“…These are: intra-pericardial rupture and tamponade, malperfusion phenomena (coronary, neurological, visceral) and acute aortic valve regurgitation. Despite excellent results from individual surgeons and expert centres, operative outcomes for TAAD have remained static with mortality rates from large databases that perhaps better reflect "real-world" practice still around 15 to 30% [Ergin et al, 1996, Fann et al, 1991, Kouchoukos et al, 1991, Mazzucotelli et al, 1993, Nienaber et al, 2003a, 2003b, von Segesser et al, 1996. Since the past decade, the reimplantation aortic valve sparing technique (David I) has been proposed as an alternative to supra commissural replacements or to modified BentalldeBono procedures for repair of TAAD, based upon the principle of totally resecting the aortic root, but leaving in place a macroscopically intact aortic valve .…”