Management and Treatment Strategies for Descending Thoracic Aortic Aneurysms
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A thoracic aortic aneurysm is defined as a permanent, localized dilation of the aorta exceeding 50% of its normal diameter. The descending thoracic aorta, extending from the left subclavian artery to the diaphragm, is the most common site for thoracic aneurysms. The incidence of DTAAs is rising, partly due to improved imaging modalities and an aging population. The primary risk factors include hypertension, atherosclerosis, connective tissue disorders (e.g., Marfan syndrome, Ehlers-Danlos syndrome), and a history of thoracic aortic dissection. descending 3 sata