Keywords: American Society of Echocardiography; DeBakey classification; European Association of Echocardiography; European Society of Cardiology; International Registry of Aortic Dissection; Penn classification; Society of Cardiovascular Anesthesiologists; Society of Thoracic Surgeons; Stanford classification; acute aortic syndrome; aortic dissection; aortic regurgitation; aortic root; branch vessel involvement; computed axial tomography; coronary dissection; cusp prolapse; endovascular repair; intramural hematoma; magnetic resonance imaging; malperfusion; penetrating atherosclerotic ulcer; pericardial tamponade; regional wall motion abnormalities; sinotubular junction; three-dimensional imaging; transesophageal echocardiography; transthoracic echocardiography; type-A dissection; type-B dissection.