Homemade Device to Facilitate Percutaneous Venous Arterialization in Patients With No-Option Critical Limb Ischemia

摘要

Purpose: To describe a maneuver to facilitate percutaneous arteriovenous fistula creation during venous arterialization procedures in patients with no-option critical limb ischemia. Technique: Following a failed arterial recanalization attempt, a balloon catheter is passed up to the tip of the guidewire. Venous access is gained distally, a 4-F sheath is antegradely passed, and a 4-mm GooseNeck snare is advanced through it. A fluoroscopic view that overlaps the snare and the inflated balloon is obtained. If the vein remains anterior with respect to the artery, a needle is inserted across the vein, passing through the snare loop and puncturing the intra-arterial balloon. A wire is inserted and placed inside the punctured balloon. The balloon is retrieved and the wire externalized through the femoral access. A catheter is advanced antegradely over this wire from the artery into the vein. If the vein remains posterior to the artery, a needle is inserted, puncturing the balloon and thereafter the vein (crossing through the snare). A wire is inserted, captured by the snare, and externalized through the vein sheath. A catheter is finally advanced over this wire from the vein into the artery. Conclusion: This maneuver is a simple alternative to create an arteriovenous fistula during venous arterialization procedures in patients with no-option critical limb ischemia.