Unknown Onset Stroke: Differences Between Patients with Wake-Up Stroke and Daytime-Unwitnessed Stroke.

Objectives: Patients with unknown onset stroke (UOS) can be categorized as wake-up stroke (WUS) and daytime-unwitnessed stroke (DUS). We sought to determine whether decisions for initial imaging modalities, frequency of mismatch findings, resulting treatment decisions and outcome differ between WUS and DUS patients.

Materials And Methods: In a retrospective analysis, all patients with UOS admitted to our Stroke Unit from January to December 2018 were evaluated and classified as either WUS or DUS.