Treatment of a juxtarenal aneurysm with a parallel graft in the left renal artery and polymer-based technology to seal the entire aneurysmal sac

Background Presenting the treatment of a juxtarenal aneurysm using a Nellix device combined with a chimney stent in a renal artery. Case Report A 72-year-old woman was diagnosed with a 5.5-cm bilobed juxtarenal aneurysm. She underwent successful aneurysm repair with the Nellix system combined with a chimney stent in the left renal artery. Angio computed tomography control showed complete sealing of the aneurysm sac and patent chimney stent. Conclusions Endovascular aneurysm sealing combined with chimney may be a valid way to treat juxtarenal aneurysms, and the conformable polymer-filled endobags may provide a durable seal around the chimney-graft preventing gutter formation.