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Percutaneous intervention on the LIMA: tackling the tortuosity.

Percutaneous intervention on a tortuous left internal mammary artery (LIMA) graft is often challenging as the LIMA develops straightening and accordioning after the guidewire and dilatation balloon are placed in the graft, making angiographic assessment of the result impossible if there is no flow through the graft. We describe a new technique that overcomes this problem.