A novel inner-branched stent-graft to overcome narrowed lumen in branched endovascular aneurysm repair.

A narrowed patent aortic lumen (<25 mm) represents a challenging scenario frequently observed during thoraco-abdominal and abdominal aortic pathologies involving the visceral vessels. The paper aims to describe the characteristics of a novel tapered-shape inner-branched custom-made stent-graft designed to specifically address the narrowed patent aortic lumen and its applicability in a wider spectrum of aortic scenarios at the reno-visceral segment.