[2026-04-29] Huge Left Atrial Aneurysm With Severe Mitral Regurgitation: A Case Report

Nguyen Thi Viet  Nga; Nguyen Hoang  Ha; Pham Thi  Hue; Le Quang  Huy

doi:10.33165/rmj.2027.e276635

Authors

Nguyen Thi Viet Nga International Department, Hanoi Heart Hospital, Hanoi, Vietnam https://orcid.org/0009-0002-9673-6030
Nguyen Hoang Ha Department of Cardiac Surgery, Hanoi Heart Hospital, Hanoi, Vietnam
Pham Thi Hue International Department, Hanoi Heart Hospital, Hanoi, Vietnam https://orcid.org/0009-0006-8941-4737
Le Quang Huy International Department, Hanoi Heart Hospital, Hanoi, Vietnam https://orcid.org/0009-0006-4407-1646

DOI:

https://doi.org/10.33165/rmj.2027.e276635

Keywords:

Huge left atrial aneurysm, Echocardiography, Computed tomography imaging, Surgical resection, Takotsubo cardiomyopathy

Abstract

Background: Huge left atrial aneurysm (LAA) is a rare cardiac anomaly that may be detected late, leading to serious complications such as systemic thromboembolism, arrhythmias, mitral regurgitation, and heart failure. Early surgical intervention is currently
the standard treatment for symptomatic cases to prevent catastrophic consequences.

Case Presentation: A 31-year-old woman presented with progressively worsening shortness of breath and intermittent palpitations, diagnosed with a huge LAA and severe mitral regurgitation. Two surgeries were undertaken: the first was LAA ligation and mitral valve repair, followed 7 days later, by complete resection due to compression complications. The patient subsequently developed severe left ventricular dysfunction but recovered well after 10 days of intra-aortic balloon pump support and intensive medical treatment.

Conclusions: This case highlights the importance of appropriate surgical techniques and therapeutic challenges in managing patients with complex LAA.

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