Epidemiology of status epilepticus in a non‐urban area in Switzerland

Objective

The aim of this study is to provide a precise population‐based data on incidence, types, and causes of SE according to the 2015 ILAE definition and classification using a prospectively cohort in an adult population of a non‐urban area.

Materials & Methods

Prospective observational SE cohort in a single large community hospital. The center is the only one in the region (French‐speaking Valais canton), with all available resources to treat SE (including neurologist available 24/7, EEG monitoring and ICU). Every adult patient with SE is included (except post‐anoxic SE). All variables are collected prospectively using the 2015 ILAE status epilepticus classification.

Results

We identified 103 patients with SE in the study period between 1st of May 2015 and 30th of June 2019 for a population of 260,855 people. The incidence is 8.6 per 100,000 adults per year with an overall case‐fatality rate of 7.8%. SE was generalized convulsive in 52% of cases and nonconvulsive SE in coma in 34%.

Conclusions

Using a prospective reliable data collection with strict inclusion criteria, we found an incidence of 8.6 per 100,000 persons per year, in line with previous report using similar methods. The most severe forms—generalized convulsive and nonconvulsive SE in coma—represent the majority of cases. These data might be important for resources allocation in non‐urban area with non‐university healthcare system.

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