Abstract
In situ laser fenestration during thoracic endovascular aortic repair is effective and widely utilized, although achieving orthogonal laser alignment can be difficult in patients with complex aortic arch anatomy. A modification of the previously described "squid capture" technique is presented, employing a temporary, removable wire loop to stabilize a sheath against the endograft and facilitate perpendicular laser positioning. This approach minimizes intravascular manipulation, reducing the risk of embolic events, stroke, and arterial injury. A case involving a 60-year-old male with residual dissection and aneurysmal degeneration illustrates the technique's application. The method is simple, reproducible, and suited for challenging anatomy.