Abnormal left ventricle morphology Left ventricular aneurysm 2024-01-07T13:13:57Z A left ventricular aneurysm is one of the worst complications after acute myocardial infarction. The natural course leading to the formation of a ventricular aneurysm involves a full-thickness infarct that has been replaced by fibrous tissue. This inert portion cannot take part in the contraction and herniates outward during systole. Most of the LV aneurysms are asymptomatic and are found in follow-up echocardiography. However, large symptomatic LV aneurysms can cause heart failure, ventricular tachyarrhythmias, and sudden cardiac death. A severely scarred portion of infarcted ventricular myocardium that does not contract normally but instead bulges outward while the rest of the ventricle contracts during systole.