Mind the gap: A novel endovascular technique to repair a transected vessel

Abstract

Level one trauma centers experience horrific injuries on a regular basis. Blunt or penetrating trauma causing vascular injuries are treated by surgeons and interventional radiologists. When a blood vessel is completely transected, the ends of the vessel retract and vasospasm occurs as a normal survival response. When this phenomenon occurs, it is sometimes impossible to reattach the two ends of the injured vessel by surgical means and a bypass graft is often required. However, from an endovascular perspective, covered stents can serve as a vascular bypass as well. The limiting factor with an endovascular approach is the ability to successfully gain wire access across the injured vessel. The technique described in this manuscript describes a “rendezvous” method of repairing a transected axillosubclavian artery from a high-speed motorcycle accident using a steerable microcatheter. Initially, multiple failed attempts to cross the injured vessel were encountered despite using a wide variety of conventional guidewires and catheters. A steerable microcatheter was then used to safely and effectively navigate more than 15 cm through soft tissue to the opposite end of the vessel. In this critically ill patient, this technique significantly reduced the procedural time when compared to our previous experiences repairing arterial transections using traditional catheters.