Diagnostic Evaluation of Stroke Etiology

Area of Science:

• Neurology
• Cardiology
• Vascular Medicine

Background:

• Precise diagnosis is essential for effective ischemic stroke therapies.
• Understanding stroke pathophysiology and comorbidities is crucial for treatment.
• Optimizing recurrent stroke prevention requires a comprehensive approach.

Purpose of the Study:

• To provide an evidence-based approach for confirming ischemic stroke diagnosis.
• To characterize comorbidities offering insights into stroke pathophysiology.
• To identify treatment targets for optimizing recurrent stroke prevention.

Main Methods:

• Routine inclusion of patent foramen ovale, intermittent atrial fibrillation, and unstable plaque identification in stroke workup.
• Utilizing insertable cardiac monitors for detecting atrial fibrillation.
• Employing MRI of carotid plaque to identify unstable plaque.

Main Results:

• Patent foramen ovale closure shows therapeutic utility in select younger patients.
• Atrial fibrillation detected in approximately 10% of patients monitored for 12 months.
• MRI effectively identifies unstable carotid plaque as a source of embolism.

Conclusions:

• A nuanced stroke workup should routinely assess intracranial/extracranial vessels, cardiac structure/rhythm, and systemic causes.
• Specific diagnostic components depend on clinical context and initial results.
• Targeted interventions based on comprehensive evaluation optimize recurrent stroke prevention.