Use of the Stingray guidewire and the Venture catheter for crossing flush coronary chronic total occlusions due to in-stent restenosis.

We report two cases of flush chronic total occlusion due to in-stent restenosis, in which percutaneous coronary intervention attempts via over-the-wire balloons and microcatheters failed to cross the lesion. Using the Venture catheter for support and the Stingray guidewire for enhanced penetration capacity, both lesions were successfully crossed and stented.