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Effective short-term diazepam prophylaxis in febrile convulsions
Insights
Short-term diazepam prophylaxis significantly reduced febrile seizure recurrence in children. This treatment effectively controlled seizures without increasing the risk of developing epilepsy.
Area of Science:
- Pediatrics
- Neurology
- Clinical Pharmacology
Background:
- Febrile seizures are common in young children.
- Recurrent febrile seizures can be a concern for parents and clinicians.
- Effective prophylactic strategies are sought to manage febrile convulsions.
Purpose of the Study:
- To evaluate the efficacy of short-term diazepam prophylaxis in preventing recurrent febrile convulsions.
- To assess the impact of prophylaxis on the development of epilepsy following febrile seizures.
Main Methods:
- A prospective, controlled study involving 289 children with their first febrile seizure.
- Randomization into two groups: one receiving short-term rectal diazepam prophylaxis and a control group.
- Prophylaxis involved rectal diazepam administration when temperature exceeded 38.5°C for 18 months.
Main Results:
- Short-term diazepam prophylaxis significantly reduced the 18-month recurrence rate of febrile seizures from 39% to 12% (P < 0.001).
- The total number of recurrences decreased from 77 to 23 (P < 0.001), and long-lasting recurrences reduced from 5.0% to 0.7% (P < 0.05).
- The risk of developing epilepsy within 2 years was similar in both groups (3%), but higher after complex febrile seizures (20%) or with EEG abnormalities (50%).
Conclusions:
- Short-term rectal diazepam prophylaxis is effective in reducing the recurrence of febrile seizures.
- This prophylactic approach does not appear to increase the risk of developing epilepsy.
- Risk stratification for epilepsy is crucial, particularly for children with complex febrile seizures or abnormal EEG findings.
Abstract:
The efficacy of short-term diazepam prophylaxis in febrile convulsions was evaluated in a prospective, controlled study. A total of 289 consecutive children admitted with their first febrile seizure were randomized into two groups. One group received short-term prophylaxis for 18 months with rectally administered diazepam in solution whenever the temperature was greater than or equal to 38.5 degrees C. The control group received no prophylaxis, but diazepam rectally in the event of new seizures. The short-term prophylaxis, a mean of five doses of diazepam per child per year, afforded effective seizure control; the 18-month recurrence rate was reduced from 39% to 12% (P less than 0.001), the total number of recurrences from 77 to 23 (P less than 0.001), the long-lasting recurrences from 5.0% to 0.7% (P less than 0.05). The risk of subsequent epilepsy within the first 2 years was the same, regardless of receiving prophylaxis (3%) or not (3%); it was low after simple febrile convulsions (no cases of epilepsy in 230 children) but considerable after complex febrile seizures (20%) or seizures associated with severe interictal EEG abnormalities (50%).