Patent foramen ovale: diagnostic evaluation and the role of device closure

Ahmed R Gonnah1,2, Mahima S Bharadwaj3,2, Hassan Nassar1

  • 1University of Liverpool School of Medicine, Liverpool, UK.

Insights

A patent foramen ovale (PFO) can cause cryptogenic stroke through paradoxical embolism. This review covers PFO diagnosis, management guidelines, and device closure options.

Area of Science:

  • Cardiology
  • Neurology
  • Medical Devices

Background:

  • Patent foramen ovale (PFO) is a common cardiac anomaly.
  • PFO is increasingly recognized as a risk factor for cryptogenic stroke via paradoxical embolism.
  • Recent European Society of Cardiology guidelines address PFO diagnosis and management.

Purpose of the Study:

  • To guide physicians on the diagnostic and referral process for PFO closure.
  • To review clinical trials comparing PFO device closure with medical therapy.
  • To outline the NHS England commissioning process for PFO management.

Main Methods:

  • Review of current literature and European Society of Cardiology guidelines.
  • Analysis of clinical trials on PFO device closure versus medical management.
  • Examination of the NHS England PFO commissioning process.

Main Results:

  • PFO is linked to paradoxical embolism and cryptogenic stroke.
  • Device closure is a viable option compared to medical therapy in select patients.
  • Specific criteria and pathways exist for PFO management and device closure.

Conclusions:

  • Physicians should be aware of PFO as a cause of cryptogenic stroke.
  • Multidisciplinary evaluation is crucial for PFO closure decisions.
  • Understanding PFO management guidelines and device closure indications is essential.

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