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Updated: Jun 3, 2026

Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)

Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)

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Left main coronary artery aneurysm.

Nuno Moreno¹, Luís Gonçalo, Alexandra Castro

¹Serviço de Cardiologia do Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal. numoreno@yahoo.com

Revista Portuguesa De Cardiologia : Orgao Oficial Da Sociedade Portuguesa De Cardiologia = Portuguese Journal of Cardiology : an Official Journal of the Portuguese Society of Cardiology

|March 24, 2011

Summary

This study reports a rare case of left main coronary aneurysm in a 42-year-old man. The patient was successfully managed with anticoagulation therapy, showing clinical stability over two years.

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Area of Science:

Cardiology
Vascular Medicine
Medical Imaging

Background:

Left main coronary artery aneurysms are exceptionally rare vascular conditions.
The exact causes (pathogenesis) of these aneurysms are not well understood.
Existing treatment strategies for coronary aneurysms lack consensus and present challenges.

Observation:

A 42-year-old male presented with symptoms of coronary syndrome.
Diagnostic imaging, including coronary angiography, echocardiogram, and CT angiography, identified a large aneurysm of the left main coronary artery.
Extensive etiological investigations did not reveal a specific cause for the aneurysm.

Findings:

The case highlights a large left main coronary artery aneurysm.
Despite the lack of a clear cause, the patient was treated conservatively.
The patient remained clinically stable for two years under oral anticoagulation therapy.

Implications:

This case contributes to the limited understanding of left main coronary artery aneurysms.
Conservative management with anticoagulation may be a viable option for select patients.
Further research is needed to clarify the pathogenesis and optimize treatment protocols for these rare aneurysms.