Can the left subclavian artery revascularization during aortic arch surgery be managed using the in situ left internal mammary artery?

The management of the left subclavian artery (LSA) revascularization during aortic arch surgery is controversial and often challenging, especially during an emergency life-saving procedure. We report on a case of a 64-year old man, admitted to our institution with a Type A acute aortic dissection who underwent a frozen elephant trunk procedure with debranching of the supra-aortic vessels completed with an LSA revascularization using the in situ left internal mammary artery.