Totally Percutaneous Aneurysm Sac Embolization During Endovascular Aneurysm Repair

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Purpose: To describe a sac embolization technique modification for type II endoleak prevention that makes a totally percutaneous approach feasible during endovascular aneurysm repair (EVAR) using the Excluder stent-graft. Technique: Percutaneous access of the common femoral arteries is obtained and 2 suture-mediated closure systems are placed on each side. A 16-F or 18-F sheath is placed for delivery of the Excluder stent-graft main body and a 16-F sheath is used on the contralateral side. After the stent-graft and contralateral limb component are delivered to their intended positions, a standard 0.035-inch hydrophilic guidewire is placed into the aneurysm sac through the same 16-F sheath. Then a 5-F, straight, 65-cm-long catheter is advanced over the standard wire into the sac in parallel with the contralateral limb. The contralateral limb is deployed, the standard guidewire is removed; coils are released through the 5-F catheter into the sac, followed by injection of 5 to 10 mL of double-component fibrin glue. Conclusion: Totally percutaneous, nonselective sac embolization during EVAR, with a single access on each femoral artery, is feasible and helpful to physicians who wish to perform intraoperative sac embolization without relevant changes in their usual EVAR procedure.

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