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Toward understanding the atrial septum in cryptogenic stroke

Paul E Cotter1, Peter J Martin, Mark Belham

  • 1Department of Medicine, University of Cambridge, Cambridge, UK. paul.cotter@addenbrookes.nhs.uk

International Journal of Stroke : Official Journal of the International Stroke Society
|September 29, 2011
PubMed

Insights

Patent foramen ovale is a common cause of unexplained stroke in young adults. Understanding atrial septum anatomy and cardiac imaging is crucial for neurologists to diagnose and prevent recurrent strokes.

Area of Science:

  • Cardiology
  • Neurology
  • Medical Imaging

Background:

  • Ischemic stroke in younger individuals often lacks a clear cause.
  • A patent foramen ovale (PFO) is frequently associated with unexplained strokes in this demographic.
  • Detailed cardiac assessment is vital for identifying low-risk stroke etiologies.

Purpose of the Study:

  • To review the embryology and anatomy of the right heart, focusing on PFO and related atrial septum abnormalities.
  • To elucidate cardiac imaging techniques for investigating unexplained stroke.
  • To provide neurologists with a framework for understanding cardiac investigations and interpreting findings for secondary stroke prevention.

Main Methods:

  • Review of cardiac development and anatomy, specifically the atrial septum and PFO.
  • Discussion of echocardiographic imaging modalities for stroke workup.
  • Integration of European Association of Echocardiography guidelines for investigation protocols.

Main Results:

  • Detailed anatomical review of the atrial septum and PFO.
  • Illustrative examples of cardiac imaging in unexplained stroke cases.
  • A proposed investigative pathway for neurologists.

Conclusions:

  • Understanding atrial septum anatomy and PFO is essential for neurologists managing unexplained stroke.
  • Appropriate cardiac imaging, guided by established protocols, aids in identifying stroke causes.
  • This knowledge supports informed decisions on secondary stroke prevention strategies.

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