What are the differential diagnoses for vertigo and falls in a pediatric patient?

Differential Diagnoses for Vertigo and Falls in Pediatric Patients

Vestibular migraine and benign paroxysmal vertigo of childhood are the two most common causes of vertigo in children, together accounting for approximately 37-40% of cases, followed by idiopathic causes, labyrinthitis/vestibular neuronitis, and head trauma. 1, 2

Most Common Diagnoses (in descending order of frequency)

Primary Vestibular Causes

• Vestibular migraine (23.8-35%) - The single most frequent diagnosis in pediatric vertigo, often presenting with episodic vertigo, headache (though not always concurrent), photophobia, and phonophobia 1, 3, 4
• Benign paroxysmal vertigo of childhood (13.7-18.7%) - Brief episodes of vertigo lasting seconds to minutes, typically in younger children (ages 2-6 years), with normal neuroimaging and vestibular testing supporting the diagnosis 1, 2, 5
• Benign paroxysmal positional vertigo (BPPV) (12-21.6%) - Diagnosed by positive Dix-Hallpike testing; more common than previously recognized in pediatric populations 3, 4
• Labyrinthitis/vestibular neuronitis (8.5-9.8%) - Acute onset persistent vertigo with normal neurologic examination 1, 2

Central and Neurologic Causes

• Head trauma (14%) - Third most common overall cause; requires consideration of vertebral artery dissection and cerebellar stroke, particularly with neck involvement 6, 2
• Epilepsy (6%) - Can present with vertiginous symptoms as part of seizure activity 4
• CNS tumors - Less common but critical not to miss; posterior fossa tumors can present with ataxia and vertigo 6, 1
• Multiple sclerosis - Rare in children but accounts for approximately 4% of acute vestibular syndrome cases, nearly always with additional neurologic findings 7
• Cerebellar stroke - Can occur from vertebral artery dissection, particularly in trauma settings 6

Other Significant Causes

• Otitis media - Common cause in younger children, though excluded if middle ear effusion present 4, 5
• Primary dysautonomia (15.7%) - Increasingly recognized as contributing to dizziness and imbalance 3
• Anxiety disorder (13.5%) - Psychogenic vertigo accounts for approximately 10% of cases 3, 4
• Persistent postural perceptual dizziness (PPPD) (11.2%) - Often coexists with other diagnoses 3
• Metabolic disorders (6%) - Including intermittent maple syrup urine disease, pyruvate dehydrogenase deficiency, and Hartnup disease, presenting during stress or illness 6, 4
• Meniere disease (2%) - Rare in pediatric populations 4
• Perilymphatic fistula (2%) - Uncommon but important to consider with trauma history 4

Critical Clinical Considerations

Multiple Concurrent Diagnoses Are Common

44.4% of pediatric patients with vertigo receive multiple contributing diagnoses, most frequently vestibular migraine combined with BPPV or PPPD 3. This multifactorial nature requires comprehensive evaluation rather than stopping at the first identified cause.

Red Flags Requiring Urgent Neuroimaging

• Acute persistent vertigo with abnormal neurologic examination findings 7
• Recent head or neck trauma with concern for vertebral artery dissection - requires MRA head and neck to assess full extent of vascular injury 6
• Progressive or worsening symptoms 6
• Severe sensorineural hearing loss 4
• Central vestibular abnormalities on electronystagmography 4

When Imaging Is NOT Indicated

• BPPV with typical nystagmus on Dix-Hallpike testing does not require imaging 7
• Benign paroxysmal vertigo and basilar migraine with normal neurologic examination - normal neuroimaging supports these diagnoses 6
• Isolated acute vestibular syndrome with HINTS examination consistent with peripheral vertigo performed by trained practitioners 7

Recurrent/Episodic Ataxia Specific Considerations

For children with recurrent episodes that completely resolve between attacks, consider 6:

• Basilar migraines (diagnosed clinically with normal neuroimaging)
• Benign paroxysmal vertigo (normal vestibular testing and neuroimaging)
• Autosomal dominant episodic ataxia (may show vermian atrophy on MRI in type 2)
• Metabolic disorders (MRI helpful for identifying neurometabolic disease patterns)

Common Pitfalls to Avoid

• Do not assume normal neurologic examination excludes central causes - 75-80% of patients with acute vestibular syndrome from posterior circulation infarct may lack focal neurologic deficits 7
• Do not order CT head for isolated vertigo with normal examination - detection rate of contributory CNS pathology is <1% in emergency department patients with normal neurologic examination 7
• Do not overlook the 11.7% of cases that remain idiopathic despite thorough evaluation 1
• Recognize that causes differ substantially from adult populations - migraine variants are proportionally much more common in children 2, 5