A 7F sheath, 7F LCB guide was chosen. The lesion was crossed with a standard 0.014″ guidewire. A 4.0 mm Spider FX filter (Medtronic, Minneapolis, Minnesota, USA) was deployed distally (Video 25.3). Balloon angioplasty with a semi-compliant 2.25 × 12 mm balloon was performed. A 2.5 × 30 mm and a 2.5 × 24 mm Endeavor stent (Medtronic, USA) were deployed at 16 atmospheres (Videos 25.4 and 25.5). We then attempted to post-dilate the stents with a 2.5 × 20 mm noncompliant balloon but this would not cross the proximal part of the stent. A 2.5 × 12 mm balloon also failed to cross the proximal stent. Unfortunately, our attempts to push the noncompliant balloon forward resulted in the guide being pushed backwards, which in turn resulted in the filter wire being pulled more proximally into the previously deployed stent (Fig. 25.2; Video 25.6). This was recognized. We then attempted to push the filter distally but the filter remained trapped with the distal stent. We then attempted to retrieve the filter with its retrieval catheter (Video 25.9). There was difficulty in doing so, and the previously placed stents were crumpled and “accordioned” into the proximal vein graft (Video 25.10). The flow into the SVG was now compromised with TIMI 0 flow.