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Left atrial appendage aneurysm: A case report
Dmitry Vladimirovich Belov1, Vladimir Ivanovich Moskalev2, Dmitry Victorovich Garbuzenko3
1Department of Hospital Surgery, South Ural State Medical University, Chelyabinsk 454092, Russia.
World Journal of Clinical Cases
|October 21, 2020
Summary
A rare left atrial appendage aneurysm was surgically treated in a 58-year-old man. The procedure involved mitral valve repair and coronary artery stenting to prevent life-threatening complications.
Area of Science:
- Cardiology
- Cardiac Surgery
- Vascular Medicine
Background:
- Left atrial appendage aneurysm is a rare cardiac defect with potentially lethal complications, increasing with size.
- Approximately 150 cases have been documented, highlighting its rarity.
- This case involves an aneurysm causing mitral valve deformation and coronary artery compromise.
Observation:
- A 58-year-old male presented with exertional dyspnea, weakness, and dizziness.
- Echocardiography suggested left atrial aneurysm; MRI confirmed the diagnosis.
- The patient underwent aneurysmectomy, mitral annuloplasty, and coronary artery bifurcation stenting.
Findings:
- Successful surgical excision of the left atrial appendage aneurysm.
- Correction of relative mitral insufficiency with an annuloplasty ring.
- Bifurcation stenting addressed significant stenosis in the left main and circumflex coronary arteries.
Implications:
- Surgical intervention is crucial for managing left atrial appendage aneurysms to prevent severe outcomes.
- This case demonstrates a complex surgical approach for a rare cardiac anomaly.
- Effective management requires addressing associated valvular and coronary artery pathologies.

