Comparative Study of Antegrade Versus Retrograde Cerebral Perfusion in Acute Type A Aortic Dissection: A Prospective Study

In antegrade cerebral perfusion (ACP), patients underwent cannulation of the right axillary artery using an interposition Dacron graft (7 mm) connected to a cardiopulmonary bypass (CPB) circuit. During surgery, ACP delivered oxygenated blood flow directly into the brain arteries to maintain cerebral protection during the period of deep hypothermic circulatory arrest (DHCA), enabling the surgical team to perform the distal aortic anastomosis safely.

In retrograde cerebral perfusion (RCP), cannulation of the superior vena cava (SVC) was performed to deliver blood flow in reverse direction during deep hypothermic circulatory arrest (DHCA). This method aimed to provide cerebral protection by supporting cerebral metabolism during the surgical repair of acute Type A aortic dissection.