Test Accuracy of Short Screening Tests for Diagnosis of Delirium or Cognitive Impairment in an Acute Stroke Unit Setting

STROKEAHA: 8/29/13

Background and Purpose—Guidelines recommend cognitive screening in acute stroke. Various instruments are available, with no consensus on a preferred tool. We aimed to describe test accuracy of brief screening tools for diagnosis of cognitive impairment and delirium in acute stroke.

Methods—We collected data on sequential stroke unit admission in a single center. Four assessors trained in cognitive testing independently performed screening and reference tests. Brief assessments comprised the following: 10- and 4-point Abbreviated Mental Test (AMT-10; AMT-4); 4-A Test (4AT); Clock Drawing Test (CDT); Cog-4; and Glasgow Coma Scale (GCS). Read more