Journal
JOURNAL OF NEUROLOGY
Volume 269, Issue 5, Pages 2707-2714Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00415-021-10871-5
Keywords
Alcohol withdrawal; Antiseizure medication; Epilepsy; Stroke; Unprovoked seizure
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Funding
- Projekt DEAL
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One quarter of patients presenting to the ER after an epileptic fit had an acute symptomatic genesis, with alcohol withdrawal and hemorrhagic stroke being the most common causes. Male sex, no prior diagnosis of epilepsy, and bilateral/generalized tonic-clonic seizure semiology were independently associated predictors of acute symptomatic seizures. Patients with acute symptomatic seizures were more likely to receive acute antiseizure medication in the ER.
Background When treating patients with epileptic seizures in the emergency room (ER), it is of paramount importance to rapidly assess whether the seizure was acute symptomatic or unprovoked as the former points to a potentially life-threatening underlying condition. In this study, we seek to identify predictors and analyze characteristics of acute symptomatic seizures (ASS). Methods Data from patients presenting with seizures to highly frequented ERs of two sites of a university hospital were analyzed retrospectively. Seizures were classified as acute symptomatic or unprovoked according to definitions of the International League Against Epilepsy. Univariate and multivariate analysis were conducted to identify predictors; furthermore, characteristics of ASS were assessed. Results Finally, 695 patients were included, 24.5% presented with ASS. Variables independently associated with ASS comprised male sex (OR 3.173, 95% CI 1.972-5.104), no prior diagnosis of epilepsy (OR 11.235, 95% CI 7.195-17.537), and bilateral/generalized tonic-clonic seizure semiology (OR 2.982, 95% CI 1.172-7.588). Alcohol withdrawal was the most common cause of ASS (74.1%), with hemorrhagic stroke being the second most prevalent etiology. Neuroimaging was performed more often in patients with the final diagnosis of ASS than in those with unprovoked seizures (82.9% vs. 67.2%, p < 0.001). Patients with ASS were more likely to receive acute antiseizure medication in the ER (55.9% vs. 30.3%, p < 0.001). Conclusions In one quarter of patients presenting to the ER after an epileptic fit, the seizure had an acute symptomatic genesis. The independently associated variables may help to early identify ASS and initiate management of the underlying condition.
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