Benign Paroxysmal Vertigo of Childhood (BPPV)

🌀Definition

He Benign Paroxysmal Vertigo of Childhood (BPPV) It is an episodic disorder that occurs in young children, usually between 1 and 4 years old. It is characterized by recurrent, brief and sudden episodes of vertigo or imbalance that resolve spontaneously.

It is considered a precursor or a variant of the migraine. Affected children usually have a family history of migraine and may develop typical migraines (with or without aura) in adolescence or adulthood.

👶Clinical Findings

  • Sudden Start: The previously healthy child stops, becomes frightened, and clings to an object or his parents.
  • Short Duration: Episodes last from seconds to a few minutes.
  • Accompanying Symptoms: They may present paleness, sweating, nystagmus or vomiting.
  • Preserved Consciousness: The child remains conscious throughout the episode.
  • Without Prodromes or Postdrome: Recovery is complete and immediate after the episode.
  • Normal Neurological Examination: Between seizures, the physical and neurological examination is completely normal.
  • Variable Frequency: Episodes may occur in bursts over several days and then disappear for months.

🧩Differential Diagnosis

It is crucial to rule out other causes of vertigo or ataxia. VPBI is a diagnosis of exclusion.

Otological Causes

  • Labyrinthitis / Vestibular neuronitis
  • Benign paroxysmal positional vertigo (BPPV)
  • Menière's disease (rare in children)

Neurological Causes

  • Epileptic seizures (vertigo as aura)
  • Posterior fossa tumors
  • multiple sclerosis
  • Hereditary episodic ataxias

Other Causes

  • Syncope/Presyncope
  • Hypoglycemia
  • Poisoning
  • Conversion/somatization disorders

🚑Management in Emergencies

Most episodes are so brief that they do not require intervention. Driving focuses on peace of mind and safety.

  1. Reassure parents and child: Explain the benign and self-limiting nature of the condition.
  2. Ensure security: Place the child in a safe place (floor, bed) to avoid falls during the episode.
  3. Observation: Monitor the duration and characteristics of the episode. Acute pharmacological treatment is usually not necessary.
  4. Post-crisis exploration: Perform a complete neurological examination once the episode has subsided to confirm interictal normality.
  5. Look for warning signs: Intense headache, persistent alteration of consciousness, neurological focality, fever or meningeal signs. Its presence requires ruling out serious pathology.

🔬Diagnostic Tests

If the clinical history and examination are typical of VPBI, additional tests are usually not necessary. They are reserved for atypical cases or if there are diagnostic doubts.

  • ▶

    Audiometry and vestibular tests:

    They tend to be normal. They can help rule out inner ear pathology.

  • ▶

    Electroencephalogram (EEG):

    Indicated if epileptic seizures are suspected. It is normal in the VPBI.

  • ▶

    Neuroimaging (brain MRI):

    ESSENTIAL if there are warning signs, abnormal neurological examination or an atypical presentation to rule out structural lesions, especially in the posterior fossa.

💊Pharmacological Management

Prophylactic treatment is rarely necessary due to the benign nature and tendency to spontaneous resolution. It is considered only if the episodes are very frequent and disabling.

Drug Pediatric Dosage Common Presentations
Cyproheptadine 0.2-0.4 mg/kg/day, divided into 2-3 doses Oral solution, tablets
Propranolol 0.5-2 mg/kg/day, divided into 2-3 doses Oral solution, tablets
Topiramate Start 1 mg/kg/day, titrate slowly to 3-5 mg/kg/day Capsules, tablets

*Note: The use of these drugs for BPBI is off-label. The decision must be individualized and supervised by a neuropediatrician.

🧘Non-Pharmacological Management

The basis of management is education and family tranquility.

  • ✅

    Family Education

    Explain the relationship with migraine and its excellent long-term prognosis.

  • ✅

    Identify Triggers

    Although less common than in migraine, possible triggers such as fatigue, stress or sudden changes in position can be looked for.

  • ✅

    Sleep Hygiene

    Ensuring adequate and regular rest can decrease the frequency of episodes.

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    Symptom Diary

    Encouraging parents to keep a record of episodes can help track frequency and identify patterns.