Retrograde approach through rca epicardial to lad.Prox xs was advanced with no issues over sion black.Xs wouldn't pass corkscrew spiral in epicardial collateral.Sion black was changed out for suoh03.Wire was able to travel into lad and to distal cap of the prox lad cto.Xs was unable to continue along suoh03.Xs was exchanged for caravel.Caravel was unable to navigate through the corkscrew spiral.Carvel was removed and it appeared to fracture in epicardial.On fluroscopy, it appeared as a radiopaque weld point on the suoh03.Making assumptions that the suoh03 may have kinked or splintered.Finecross m3 was then advanced over suoh03.M3 wouldn't pass corkscrew as well, m3 and suoh03 were removed.There was a slice of something left in the epicardial.A new suoh03 was inserted over the m3 and both wire and microcatheter were advanced to distal segment of the cto, using same epicardial.
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