Clinical and EEG predictors of treatment response in pediatric absence epilepsy - a single-center experience
Anna Lemska1, Marta Zawadzka2, Maria Mazurkiewicz-Bełdzińska2
1Department of Developmental Neurology, Medical University of Gdansk, Poland. aniaskorek@gumed.edu.pl.
Insights
Early diagnosis and treatment of absence epilepsy improve seizure control. Favorable prognosis in childhood absence epilepsy (CAE) links to early onset and typical EEG patterns, while juvenile absence epilepsy (JAE) may require complex management.
Area of Science:
- Neurology
- Epileptology
- Clinical Neuroscience
Background:
- Absence epilepsy presents diverse clinical forms and treatment responses, affecting children, adolescents, and adults.
- Childhood absence epilepsy (CAE) often has a good prognosis, but some cases show drug resistance, necessitating better predictive markers for management.
Purpose of the Study:
- To evaluate clinical and electroencephalographic (EEG) characteristics of absence epilepsy.
- To identify factors influencing treatment outcomes and long-term prognosis in absence epilepsy patients.
Main Methods:
- Prospective study of 57 pediatric patients with absence epilepsy.
- Analysis of clinical data (age of onset, seizure frequency, family history) and EEG findings.
- 12-month follow-up to assess seizure outcomes and treatment efficacy.
Main Results:
- Childhood absence epilepsy (CAE) was the most common subtype (73.7%).
- 85% of patients achieved seizure remission within six months.
- Favorable prognosis correlated with early onset, typical 3-4 Hz spike-wave EEG, and rapid response to first-line anti-epileptic drugs (AEDs).
- Juvenile absence epilepsy (JAE) and atypical absence syndromes showed higher treatment resistance.
Conclusions:
- Absence epilepsy outcomes depend on seizure type, age at onset, EEG, and initial treatment response.
- Early diagnosis and prompt, appropriate therapy are crucial for seizure control.
- Tailored approaches and long-term follow-up are needed for patients with challenging absence epilepsy syndromes.
Aim Of The Study:
Absence epilepsy, though primarily affecting children, can also emerge during adolescence or adulthood, showing a wide spectrum of clinical presentations and treatment responses. The aim of this study is to evaluate the clinical and electroencephalographic (EEG) characteristics of absence epilepsy and identify factors that influence treatment outcomes and long-term prognosis.
Clinical Rationale For The Study:
While childhood absence epilepsy (CAE) is often associated with favorable prognosis, a subset of patients experiences drug resistance and persistent seizures. Understanding the clinical and EEG predictors of treatment success or failure can support more effective, individualized therapeutic strategies and improve long-term management.
Material And Methods:
This prospective study included 57 pediatric patients diagnosed with absence epilepsy. Clinical data and EEG findings were analyzed focusing on age of onset, seizure frequency, EEG patterns, family history, and treatment response. Patients were followed over a 12-month period to assess seizure outcomes and treatment efficacy.
Results:
Childhood absence epilepsy was the most common subtype, identified in 73.7 % of cases. A total of 85% of patients achieved seizure remission within six months of initiating treatment. A favorable prognosis was significantly associated with early age of onset, presence of typical 3-4 Hz spike-and-wave discharges on EEG, and rapid response to first-line anti-epileptic drugs (AEDs). In contrast, patients diagnosed with juvenile absence epilepsy (JAE), myoclonic absence seizures, or absence seizures with eyelid myoclonia often required more complex treatment regimens and demonstrated a higher risk of persistent seizures.
Conclusions And Clinical Implications:
Absence epilepsy encompasses a range of clinical syndromes, and outcomes are influenced by seizure type, age at onset, EEG characteristics, and initial treatment response. Early diagnosis and prompt initiation of appropriate therapy are critical for achieving seizure control. However, some patients, particularly those with atypical absence syndromes, may continue to experience therapeutic challenges, highlighting the need for tailored treatment approaches and long-term follow-up.
More Related Videos
09:57Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization
Published on: September 20, 2024
10:02Event Related Potentials ERPs and other EEG Based Methods for Extracting Biomarkers of Brain Dysfunction: Examples from Pediatric Attention Deficit/Hyperactivity Disorder ADHD
Published on: March 12, 2020
