A Multicenter Comparative Study on Two Techniques for Creating Multifenestrated Physician-Modified Stent Grafts in the Treatment of Aortic Arch Pathologies.

Objective: Physician-modified stent grafts (PMEGs) are widely used to treat complex pathologies in the aortic arch, but featured by varied preparation methods. This study was conducted to investigate the differences in operative characteristics and postoperative outcomes of PMEGs prepared using 2 methods: 3D printed models (Group A) and traditional measurement (Group B).

Methods: This retrospective study included 201 patients treated with multiple fenestrated/branched endovascular repair in the aortic arch at 3 vascular centers in China.