Aortic Regurgitation in Acute Type-A Aortic Dissection: A Clinical Classification for the Perioperative Echocardiographer in the Era of the Functional Aortic Annulus

摘要

THE FUNCTIONAL aortic annulus (FAA) has matured as an echocardiographic concept to provide a framework for echocardio-graphic analysis of the aortic root to guide aortic valve repair for both the bicuspid and tricuspid valves. The FAA as a complex contains the following major components (Fig 1): the aortic annulus, defined as the hinge points of the aortic valve leaflets; of root replacement (commonly, a David-V procedure), as outlined earlier. The imperative in this surgical emergency is to save the life of the patient in ATAD; the approach to surgical management of the root and AR must be framed within this overall objective.