A review article was published to study the applications and techniques of peripheral atherectomy devices.A retrospective review of medtronic¿s directional atherectomy devices to treat in-stent restenosis involved the use of distal embolic protection (dep) device, spider fx in 56% of cases.It was reported in the article that distal embolization requiring treatment occurred in 7% of patients, and debris was present in the dep in 82% of them.It was reported that if the operator exerts too great a force on the wire to pull the basket into the retrieval catheter, it is possible to extrude material through the interstices of the filter resulting in distal embolization.
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