Simplified Dual-Lumen Catheter-Facilitated Reverse Wire Technique for Markedly Angulated Collateral Channel Entry in Retrograde Chronic Total Occlusion Intervention

The retrograde approach has significantly improved the success rates in complex coronary total occlusion (CTO) lesions. It also become predominant and important strategy CTO recanalization. However, unsuccessful crossing of collateral channels is strongest predictor failure, adverse channel morphology, including large entry angle, could reduce rate crossing. Reverse wire technique (RWT) was specifically developed for bifurcation lesions with an extremely angulated side branch, nowadays, this can be achieved by support a dual-lumen catheter (DLC). We report novel method named "simplified catheter-facilitated RWT" to facilitate markedly intervention. This new simplified making reverse bend DLC aorta instead outside guiding catheter, which feasible, effective, safe percutaneous intervention (PCI).