Methods
Between 2009 and 2018 all cases ATAAD treated at Royal Brompton and Harefield NHS Foundation Trust were analysed. Patients were divided into 2 groups: a) ascending aorta (interposition) graft (AAG) without valve replacement; and b) non-valve-sparing aortic root replacement (ARR). Pre-operative covariates were compared, as well as operative characteristics and post-operative complications. Long-term survival and echocardiographic outcomes were analysed using regression analysis.