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[Therapeutic failure, treatment and non-treatment of childhood epilepsy]
C Garaizar1, J Pérez-García, J Gil-Antón
1Departamento de Pediatría, Hospital de Cruces, Barakaldo, Vizcaya, España.
Insights
In childhood epilepsy, specific syndromes guide treatment. Valproic acid (VPA) and carbamazepine (CBZ) show low failure rates, especially in idiopathic partial epilepsies.
Area of Science:
- Neurology
- Pediatrics
- Pharmacology
Background:
- Epileptic syndrome classification is crucial for prognosis and treatment guidance in childhood epilepsy.
- Understanding treatment patterns in everyday clinical practice is essential for optimizing care.
Purpose of the Study:
- To analyze medical therapy patterns based on epileptic syndromes in a hospital-based outpatient neuropediatric clinic.
- To evaluate treatment outcomes and identify effective antiepileptic drugs for different childhood epilepsy types.
Main Methods:
- A database survey of 465 epileptic patients treated in 1966 was conducted.
- An algorithm was used to define therapeutic failure, treatment success, and spontaneous evolution based on syndrome and drug.
- Data analysis focused on monotherapy, polytherapy, and drug efficacy across various epileptic syndromes.
Main Results:
- Monotherapy was used in 38% of patients, with 21% achieving therapeutic success and 22% showing spontaneous evolution.
- Valproic acid (VPA) and carbamazepine (CBZ) demonstrated the lowest failure rates and highest monotherapy percentages.
- Idiopathic partial epilepsies (85% monotherapy) and idiopathic generalized epilepsies (83% monotherapy) showed favorable outcomes, particularly with VPA.
Conclusions:
- Database screening and algorithmic analysis provide insights into treatment quality and effectiveness.
- In idiopathic partial epilepsy, VPA and CBZ are highly effective with low failure rates; treatment may be avoidable in some cases.
- VPA is the preferred drug for idiopathic generalized epilepsies with a very low failure rate; other syndromes have a ~50% therapeutic failure rate, with VPA offering a slight advantage.
Introduction:
The classification of epileptic syndromes defines the prognosis and offers some orientation about treatment in childhood epilepsy.
Objective:
To study the medical therapy according to epileptic syndromes in the everyday practice of a hospital based outpatient neuropediatric clinic.
Methods:
Survey of the database using an algorithm to define therapeutic failure, treatment and spontaneous evolution, according to syndrome and drug, of all epileptic patients attended at the clinic during 1966.
Results:
465 patients with: monotherapy 38%, politherapy 20%, therapeutic success (follow-up after drug discontinuation) 21%, spontaneous evolution 22% (54% of partial idiopathic epilepsies). Most used antiepileptic drugs (VPA > CBZ > VGB > CLB > PB > PHT > LTG > ESM > PRM > GBT) are those with lowest failure rate and highest percentage of patients on monotherapy. Percentages of monotherapy in treated patients and of previous failure out of total number of patients are: idiopathic partial epilepsies: 85% and 10%; remote symptomatic partial: 58% and 43%; cryptogenic partial: 53% and 50%; idiopathic generalized: 83% and 25%; symptomatic-cryptogenic generalized: 34% and 63%; undetermined: 45% and 43%.
Conclusions:
Screening of the database serves as a quality control but the use of an algorithm offers only an approximation to reality. In idiopathic partial epilepsy treatment can be avoided in half of the patients and failure is lowest for VPA and CBZ. In idiopathic generalized epilepsies VPA predominance is almost absolute with a very low failure rate. In all other epileptic syndromes the therapeutic failure rate is about 50% regardless of drug, except for VPA which shows a moderately better outcome.
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