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INTRODUCTION: Proximal aortic neck dilatation (PND) is associated with increased rate of complication after endovascular aneurysm repair (EVAR). Although many studies investigated PND after the placement of endografts that use self-expanding stents, there are no such reports for patients treated with endografts that use polymerfilled sealing rings. The purpose of this study is to examine PND and graft migration after EVAR with the Ovation stent graft.

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