It was reported that during a peripheral orbital atherectomy procedure, a csi orbital atherectomy device (oad) would not shut off and the saline infusion pump had to be manually unplugged from the wall.Additionally, a dissection occurred in the superficial femoral artery (sfa).The target lesion was severely calcified, 90% stenotic and 15mm in length.It was located in the proximal sfa which had a reference vessel diameter of 5mm.The physician used a 6fr introducer sheath to access the lesion.A csi viperwire guidewire was advanced across the lesion and the oad was loaded onto it.The physician performed two successful runs at medium.During the third run at medium speed, the device bogged down, but atherectomy was continued.During the fourth run, the device made an unusual sound.When the physician attempted to turn off the oad, the power button was unresponsive.The saline infusion pump was unplugged from the wall.Post-atherectomy angiography revealed a dissection in the sfa.The physician resolved the dissection by deploying two stents.The patient status remained stable throughout the procedure.Three requests for additional information have been made, but none has yet been received.The device has also been requested for analysis, but is awaiting facility analysis and confirmation that csi will be able to obtain the device for analysis.
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