Association Between Genetic Diagnosis and Clinical Outcomes in Patients With Heritable Thoracic Aortic Disease

Background Differences in the clinical course of heritable thoracic aortic disease based on the disease-causing gene have not been fully evaluated. To clarify the clinical relevance of causative genes in heritable thoracic aortic disease, we assessed the clinical course of patients categorized based on genetic diagnosis. Methods and Results We investigated cardiovascular events and mortality in 518 genetically diagnosed patients in 4 groups: Group 1, (n=344); Group 2, , , , or (n=74); Group 3, (n=60); and Group 4, or (n=40). The median age at the first cardiovascular event ranged from 30.0 to 35.5 years ( =0.36). Patients with gene variants related to transforming growth factor-β signaling had a significantly higher rate of subsequent events than those with variants (adjusted hazard ratio, 2.33 [95% CI, 1.60-3.38];