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Differential diagnosis of staring spells in children: a video-EEG study
L Carmant1, U Kramer, G L Holmes
1Department of Neurology, Hôpital Ste-Justine, Montréal, Québec, Canada.
Insights
Differentiating epileptic from nonepileptic staring in children is crucial. A detailed clinical history is often sufficient, with video-electroencephalography (video-EEG) aiding in complex or refractory cases.
Area of Science:
- Neurology
- Pediatrics
- Clinical Neurophysiology
Background:
- Staring episodes in children are common and can be challenging to distinguish between epileptic and nonepileptic origins.
- Accurate differentiation is essential for appropriate diagnosis and management.
Purpose of the Study:
- To evaluate the utility of clinical history and video-electroencephalography (video-EEG) in differentiating epileptic from nonepileptic staring spells in a pediatric and young adult population.
- To identify clinical features suggestive of nonepileptic staring.
Main Methods:
- Retrospective review of clinical data and video-EEG findings in 143 patients (5 months to 43 years) presenting with staring episodes.
- Categorization of staring episodes into epileptic (partial seizures, atypical absence) and nonepileptic (behavioral, psychogenic seizures, migraine equivalent) origins.
Main Results:
- Epileptic staring was confirmed in 79 patients (46 partial seizures, 33 atypical absence).
- Nonepileptic staring was identified in 35 patients (behavioral, 8 psychogenic seizures, 1 migraine equivalent).
- Clinical history was highly effective in differentiating between epileptic and nonepileptic staring in most cases.
Conclusions:
- A thorough clinical history is the primary tool for distinguishing epileptic from nonepileptic staring in the majority of patients.
- Video-EEG monitoring is valuable for refractory cases or when nonepileptic events need to be definitively excluded.
Abstract:
Staring is frequently a nonepileptic manifestation in children. To differentiate epileptic versus nonepileptic staring, we reviewed clinical and video-EEG findings in 143 patients, aged 5 months to 43 years, monitored for staring episodes. In 79 patients staring was of epileptic origin; 46 had partial seizures and 33 atypical absence. Thirty-five had behavioral staring, 8 psychogenic seizures, 1 a migraine equivalent, and in 20 no staring spells were recorded. In all patients with epileptic staring, epilepsy was suspected clinically. Only 22 of the admissions for behavioral staring and 3 for pseudoseizures were to exclude a possible nonepileptic phenomenon. Review of their clinical histories revealed that certain findings strongly support a nonepileptic origin. In conclusion, a careful clinical history will differentiate between epileptic and nonepileptic staring episodes in most patients. Video-monitoring is helpful to adjust treatment or to exclude nonepileptic events in patients with refractory staring spells.