Journal
JOURNAL OF VASCULAR SURGERY
Volume 56, Issue 2, Pages 565-571Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.jvs.2012.04.053
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Understanding the natural history of thoracic aortic aneurysms (TAAs) is essential to patient care and surgical decision making. In this evidence summary we discuss some of the most clinically relevant features of the disease. The true incidence of TAAs is likely to be higher than currently reported because of the inherently silent nature of TAAs. However, TAAs can become rapidly lethal once dissection or rupture occurs, highlighting the need for more robust screening. The impressive discovery of familial patterns and novel genetic loci for TAAs challenges the idea that most TAAs are simply sporadic. Although the aorta grows in an indolent manner, its rate of growth and its current diameter both have important clinical implications. Biomechanical studies have supported clinical findings of 6.0 cm as a dangerous threshold. Surgical extirpation of TAAs is currently the mainstay of effective treatment. Although endovascular TAA repair is becoming increasingly common, long-term safety remains unproven. We still need more data to support the concept that any medical therapy is effective. (J Vasc Surg 2012;56:565-71.)
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