AI Article Synopsis
- Successfully performed resection of a large asymptomatic left atrial appendage aneurysm (LAAA) via partial median sternotomy under beating heart conditions.
- Patient imaging revealed a significant aneurysm size of approximately 80 mm in diameter, despite the absence of symptoms prior to surgery.
- Long-term follow-up is crucial for monitoring cardiac function, as LAAA is typically a congenital condition that may only become evident in adulthood.
Article Abstract
We successfully performed resection of a large asymptomatic left atrial appendage aneurysm( LAAA) under non-cardiac arrest. Although the patient was asymptomatic, chest X-ray showed projection of the third left aortic arch, and computed tomography angiography showed a huge left atrial appendage aneurysm. Therefore, we decided to perform LAAA resection via a partial median sternotomy. Aneurysmectomy was performed by placing the patient on pump beating heart. The size of the resected aneurysm was approximately 80 mm in diameter. Because the base of the LAAA was constricted and the tissue was not fragile, resection was performed using an automatic excision anastomosis device( Echelon Flex). The patient's postoperative course was uneventful. Left atrial appendage aneurysm is believed to be congenital;however, it is often detected in adulthood. Long-term follow-up is necessary to ensure maintenance of optimal cardiac function.
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