Hepatorenal Revascularization Enables Endovascular Aneurysm Repair on a Patient with Abdominal Aortic Aneurysm and an Ectopic Right Renal Artery

Double D Technique: An Innovative Modified Bifurcated Stent Graft Deployment Strategy for an Isolated Common Iliac Artery Aneurysm With a Challenging Renal Artery Anatomy

PURPOSE

Endovascular aneurysm repair (EVAR) for an isolated common iliac artery aneurysm (iCIAA) sometimes requires a bifurcated stent graft (SG). In EVAR, it is essential to preserve the renal artery (RA). However, this is challenging in cases of anatomical variation. The double D technique (DDT) can be used in anatomically inadequate cases with a commercially approved bifurcated SG. Here, we report the repair of iCIAA in the presence of a challenging RA anatomy, through EVAR using the DDT.

CASE REPORT

An 84-year-old woman was diagnosed with a maximal 35-mm diameter left iCIAA and a nonaneurysmal aorta by computed tomography (CT), which also showed that the right RA arose 50-mm above the aortic bifurcation. The DDT was chosen because commercially approved bifurcated SGs typically require a distance of >70 mm from the proximal position to the aortic bifurcation. Postoperative CT showed excellent results with no endoleaks or SG kinking and occlusion, as well as preservation of robust blood flow to the right RA.

CONCLUSION

Endovascular aneurysm repair using the DDT can be an alternative option for treatment of iCIAA with a challenging RA anatomy.