Clinical Report: Factors Associated with Postoperative Seizures Following Endovascular Aneurysm Exclusion
Overview
This systematic review and meta-analysis identifies key factors associated with postoperative seizures following endovascular aneurysm exclusion. Radiological indicators, particularly hydrocephalus and severe blood distribution, were linked to seizure occurrence.
Background
Endovascular aneurysm exclusion has revolutionized the treatment of intracranial aneurysms, yet postoperative seizures remain a significant complication. Understanding the factors that contribute to seizure risk is crucial.
Data Highlights
Factor
Odds Ratio (OR)
95% Confidence Interval (CI)
Hydrocephalus
3.91
1.22 to 12.53
Fisher grade 3 + 4 blood distribution
3.29
1.55 to 6.97
Hunt-Hess grade 1 to 3
3.15
1.73 to 5.72
WFNS grade 4 to 5
1.86
1.14 to 3.02
Key Findings
Hydrocephalus is significantly associated with postoperative seizures (OR 3.91).
Fisher grade 3 + 4 blood distribution correlates with increased seizure risk (OR 3.29).
Hunt-Hess grade 1 to 3 shows a significant association with seizure occurrence (OR 3.15).
WFNS grade 4 to 5 is associated with a moderate risk of seizures (OR 1.86).
Age, sex, middle cerebral artery involvement, and cerebral edema were not significant predictors of seizures.
Greater radiological severity of hemorrhage increases the likelihood of postoperative seizures.
Clinical Implications
Clinicians should consider radiological indicators, particularly hydrocephalus and blood distribution severity, when assessing seizure risk in patients undergoing endovascular aneurysm exclusion.
Conclusion
The study highlights factors associated with postoperative seizures. Further research is warranted to standardize seizure definitions and improve monitoring practices.
This American Epilepsy Society (AES) practice guideline provides updated, evidence-based recommendations for the management of epilepsy in infants and children aged 1 month to <36 months.
