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Related Experiment Video

Updated: Feb 10, 2026

Closure of a Patent Foramen Ovale PFO: An Intervention Sequence
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[Patent foramen ovale closure : update].

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Percutaneous closure of patent foramen ovale (PFO) is superior to medical therapy for preventing recurrent ischemic stroke in patients with large shunts. A multidisciplinary approach guides PFO closure decisions, considering stroke risk factors and excluding atrial fibrillation.

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Area of Science:

  • Cardiology
  • Neurology
  • Vascular Medicine

Context:

  • The management of recurrent ischemic stroke in patients with patent foramen ovale (PFO) remains a clinical challenge.
  • Percutaneous PFO closure has emerged as a potential therapeutic option, but its efficacy compared to medical therapy requires careful consideration.
  • Recent randomized trials provide crucial data on the comparative effectiveness of PFO closure versus medical management for specific patient subgroups.

Purpose:

  • To summarize the current evidence and clinical considerations regarding percutaneous PFO closure for the prevention of recurrent ischemic stroke.
  • To highlight the importance of a multidisciplinary approach in patient selection and decision-making for PFO closure.
  • To discuss key factors influencing the indication for PFO closure, including PFO anatomy, neuroimaging findings, and thrombotic risk assessment.

Summary:

  • Recent randomized trials demonstrate the superiority of percutaneous PFO closure over medical therapy in patients with large shunts and recurrent ischemic stroke.
  • Patient selection for PFO closure is complex, necessitating a multidisciplinary team (neurologists, cardiologists, hematologists) to evaluate PFO anatomy, brain imaging, venous thromboembolism history, and thrombophilia.
  • Systematic exclusion of atrial fibrillation (AF) is critical. While procedural complication rates are low, an increased incidence of AF post-closure compared to medical therapy warrants attention.

Impact:

  • Provides clinicians with evidence-based guidance on the appropriate use of percutaneous PFO closure for stroke prevention.
  • Emphasizes the need for individualized risk assessment and shared decision-making in managing patients with PFO and stroke.
  • Informs future research directions, particularly concerning the long-term management of AF after PFO closure.