“…Many services use echocardiography as the sole preoperative assessment for surgical indication in acute type A dissections. In general, the transesophageal echocardiography is preferred, which can reach 97-100% of sensitivity and 77 97% of specificity 13 , 14 . It is also of importance the fact that the echocardiography provides information on the presence and magnitude of aortic regurgitation, aortic annulus dimensions, evidence of aortic regurgitation prior to the dissection; these are key data for surgical management, regarding the aortic valve preservation 14 .…”