Prognosis of post-stroke status epilepticus: Effects of time difference between the two events.
Seizure(2018)
Abstract
PURPOSE:This study aimed to investigate the prognosis of patients with status epilepticus (SE) following stroke, focusing on the timing of SE after the event and other unexplored variables.
METHODS:All consecutive patients experiencing post-stroke SE (PSSE) in our center were included (2011-2016). We analyzed SE- and stroke-related factors in relation to the patients' outcome.
RESULTS:95 patients with PSSE (54 ischemic and 41 hemorrhagic stroke) were analyzed; 40 were women (42.1%) and mean age was 72.7 ± 13.56 years. 51(53.7%) showed prominent motor symptoms, 49(51.6%) needed >2 antiepileptic drugs, and 27(28.4%) required anesthetics. Median duration of SE was 12 h (1-240). Median time from stroke to SE was 15 days (0-532). At discharge, logistic regression identified SE within 72 h after stroke (p = 0.004), baseline mSTESS (p = 0.009), and lesion volume (p = 0.001) as independent factors predicting mortality. Female sex (p = 0.019), SE duration >12 h (p = 0.005), temporal lobe involvement (p = 0.029), and stroke-to-SE time <90 days (p < 0.0001) were independent predictors of functional decline. At long-term follow-up, SE occurring within 72 h after stroke (p = 0.0001), SE duration (p = 0.004), and baseline mSTESS score (p = 0.012) remained as predictive of mortality.
CONCLUSIONS:The timing of SE after stroke is associated with different consequences: mortality was higher when SE occurred within the first 72 h after stroke and this risk persisted at follow-up, whereas risk of functional decline was higher when SE occurred during the first 3 months. Other factors such as the mSTESS score and SE duration were associated with outcome at both discharge and long-term follow-up.
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