David-V Procedure Combined with Zone 2 Arch Replacement for Acute Stanford Type A Dissection

Abstract

Valve-sparing aortic root replacement is increasingly used in selected patients with acute aortic dissection and preserved valve anatomy. We present the case of a 52-year-old man with acute Stanford type A aortic dissection extending from the aortic root to the iliac bifurcation with arch involvement; this was complicated by severe aortic insufficiency and right lower extremity malperfusion. The patient underwent emergent valve-sparing root replacement using the David technique combined with zone 2 arch reconstruction under hypothermic circulatory arrest and selective antegrade cerebral perfusion. Intraoperative echocardiography confirmed excellent valve function with trace residual regurgitation. The postoperative course was notable for transient vasoplegia and re-exploration without bleeding, followed by uneventful recovery and discharge on postoperative day 11. This case highlights the feasibility of combining valve-sparing root replacement with zone 2 arch reconstruction in the acute setting of Stanford type A dissection with malperfusion, allowing restoration of true lumen flow while preserving native valve function.