The Thoraflex hybrid prosthesis represents the latest evolution of the classic frozen elephant trunk (FET) (Figure 1A,B) prosthesis. It provides a multi-branched, arch hybrid graft that potentially allows treating (for specific indications and in a single surgical step), complex lesions of the thoracic aorta by combining endovascular treatment with conventional surgery (1). Open in a separate window Figure 1 The Vascutek Thoraflex hybrid stent-graft (A) and its clinical application (B).