exam
Mastoid tenderness
Postauricular erythema or swelling
Pinna position
General exam and complications screen
Systemic status
Hydration
Toxic appearance
Vital sign abnormalities
Neurologic and cranial nerve screen
Facial nerve function
Meningeal signs
Gait and balance
Differential Diagnosis
Ear pain and fever differential
Infectious and inflammatory
Otitis media with effusion
ICD-10 H65
Effusion without acute inflammation
Otitis externa
ICD-10 H60
Canal tenderness and edema
Acute otitis media
ICD-10 H66.0 acute suppurative otitis media
SNOMED CT acute otitis media
Bullous myringitis
Vesicles on tympanic membrane
Mastoiditis
ICD-10 H70
Postauricular swelling and tenderness
Referred otalgia
Dental disease
Temporomandibular disorder
Pharyngitis or tonsillitis
Cervical lymphadenitis
Serious mimics and complications
Intracranial and deep infection
Meningitis
Intracranial abscess
Lateral sinus thrombosis
Other
Herpes zoster oticus Ramsay Hunt syndrome
Cholesteatoma
Temporal bone trauma
Laboratory Tests
When labs are useful
Laboratory strategy
Typical uncomplicated AOM
No routine labs
Clinical diagnosis predominates
Systemic illness or young infant
Broader infectious evaluation based on age and appearance
Targeted tests for complications
Complication evaluation labs
Complete blood count for suspected mastoiditis or systemic infection
Leukocytosis supporting bacterial infection
Normal count not excluding complication
C reactive protein for suspected mastoiditis or intracranial spread
Elevated value supporting inflammation
Trend utility in admitted patients
Blood cultures for toxic appearance or sepsis physiology
Higher yield in severe systemic illness
Low yield in uncomplicated AOM
Microbiology considerations
Culture indications
Otorrhea with tympanic membrane perforation
Swab culture for refractory or severe cases
Limited correlation with middle ear pathogens
Tympanocentesis
Refractory severe AOM
Immunocompromised patient with failure of therapy
Diagnostic Tests
Scoring Systems
Severity and decision structure
AAP treatment decision framework
Severe signs definition
Moderate to severe otalgia
Otalgia for 48 hours or more
Temperature 39.0 C or higher
Observation option criteria
Age 6 to 23 months with unilateral AOM without severe signs
Age 24 months or older with unilateral or bilateral AOM without severe signs
Reliable follow up within 48 to 72 hours
Immediate antibiotics criteria
Age under 6 months
Severe signs at any age
Bilateral AOM in age 6 to 23 months
Otorrhea associated with AOM
MRI
MRI role
Indications
Suspected intracranial complication
Suspected dural venous sinus thrombosis
Typical uncomplicated AOM
Not indicated
Interpretation targets
Intracranial abscess
Meningeal enhancement
Venous sinus thrombosis
CT
CT role
Indications
Suspected acute mastoiditis
Suspected subperiosteal abscess
Suspected bony destruction
Protocol considerations
Temporal bone CT when mastoid complication suspected
Contrast CT head when intracranial extension suspected
Typical uncomplicated AOM
Not indicated
Ultrasound
Ultrasound role
Periauricular swelling evaluation
Abscess versus cellulitis in superficial tissues
Middle ear effusion
Not standard for diagnosis
Otoscopy and pneumatic otoscopy preferred
Typical uncomplicated AOM
Not indicated
Disposition
Outpatient versus admission
Disposition criteria
Outpatient management
Nontoxic appearance
No complication signs
Adequate oral intake
Reliable follow up
Admission or observation
Suspected mastoiditis
Postauricular swelling
Pinna displacement
Persistent fever despite antibiotics
Suspected intracranial complication
Neurologic signs
Meningeal signs
Inability to tolerate oral therapy
Persistent vomiting
Dehydration
Immunocompromised patient with severe infection
Follow up planning
Follow up targets
Symptom reassessment window
48 to 72 hours if observation strategy
48 to 72 hours if antibiotics with no improvement
Hearing and effusion follow up
Persistent effusion at 3 months consideration
Audiology referral for hearing concerns
Treatment
Analgesia and supportive care
Symptom control
Acetaminophen
Pediatrics 10 to 15 mg per kg per dose every 4 to 6 hours
Maximum 75 mg per kg per day
Maximum 4 g per day cap in larger adolescents
Adults 650 to 1000 mg every 6 to 8 hours
Maximum 3 to 4 g per day depending on risk factors
Ibuprofen
Pediatrics 10 mg per kg per dose every 6 to 8 hours
Maximum 40 mg per kg per day
Adults 400 mg every 6 to 8 hours
Maximum 2400 mg per day typical OTC guidance varies by jurisdiction
Topical anesthetic ear drops
Avoid if tympanic membrane perforation suspected
Short term pain reduction option in intact membrane
Antibiotic decision strategy
Antibiotic versus observation
Observation option
Age 6 to 23 months unilateral without severe signs
Close follow up within 48 to 72 hours
Rescue antibiotic plan if worsening or no improvement
Age 24 months or older without severe signs
Close follow up within 48 to 72 hours
Rescue antibiotic plan if worsening or no improvement
Immediate antibiotics
Age under 6 months
Severe signs definition
Moderate to severe otalgia
Otalgia for 48 hours or more
Temperature 39.0 C or higher
Otorrhea with AOM
Bilateral AOM age 6 to 23 months
Evidence and guideline strength
AAP guideline supports observation option in selected children
Class I recommendation
AAP guideline supports amoxicillin as first line when antibiotics chosen
Class I recommendation
First line antibiotics
First line therapy selection
Amoxicillin
Pediatrics 80 to 90 mg per kg per day divided twice daily
Duration 10 days for age under 2 years or severe signs
Duration 7 days for age 2 to 5 years nonsevere
Duration 5 to 7 days for age 6 years or older nonsevere
Adults 875 mg twice daily
Typical duration 5 to 7 days uncomplicated
Rationale
Coverage for Streptococcus pneumoniae
Narrower spectrum than alternatives
Escalation and alternative antibiotics
Broader coverage indications
Amoxicillin clavulanate
Indications
Amoxicillin in prior 30 days
Concurrent purulent conjunctivitis
History of recurrent AOM unresponsive to amoxicillin
Pediatrics 90 mg per kg per day amoxicillin component divided twice daily
Clavulanate 6.4 mg per kg per day in high ratio formulations
Diarrhea mitigation with food and high ratio products
Adults 875 mg amoxicillin with 125 mg clavulanate twice daily
Nonsevere penicillin allergy options
Cefdinir
Pediatrics 14 mg per kg per day once daily or divided twice daily
Adults 300 mg twice daily
Cefuroxime axetil
Pediatrics 30 mg per kg per day divided twice daily
Adults 500 mg twice daily
Severe immediate hypersensitivity to penicillin
Azithromycin
Pediatrics 10 mg per kg day 1 then 5 mg per kg days 2 to 5
Adults 500 mg day 1 then 250 mg days 2 to 5
Higher pneumococcal resistance risk
Clindamycin
Pediatrics 30 to 40 mg per kg per day divided three times daily
Adults 300 mg three times daily
Limited H influenzae and M catarrhalis coverage
Treatment failure pathway
Lack of improvement at 48 to 72 hours
Reassessment
Confirm AOM diagnosis
Evaluate for complications
Antibiotic change options
If initial amoxicillin then amoxicillin clavulanate
If oral failure or vomiting then ceftriaxone
Pediatrics 50 mg per kg IM or IV daily
1 to 3 days depending on response
Maximum 1 g per day common practice
Adults 1 to 2 g IV daily depending on severity
Tympanic membrane perforation and otorrhea
Otorrhea management
AOM with perforation
Systemic antibiotics per standard AOM pathway
Keep ear dry
Tympanostomy tube otorrhea
Topical fluoroquinolone ear drops preferred
Ofloxacin otic typical dosing 5 drops twice daily for 7 to 10 days
Ciprofloxacin dexamethasone otic typical dosing 4 drops twice daily for 7 days
Systemic antibiotics reserved for severe or systemic illness
Special Populations
Pregnancy
Pregnancy considerations
Diagnostic approach
Same clinical diagnosis by otoscopy
Lower threshold for evaluation of complications with systemic symptoms
Medication safety
Acetaminophen preferred analgesic
NSAID avoidance in third trimester
Amoxicillin compatible with pregnancy
Amoxicillin clavulanate compatible with pregnancy
Escalation triggers
Severe systemic illness
Concern for mastoiditis
Geriatric
Older adult considerations
Alternative diagnoses frequency
Malignancy and referred otalgia consideration with normal otoscopy
Temporal arteritis consideration with jaw claudication and headache
Complication risk
Higher risk with diabetes and immunosenescence
Medication risks
NSAID renal and GI risk
Drug interaction review with macrolides
Pediatrics
Pediatric specific considerations
Age based thresholds
Under 6 months generally antibiotics
6 to 23 months bilateral higher benefit from antibiotics
Weight based dosing accuracy
Current weight in kg
Maximum daily dose awareness
Recurrent AOM definition
3 episodes in 6 months
4 episodes in 12 months with 1 in past 6 months
ENT referral triggers
Recurrent AOM meeting criteria
Persistent effusion with hearing or speech concerns
Background
Epidemiology
Epidemiologic context
Pediatric predominance
Peak incidence between 6 and 24 months
Declining incidence with age
Seasonality
Higher rates in fall and winter
Microbiology distribution
Streptococcus pneumoniae
Nontypeable Haemophilus influenzae
Moraxella catarrhalis
Pathophysiology
Mechanism
Eustachian tube dysfunction
Viral URI leading to edema and obstruction
Negative middle ear pressure and effusion
Secondary bacterial infection
Effusion acting as growth medium
Inflammatory pressure causing pain and bulging membrane
Tympanic membrane rupture mechanism
Elevated middle ear pressure
Sudden pain relief with otorrhea possible
Therapeutic Considerations
Treatment rationale
Analgesia priority
Pain often greatest in first 24 hours
Antibiotics do not provide immediate pain relief
Observation strategy rationale
Many cases resolve spontaneously
Antibiotic adverse effects reduction
Resistance pressure reduction
Antibiotic selection rationale
High dose amoxicillin for pneumococcal coverage
Amoxicillin clavulanate for beta lactamase producers
Evidence framing
Antibiotics provide modest absolute benefit in pain at 2 to 3 days
Class IIa recommendation for selective use based on severity and age
Patient Discharge Instructions
copy discharge instructions
Home care and expectations
Pain control
Acetaminophen or ibuprofen as directed for discomfort
Best effect with scheduled dosing for first 24 hours if needed
Symptom timeline
Improvement expected within 48 to 72 hours
Hearing fullness can last weeks due to effusion
Antibiotics instructions if prescribed
Start today
Complete full course
Diarrhea and rash monitoring
Return to urgent care or ER now
Worsening despite 48 hours of treatment
New swelling or redness behind the ear
Ear pushed forward or outward
Severe headache
Neck stiffness
Confusion or unusual sleepiness
Facial weakness
Persistent vomiting
Trouble breathing
Follow up
Primary care follow up in 2 to 3 days if not improving
Hearing check if hearing not back to normal by 3 months
Recurrent infections discussion for possible ENT referral
References
Clinical guidelines and evidence
Key sources
American Academy of Pediatrics clinical practice guideline for acute otitis media
Diagnostic criteria emphasizing bulging tympanic membrane and middle ear effusion
Observation option criteria by age laterality and severity
High dose amoxicillin first line when antibiotics indicated
Infectious Diseases Society and pediatric infectious disease consensus statements on AOM microbiology and resistance
Beta lactamase coverage indications
Treatment failure pathways
Cochrane reviews on antibiotics for acute otitis media in children
Modest symptom benefit with antibiotics
Increased adverse effects with antibiotics
Source file
Formatting and structure constraints for database optimized checklists
Evidence labeling requirements including ACEP levels and Class recommendations
SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.