A giant left ventricular pseudoaneurysm as a late sequela of aortic valve endocarditis.

Left ventricular pseudoaneurysm is an uncommon complication of infective endocarditis, usually presenting within several weeks of the infective episode. We describe a 37-year-old man who presented with exertional dyspnea nearly a year after a prolonged hospitalization for lung abscess. Imaging studies showed new aortic valve regurgitation and a giant pseudoaneurysm extending inferoposteriorly from the left ventricle. At thoracotomy, a perforated aortic valve was found, suggesting a healed endocarditis. The patient underwent successful aneurysmectomy and patch closure with aortic valve repair. This case underscores the potential for very late nonvalvular cardiac complications of infective endocarditis and is also distinctive because of the large size of the pseudoaneurysm.