Percutaneous Patent Foramen Ovale Closure After Stroke

Area of Science:

• Cardiology
• Neurology
• Interventional Cardiology

Background:

• Patent foramen ovale (PFO) is linked to stroke, but optimal closure strategies remain debated.
• Previous trials yielded mixed results regarding PFO closure efficacy for stroke prevention.

Purpose of the Study:

• To review characteristics of PFO-associated strokes.
• To evaluate recent evidence on PFO closure versus medical therapy for ischemic stroke.
• To define optimal patient selection criteria for PFO closure.

Main Methods:

• Systematic review of recent clinical trials (REDUCE, CLOSE, DEFENSE-PRO) and long-term follow-up data (RESPECT).
• Analysis of lesion characteristics in PFO-associated strokes.
• Comparative analysis of PFO closure versus medical management.

Main Results:

• Recent trials demonstrate significant stroke risk reduction with PFO closure compared to medical therapy alone.
• PFO-associated strokes often present with multiple, small, scattered cerebral cortical lesions or posterior circulation involvement.
• PFO closure is effective but carries risks, including atrial fibrillation.

Conclusions:

• Percutaneous PFO closure is effective in reducing recurrent stroke in selected patients.
• Patient selection should prioritize individuals with high-risk PFO-associated stroke characteristics.
• Selective PFO closure, considering potential complications, is recommended over medical therapy alone for specific patient groups.