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Phenobarbital prophylaxis of post traumatic epilepsy
Insights
Phenobarbital effectively prevents post-traumatic epilepsy (PTE) in head injury patients. Lower doses of phenobarbital (PB) showed a favorable effect with reduced side effects, indicating efficient PTE prophylaxis.
Area of Science:
- Neurology
- Pharmacology
Background:
- Post-traumatic epilepsy (PTE) is a significant concern following non-missile head injuries.
- Prophylactic treatment aims to prevent seizure development after traumatic brain injury.
Purpose of the Study:
- To evaluate the efficacy of phenobarbital (PB) in preventing PTE in patients with non-missile head injuries.
- To assess the impact of different PB dosages on PTE incidence and side effects.
Main Methods:
- A two-year randomized study involving 90 patients with head injuries.
- Administration of phenobarbital (PB) at doses of 0.5-1.5 mg/kg/day or 1.6-2.5 mg/kg/day.
- Monitoring included neurologic examinations, EEG, and plasma PB levels.
Main Results:
- A low incidence of PTE was observed, suggesting an efficient prophylactic effect of PB.
- Two patients on higher PB doses (>1.5 mg/kg/day) experienced seizures.
- One patient had a seizure after prophylaxis cessation; low doses and monitoring reduced side effects.
Conclusions:
- Phenobarbital (PB) demonstrates an efficient prophylactic effect against post-traumatic epilepsy (PTE).
- Lower dosages of PB appear favorable, associated with reduced side effects and effective PTE prevention.
Abstract:
Phenobarbital (PB) was tested for its efficacy in averting post-traumatic epilepsy (PTE) in patients with non-missile head injuries. The protocol envisaged the administration of PB throughout a period of two years in randomly assigned doses ranging from 0.5 to 1.5 and from 1.6 to 2.5 mg/kg/day. The study included neurologic examination, EEG and plasma PB levels. Ninety patients, 83 of whom with serious head injury followed the prescribed treatment for the entire period. Two adult patients manifested seizures 5 and 10 months after the trauma. They were being treated with doses over 1.5 mg/kg/day. Another patient had a seizure six months after the end of the prophylaxis. Low doses of PB and monitoring permitted a reduction of side effects. The low incidence of PTE indicates that PB has an efficient prophylactic effect. The results also show that a low dosage has a favourable effect.