Outcome Differences by Delirium Motor Subtype in Patients with Ischemic Stroke

Area of Science:

• Neurology
• Geriatrics
• Psychiatry

Background:

• Delirium is a common complication in ischemic stroke patients.
• Motor subtypes of delirium (hyperactive, hypoactive, mixed) may influence clinical presentation and prognosis.

Purpose of the Study:

• To evaluate the association between delirium motor subtypes and outcomes in patients with ischemic stroke.

Main Methods:

• Prospective study of ischemic stroke patients admitted to a stroke unit (August 2017 - March 2019).
• Delirium diagnosis based on DSM-5 criteria.
• Assessment using the Korean Delirium Motor Subtype Scale (K-DMSS) and Korean Delirium Rating Scale-Revised-98 (K-DRS-98).
• Evaluation of clinical characteristics and short-term outcomes.

Main Results:

• 10.18% incidence of delirium among 943 stroke patients.
• Hypoactive subtype showed highest NIHSS and mRS scores.
• Mixed and hypoactive subtypes experienced longer delirium duration and severity.
• Hypoactive subtype associated with significantly longer hospital stays, even after adjustment.

Conclusions:

• Delirium motor subtype is a significant factor in the characteristics and outcomes of ischemic stroke patients.
• Identifying delirium subtypes can help predict stroke patient prognosis and tailor management.