Arq Bras Cardiol: Imagem cardiovasc. 2024; 37(1): e20230072

Left Ventricular Aneurysm With Contained Rupture

Priscila Nasser de

Carvalho

, Mariane Higa

Shinzato

, Roberto Tadeu Magro

Kroll

, Andrea Cunha

Cortellazzi

, Aloysio Abdo Silva

Campos

DOI: 10.36660/abcimg.20230072i

Introduction

Left ventricular aneurysms (LVA) and left ventricular pseudoaneurysms (LVPA) are serious complications resulting from transmural myocardial infarction. Their incidence has decreased considerably with the advancements of interventional cardiology, using early revascularization of the compromised coronary artery, preventing ventricular remodeling. Differential diagnosis is often not easy; however, it must be made early.

An LVA occurs months or years after acute myocardial infarction. It is formed by an area of scar tissue and contains the three layers of the ventricular wall (endocardium, myocardium, and pericardium). Its wall is preserved and may contain thrombi. An LVPA is a rare complication that can occur days or months after the infarction. It is formed by the weakened wall that ruptures after the infarction, in a way that this rupture is contained by the pericardium, resulting in discontinuity of the endocardial border. Usually, an LVA is located in the apical and anterior regions, while an LVPA is located in the posterolateral region of the left ventricle.

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