Single-Stage Total Arch Replacement With Open Stent Graft for Kommerell's Diverticulum With Right-Sided Aortic Arch.

We treated a 70-year-old patient with Kommerell's diverticulum associated with an aberrant left subclavian artery and right aortic arch using single-stage total arch replacement with a commercially available open stent graft through only a median sternotomy. A four-branched prosthetic graft was implanted after insertion of the open stent graft through the anastomotic site under moderate hypothermia and cardiopulmonary bypass with selective cerebral perfusion. The aberrant subclavian artery was occluded by coil embolization from the distal site and anatomically reconstructed from the prosthetic graft. This approach is safe and effective and allows avoidance of a right thoracotomy and second stage intervention.