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Cryptogenic stroke, aortic arch atheroma and patent foramen ovale

Carlos A Molina1, Estevo Santamarina, José Alvarez-Sabín

  • 1Neurovascular Unit, Department of Neurology, Hospital Universitari Vall d'Hebron. cmolina@vhebron.net

Cerebrovascular Diseases (Basel, Switzerland)
|November 29, 2007
PubMed

Insights

Cryptogenic stroke diagnosis is challenging. Aortic arch atheroma (AAA) and patent foramen ovale (PFO) are common in stroke patients, with age influencing their stroke risk and clinical relevance.

Area of Science:

  • Neurology
  • Cardiology
  • Vascular Medicine

Background:

  • Cryptogenic stroke presents a significant diagnostic challenge in clinical practice.
  • Aortic arch atheroma (AAA) and patent foramen ovale (PFO) are increasingly recognized as prevalent conditions in patients experiencing ischemic cerebrovascular events.
  • These conditions, particularly in the context of cryptogenic strokes, warrant focused investigation due to their potential contribution to stroke etiology.

Purpose of the Study:

  • To review the prevalence and stroke risk associated with aortic arch atheroma (AAA) and patent foramen ovale (PFO) in patients with cryptogenic stroke.
  • To explore the age-dependent clinical relevance and stroke risk for both AAA and PFO.
  • To summarize current therapeutic strategies for cryptogenic stroke patients with AAA or PFO.

Main Methods:

  • Literature review focusing on studies investigating cryptogenic stroke, AAA, and PFO.
  • Analysis of prevalence data and stroke risk factors stratified by age.
  • Synthesis of information on therapeutic interventions for these specific patient groups.

Main Results:

  • Both AAA and PFO are highly prevalent in patients with cryptogenic stroke.
  • Stroke risk and clinical significance are age-related: AAA is more frequent and severe in patients over 55, while PFO's link to stroke is stronger in those under 55.
  • Understanding these age-related differences is crucial for risk assessment and management.

Conclusions:

  • AAA and PFO are significant contributors to cryptogenic stroke, with distinct age-related risk profiles.
  • Tailoring diagnostic and therapeutic approaches based on patient age and the specific condition (AAA or PFO) is essential.
  • Further research into optimal management strategies for these patient subsets is warranted.

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