What is the incidence of seizures associated with aSAH?
The incidence, future implications, and management of seizures associated with aSAH are controversial. At present, no randomized, controlled trials are available to guide decisions on prophylaxis or treatment of seizures. A relatively high percentage of aSAH patients (as many as 26%) experience seizure-like episodes, but it remains unclear whether these episodes are verifiably epileptic in origin. More recent retrospective reviews suggest a lower seizure incidence of 6% to 18%, and 2 of these studies found that the majority of such patients reported onset of seizure occurring before medical evaluation.