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Risk of epilepsy after aneurysm operations
J Bidziński1, A Marchel, A Sherif
1Department of Neurosurgery, Medical Academy, Warsaw, Poland.
Acta Neurochirurgica
|January 1, 1992
Summary
This study found a 7% epilepsy risk in patients post-aneurysm surgery without prophylactic anticonvulsants. Most epilepsy cases occurred in patients pre-operatively classified in the 3rd WFNS group.
Area of Science:
- Neurosurgery
- Neurology
- Epileptology
Background:
- Aneurysm surgery carries a risk of post-operative neurological complications.
- The use of prophylactic anticonvulsants after aneurysm surgery is common but debated.
- Limited data exists on the actual incidence of epilepsy post-aneurysm operations without prophylactic treatment.
Purpose of the Study:
- To prospectively evaluate the risk of developing epilepsy after aneurysm surgery.
- To assess the incidence of seizures in patients not receiving prophylactic anticonvulsant therapy.
- To identify potential risk factors for post-operative epilepsy.
Main Methods:
- Prospective study design.
- Inclusion of 121 patients evaluated 12 months post-aneurysm operation.
- Epilepsy defined as two or more seizure attacks; single seizures also recorded.
- Patients did not receive prophylactic anticonvulsant treatment.
Main Results:
- Epilepsy occurred in 8 out of 121 patients (7%) within 12 months post-operation.
- Three patients experienced single seizures, which did not recur within two years without treatment.
- Patients who developed late epilepsy were predominantly in the 3rd clinical group (WFNS scale) pre-operatively.
Conclusions:
- The risk of epilepsy within 12 months post-aneurysm surgery without prophylactic anticonvulsants is approximately 7%.
- Prophylactic anticonvulsant use after aneurysm surgery may be questionable, particularly for patients not in higher WFNS groups.
- Further research is warranted to refine prophylactic strategies based on individual patient risk factors.