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Related Experiment Video

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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 circumflex coronary aneurysm with separated left main trunk].

Yoshitaka Takeda¹, K Kawahito, M Tanaka

¹Department of Cardiovascular Surgery, Shonan-Kamakura General Hospital, Kamakura, Japan.

Kyobu Geka. the Japanese Journal of Thoracic Surgery

|March 14, 2007

Summary

This case study details a rare coronary artery anomaly where the left main coronary artery bifurcated into separate left anterior descending and left circumflex origins. A significant aneurysm and stenosis in the left circumflex artery were successfully treated with ligation and bypass grafting.

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Area of Science:

Cardiology
Cardiovascular Surgery
Medical Imaging

Background:

Coronary artery anomalies are rare but can lead to significant cardiovascular events.
Congenital variations in coronary artery origins require accurate diagnosis for appropriate management.
Aneurysms and stenosis in coronary arteries pose a risk of myocardial infarction and sudden cardiac death.

Observation:

A 66-year-old male on hemodialysis presented with exertional dyspnea.
Coronary angiography and CT revealed separate origins for the left anterior descending (LAD) and left circumflex (LCx) coronary arteries from the left aortic sinus.
The LCx exhibited a 2 cm aneurysm with 99% proximal stenosis.

Findings:

The patient had a rare coronary anatomical variant: separated left main coronary trunks (LMT).
A significant left circumflex coronary aneurysm with critical stenosis was identified.
Successful surgical intervention involved aneurysm ligation and coronary artery bypass grafting.

Implications:

This case highlights the importance of advanced imaging in diagnosing complex coronary artery anomalies.
Surgical management of coronary aneurysms and stenosis in anomalous origins can be effective.
Understanding such variations is crucial for preventing adverse cardiac events in affected individuals.