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Zorluk: OrtaPediatric Neurologic Disorders

An 8-month-old female infant is brought to the pediatric clinic by her parents due to a two-week history of abnormal movements. The parents describe sudden, symmetrical, forward-bending jerks of the infant's neck, trunk, and arms. These episodes typically occur in clusters just after the infant wakes up from sleep. The pregnancy and delivery were uncomplicated. The infant had been meeting all early developmental milestones, but the parents note she recently stopped rolling over and babbling. Vital signs are within normal limits. Neurologic examination is notable for generalized hypotonia. Skin examination under Wood lamp illumination reveals three 1.5-cm, elliptical, hypopigmented macules on the infant's trunk. Which of the following are the most appropriate next steps in the evaluation and management of this patient? (Select exactly two answers)

  1. ElectroencephalographyCevap
  2. Initiation of vigabatrinCevap
  3. C
    Initiation of empiric intravenous ceftriaxone
  4. D
    Prescription of topical clotrimazole
  5. E
    Reassurance and routine developmental follow-up

Cevap

The most appropriate next steps are performing electroencephalography (EEG) and initiating vigabatrin therapy.
The correct sequence of management for this patient addresses both the diagnostic confirmation and the targeted treatment of her condition. The clinical presentation of clustered flexor spasms, developmental regression, and hypopigmented ash-leaf spots is highly characteristic of infantile spasms secondary to tuberous sclerosis complex (TSC). Electroencephalography is essential to confirm the diagnosis by identifying the pathognomonic background pattern of hypsarrhythmia. Concurrently, initiation of vigabatrin is correct because it is uniquely efficacious and serves as the definitive first-line pharmacotherapy for infantile spasms in the setting of TSC.

Adım Adım Çözüm

1
Analyze the patient's clinical presentation and physical exam findings.
The infant has clustered myoclonic jerks upon awakening, developmental regression, and hypopigmented elliptical macules (ash-leaf spots).
Recognizing the classic triad of infantile spasms, milestone regression, and ash-leaf spots points directly to the diagnosis of Tuberous Sclerosis Complex (TSC).
2
Determine the necessary diagnostic test.
Electroencephalography (EEG) must be selected.
EEG is the gold standard diagnostic tool required to identify hypsarrhythmia, the chaotic, high-voltage interictal pattern characteristic of infantile spasms.
3
Select the optimal pharmacologic management.
Vigabatrin therapy should be initiated.
While ACTH or oral corticosteroids are standard for most infantile spasms, vigabatrin is specifically the first-line medication for infantile spasms associated with Tuberous Sclerosis Complex.

Anahtar Kavram

Tuberous Sclerosis Complex (TSC) often presents with infantile spasms (West syndrome), which requires diagnosis via electroencephalography (EEG) and specific first-line treatment with vigabatrin.
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Pediatric Neurologic Disorders

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