Medtronic (covidien) received information that during the treatment of fusiform, unruptured, right middle cerebral artery (mca) m1 segment aneurysm with a pipeline embolization device (ped), the ped failed to open completely.It was reported that the aneurysm neck length was 15mm and the ped landing zone was at distal m1 segment of the mca artery.It was reported that the proximal end of the pipeline did not open completely and it remained in a cone shape.Many attempts were made to open the device.The physician tried passing a micro catheter across the device to open the pipeline with a balloon, this was unsuccessful.Then the physician used a snare to try to remove the device, but this attempt was also unsuccessful.The device was implanted and the patient was not injured.Post procedure, patient was put on low dose of aspirin and ticagrelor.
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