Table 3

The 6-month, 1-year and 5-year cumulative risks (CRs) of de novo epilepsy after endovascular treatment of an intracranial aneurysm

Endovascular treatmentTotal no. of patientsPatients with epilepsyCR* 6 months, %
(95% CI)
CR* 1 year, %
(95% CI)
CR* 5 years, %
(95% CI)
Aneurysm, ruptured885622.9 (2.0 to 4.3)4.1 (3.0 to 5.6)6.7 (5.2 to 8.6)
Aneurysm, non-ruptured599353.7 (2.4 to 5.5)3.8 (2.6 to 5.7)5.6 (4.0 to 8.0)
  • *Cumulative risks are the summation of patients alive with epilepsy and deceased with epilepsy.