Exit of CrossBoss between stent struts within chronic total occlusion to subintimal space: Completion of case via retrograde approach with rendezvous in coronary

We present a case of successful percutaneous revascularization of a chronic total coronary occlusion due to in-stent restenosis. The CrossBoss catheter (BridgePoint Medical, Minneapolis, MN, USA) was used initially because it is reported to be effective in this setting with a low risk of exiting occluded stents. To the best of our knowledge, this is the first reported case of a CrossBoss penetrating through stent struts into the subintimal space. The case was completed via the retrograde approach with 'rendezvous in coronary'.