[Non-paroxysmal disorder in infant]
1Servicio Neuropediatría, Hospital Universitari Sant Joan de Déu, Barcelona, España.
Insights
Non-epileptic paroxysmal disorders (PNED) mimic seizures but stem from various brain dysfunctions. Accurate diagnosis is crucial, especially in children, as most PNED cases have a favorable outcome even without specific treatment.
Area of Science:
- Neurology
- Pediatric Neurology
- Clinical Neuroscience
Background:
- Non-epileptic paroxysmal disorders (PNED) are clinical events that resemble epileptic seizures but arise from non-epileptic brain dysfunction.
- PNEDs are more common than epilepsy, with an incidence ratio of 10:1.
- These disorders are particularly prevalent in children due to the developing nervous system, presenting diverse manifestations that can be mistaken for seizures.
Purpose of the Study:
- To highlight the diagnostic challenges of PNEDs, particularly in pediatric populations.
- To emphasize the importance of differentiating PNEDs from epileptic seizures for appropriate management.
- To discuss the diagnostic process and outcomes for PNEDs.
Main Methods:
- Review of clinical presentations of paroxysmal disorders.
- Emphasis on differential diagnosis between epileptic seizures and PNEDs.
- Discussion of the role of neurological examination and complementary investigations.
Main Results:
- The differential diagnosis for paroxysmal events is broad, especially in infants and young children.
- Neurological examinations and investigations are often normal or negative in PNED cases.
- A genetic basis has been identified in some PNED instances.
Conclusions:
- Establishing a correct diagnosis between seizures and PNEDs is the critical first step.
- While diagnostic tools may be unrevealing, a thorough clinical evaluation is essential.
- Many PNEDs have a favorable prognosis, and treatment options, though limited, exist, with many cases resolving favorably even if untreated.
Abstract:
Non-epileptic paroxysmal disorders (PNED) are defined as events that mimic epileptic seizures. Its onset is usually sudden and short-lived, caused by brain dysfunction of various origins, but not due to excessive neuronal firing. Its incidence is higher than the epilepsy (10:1). They can occur at any age but are most common in children, especially in the first year of life. The immature nervous system in childhood causes in this period, paroxysmal manifestations that are very diverse and different from other ages. Normal and common paroxysmal disorders in children can mimic epileptic seizures. The first step is to establish a correct diagnosis, if the clinical paroxysmal episode is a seizure or PNED. Differential diagnosis is very broad, especially in the first ages. It's necessary a complete neurological examination in case of doubt and the study should be extended with complementary exams, investigations that in most cases will be normal/negative. In some of them, a genetic basis has been shown. Treatment options are limited and most PNED untreated have a favorable outcome.
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