This thesis focused on the clinical outcome of endografts designed for infrarenal and complex aneurysms, and the considerations of these endografts in relation to patients’ anatomy. Chapter 2 gives an overview of the available endografts for infrarenal EVAR and Chapter 3 gives an overview of the available fenestrated endografts (FEVAR) for pararenal and suprarenal repair. As discussed in chapter 4 age itself should not be a reason to withhold treatment with FEVAR. FEVAR is an expensive treatment compared to open surgical treatment, and a balance in cost-effectiveness, gained life years and gained quality adjusted life years has yet to be settled. Two mainly used fenestrated endografts have a different effect on native patient anatomy. In Ch...