Intraoperative aortic dissection

Acute aortic dissection is a highly lethal cardiovascular emergency, characterized by the progressive separation of the aortic layers due to a column of blood.Associated cardiac complications, including cardiac tamponade, compression of the coronary ostium by the false lumen, and acute aortic insufficiency, evolve rapidly and can be fatal.Surgical mortality in iatrogenic type A aortic dissection -especially secondary to heart surgery -is estimated to be higher than in non-iatrogenic cases.With this context, we present the case of a 71-year-old patient with severe three-vessel coronary disease who underwent myocardial revascularization surgery, and during cardiopulmonary bypass, a type A aortic dissection was identified and successfully managed.