Paroxysmal Nonepileptic Events in a Pediatric Epilepsy Clinic

Area of Science:

• Pediatric Neurology
• Clinical Neurophysiology

Background:

• Paroxysmal events in children are often misdiagnosed as epilepsy.
• Accurate diagnosis is crucial for appropriate management and to avoid unnecessary treatments.

Purpose of the Study:

• To determine the frequency, age, and gender distribution of paroxysmal nonepileptic events (PNEs) in children referred for epilepsy.
• To evaluate the therapeutic implications of accurate diagnosis and the co-occurrence of true epilepsy.

Main Methods:

• Prospective evaluation of new pediatric patients (<18 years) presenting with paroxysmal events at a pediatric epilepsy clinic.
• Assessment included event descriptions, recorded videos, and further investigations if needed.
• Statistical analysis used Chi-square/Fisher's exact test and Kruskal-Wallis test.

Main Results:

• 19% of 200 enrolled children had PNEs; 80% had epileptic events.
• Physiological PNEs were common in younger children (<5 years), psychogenic in older children.
• Accurate diagnosis led to a significant change in treatment, with only 2.6% requiring anti-epileptic drugs for coexisting epilepsy.

Conclusions:

• Epilepsy mimics, such as PNEs, are frequent in pediatric epilepsy clinics.
• Misdiagnosis of PNEs can lead to undue stress and inappropriate treatment with anti-epileptic drugs.
• Correct diagnosis facilitates optimized management, including drug withdrawal or initiation of specific treatments.