Arterial ischemic stroke in HIV: Defining and classifying etiology for research studies

Area of Science:

• Neurology
• Infectious Diseases
• Vascular Medicine

Background:

• HIV infection and its treatments are linked to an increased risk of arterial ischemic stroke.
• Progress in understanding HIV-related stroke is hindered by multiple etiologies and unclear case definitions.
• Accurate classification of stroke causes is crucial for effective management in HIV patients.

Purpose of the Study:

• To refine existing and describe new case definitions for major etiologies of HIV-related ischemic stroke.
• To develop a classification algorithm for diagnosing and subtyping HIV-associated ischemic stroke.
• To address the limitations of current case definitions in the context of HIV infection.

Main Methods:

• Consensus review of current case definitions for HIV-related stroke etiologies.
• Refinement of definitions for conditions like varicella zoster vasculopathy and antiphospholipid syndrome.
• Description of novel case definitions, such as HIV-associated vasculopathy.

Main Results:

• Revised and new case definitions for key HIV-related stroke causes were established.
• A framework for a diagnostic algorithm to classify HIV-associated ischemic stroke subtypes was proposed.
• The study provides clearer terminology and diagnostic criteria for HIV-related cerebrovascular events.

Conclusions:

• Improved case definitions are essential for advancing research and clinical practice in HIV-related stroke.
• The proposed classification algorithm can aid clinicians in diagnosing and managing stroke in HIV-infected individuals.
• Standardized definitions will facilitate better understanding of stroke mechanisms and outcomes in the context of HIV.