Incidence of Major Complication in Case of Thoracic Aortic Aneurysm

Inclusion Criteria: * Documentation of an aortic root aneurysm \> 40 mm * Agreement to participate to a longitudinal study and available for a 5 years follow-up Exclusion Criteria: * Presence of comorbidities or pathology with a prognosis of less than 1 year * Personal or family history of genetically documented elastic tissue disease or patient meeting the GAND clinical criteria suggestive of Marfan disease * High-grade mitra-aortic valve disease, even if asymptomatic * Unbalanced hypertension ≥ 180/110 mmHg * Aneurysm (regardless of thoracic or abdominal location) ≥ 50 mm * Aneurysm (regardless of thoracic or abdominal location) with documented progression of more than 5 mm over one year * History of aortic surgery or endovascular intervention and history of type B aortic dissection of medical treatment * Renal insufficiency on dialysis, or GFR\< 30 ml/mn (CKD-EPI)