Key result
Orbital atherectomy safely passes through a newly deployed LM stent to treat severely calcified LAD CTO.
Why the study?
Orbital atherectomy is generally avoided through newly deployed stents due to risks of device-stent interaction, burr entrapment, and stent avulsion.
Case Report (n=1)
No
This case demonstrates the feasibility of performing orbital atherectomy through a newly deployed left main stent, a maneuver typically avoided due to risks of stent interaction.
May support orbital atherectomy through recent left main stents in select cases; hypothesis-generating and should not yet change practice.
Percutaneous coronary intervention (PCI) in complex, calcified coronary lesions can be assisted with orbital atherectomy (OA). OA is generally avoided when there are lesions amendable to OA distal to a newly deployed stent due to the risk of device-stent interaction, burr entrapment, and stent avulsion. We present a case documenting the successful passage of an OA system through a recently deployed left main stent to prepare a chronically occluded left anterior descending for PCI.
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Lobo et al. (2023) conducted a case report in Severe calcified coronary artery disease with chronic total occlusion (n=1). Orbital atherectomy was evaluated on Procedural success and safety (absence of stent avulsion or burr entrapment). Orbital atherectomy was safely and successfully performed through a newly deployed left main coronary stent to treat a severely calcified chronic total occlusion of the left anterior descending artery.
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