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Atrial Septal Aneurysms: The Heart's Hidden Bulge

Murat Özmen1, Ramazan Aslan2, Onur Akgün3

  • 1Department of Cardiology, Erzurum City Hospital, Erzurum.

Acta Cardiologica Sinica
|March 30, 2026
PubMed

Insights

Atrial septal aneurysms (ASAs) are rare heart conditions often found incidentally. This review stresses the need for standardized diagnostic criteria and a multidisciplinary approach for managing ASAs and their potential complications.

Area of Science:

  • Cardiology
  • Medical Imaging

Background:

  • Atrial septal aneurysms (ASAs) are typically asymptomatic cardiac findings.
  • Their prevalence remains uncertain, but they can be linked to other structural heart defects.

Purpose of the Study:

  • To provide a comprehensive overview of atrial septal aneurysms.
  • To highlight the necessity for standardized diagnostic criteria and a unified patient management strategy.

Main Methods:

  • Review of existing literature on atrial septal aneurysms.
  • Analysis of diagnostic modalities including echocardiography, cardiac MRI, and CT scans.

Main Results:

  • ASAs can be associated with patent foramen ovale and atrial septal defects.
  • Potential risks include systemic embolization, arrhythmias, and migraine headaches.
  • Current diagnostic criteria lack standardization.

Conclusions:

  • Standardized diagnostic criteria are crucial for both research and clinical practice.
  • A multidisciplinary approach is recommended for managing patients with ASAs.
  • Management strategies range from observation for isolated cases to invasive interventions for complicated or associated defects.

Keywords:
ArrhythmiasAtrial septal aneurysmEchocardiographyEmbolizationPatent foramen ovale

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