This event happend in france, according to fda requirements a medwatch is opened to inform the us authorities.This case has been referenced in a communication with (b)(6), phd on (b)(6) 2023 as per mdr 3014527920-2023-00001.Summary of the event: on the post-electrode removal scan, the surgeons noticed that there was still a radio-opaque element in the cranial cavity in the path of one of the electrodes.The patient had to be re-operated and a foreign body was removed.After analysis, it turned out to be the sheath of the coagulation probe used to coagulate the dura mater, which had become detached during the implantation procedure.A materiovigilance declaration was made to ansm.
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