Onset seizures independently predict poor outcome after subarachnoid hemorrhage

Abstract

Objective: To determine whether onset seizures after subarachnoid hemorrhage (SAH) carry independent prognostic information and to investigate the risk factors for late seizures after SAH. Background: Modern management of SAH, including early operation, has substantially reduced mortality. No study has adequately assessed the importance of onset seizures in a contemporary SAH cohort. Methods: The authors analyzed the records and initial CT scans of 412 consecutive patients with aneurysmal or nonaneurysmal SAH admitted to the Royal Melbourne Hospital from 1990 to 1996. Each patient with an onset seizure (n = 32, 7.8% of cohort) was age and sex matched to two nonseizure patients of the same co..