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Cardiovascular disease is the leading cause of death in Western society and is on the rise in developing countries. Aortic diseases constitute an emerging share of the burden. New diagnostic imaging modalities, increasing life expectancy, longer exposure to elevated blood pressure, and the proliferation of modern non-invasive imaging modalities have all contributed to the growing awareness of acute and chronic aortic syndromes and pathologies.1–5
Acute aortic syndrome includes aortic dissection, intramural haematoma (IMH), and symptomatic aortic ulcer. Propagation of the dissection can proceed in anterograde or retrograde fashion from the initial tear involving side branches and causing complications such as malperfusion syndromes, tamponade, or aortic valve insufficiency.6 Common predisposing factors in the International Registry of Aortic Dissection (IRAD) were hypertension in 72% of cases, followed by atherosclerosis in 31% and previous cardiac surgery in 18% (table 1). Analysis of the young patients with dissection (<40 years of age) revealed that younger patients were less likely to have a history of hypertension (34%) or atherosclerosis (1%), but were more likely to have Marfan syndrome, bicuspid aortic valve, and/or prior aortic surgery.7
Diagnostic imaging studies in the setting of suspected aortic dissection is aimed to rapidly confirm or exclude the diagnosis, classify the extent of the dissection, and assess the emergent nature of the problem, with correct classification in distal or proximal dissection being of paramount importance (fig 1).
In compliance with EBAC/EACCME guidelines, all authors participating in Education in Heart have disclosed potential conflicts of interest that might cause a bias in the article