Imaging of Heritable Thoracic Aortic Disease

Area of Science:

• Genetics and Cardiovascular Medicine
• Medical Imaging in Cardiology

Background:

• Heritable Thoracic Aortic Disease (HTAD) arises from genetic mutations, significantly elevating the risk of thoracic aortic aneurysms and dissections.
• Syndromic forms of HTAD, such as Marfan, Loeys-Dietz, vascular Ehlers Danlos, and Turner Syndromes, present with systemic manifestations.
• Understanding HTAD is crucial for managing patients with a high genetic predisposition to aortic pathology.

Approach:

• This review synthesizes current knowledge on the pathophysiology of HTAD.
• It details the role and specific features of cardiovascular imaging modalities in screening and monitoring.
• Management strategies, including surgical indications based on consensus guidelines, are discussed.

Key Points:

• Genetic mutations are the primary cause of HTAD, leading to a high risk of aortic events.
• Cardiovascular imaging, including echocardiography, CT, and MRI, is essential for early detection and surveillance.
• Prophylactic aortic replacement is recommended at specific diameter thresholds to prevent catastrophic events.

Conclusions:

• Effective management of HTAD relies on understanding its genetic basis and clinical manifestations.
• Advanced imaging techniques are vital for accurate diagnosis and monitoring of aortic dilatation.
• Timely surgical intervention based on established guidelines is critical for improving patient outcomes in HTAD.