The present disclosure provides a stent graft having a lumen, the stent graft comprising (a) a first side and a second side opposite the first side, wherein the first side and the second side of the stent graft extend between a first end and a second end of the stent graft, and (b) a longitudinal support extending between the first end and the second end of the stent graft and coupled to one of the first side or the second side of the stent graft, and wherein, in an expanded condition, the stent graft has a radius of curvature and has a length of the first side that is longer than a length of the second side.