[Ten questions about patent foramen ovale]

Area of Science:

• Cardiology
• Neurology
• Vascular Medicine

Background:

• Patent foramen ovale (PFO) is a remnant fetal cardiac shunt present in 20-25% of adults.
• PFO is frequently asymptomatic but associated with cryptogenic stroke, migraine with aura, and decompression illness.

Purpose of the Study:

• To address key questions on the diagnosis, management, and treatment of PFO.
• To synthesize current evidence and guidelines for PFO management.

Main Methods:

• Focused literature review of recent studies and guidelines.
• Analysis of evidence for PFO closure in associated conditions.

Main Results:

• Conflicting results exist from non-randomized studies on PFO closure efficacy.
• PFO diagnosis and management strategies are evolving.

Conclusions:

• PFO remains a significant clinical consideration, particularly in cryptogenic stroke.
• Further high-quality research is needed to clarify optimal PFO treatment strategies.