TY - CHAP M1 - Book, Section TI - Aortic Aneurysms A1 - Halsted, Karen A1 - De Marchi, Lorenzo A2 - Freeman, Brian S. A2 - Berger, Jeffrey S. PY - 2016 T2 - Anesthesiology Core Review: Part Two Advanced Exam AB - Due to the high pressure of the arterial system, the aorta is susceptible to the development of aneurysms and dissection. An aortic aneurysm is a dilatation greater than 3 cm anywhere along the aorta, including the ascending, arch, thoracic, or abdominal portions. Aortic aneurysms are present in 1%–4% of the population over age 50. Aortic dissection occurs when a false lumen is created by blood flowing through a tear in the intimal layer. Dissections put the patient at risk for disruption of flow to the aortic branch arteries. Both aneurysm and dissection of the aorta have the potential for disastrous and possibly fatal aortic rupture if left untreated. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/10/03 UR - accessanesthesiology.mhmedical.com/content.aspx?aid=1135740557 ER -