Key result
Retrograde PCI via an epicardial collateral successfully recanalizes proximal circumflex CTO.
Why the study?
Antegrade disobliteration of chronic total coronary occlusion may be technically difficult despite customized equipment, and retrograde approaches via epicardial collaterals are less described.
Demonstrates the feasibility of a retrograde approach via an epicardial collateral for percutaneous coronary intervention of a circumflex chronic total occlusion.
Epicardial collateral retrograde access enabled successful circumflex CTO PCI in one case; leaves open safety, reproducibility, and outcomes in larger series.
Antegrade disobliteration of a chronic total coronary occlusion (CTO) may be technically difficult in spite of the use of customized equipment. Retrograde approaches via intramyocardial septal or bypass grafts have been described. We report a successful Percutaneous intervention of a proximal circumflex CTO using a retrograde approach via an epicardial collateral.
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Lane et al. (2006) studied this question. Percutaneous coronary intervention of a proximal circumflex chronic total occlusion was successfully achieved using a retrograde approach via an epicardial collateral.
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