It was reported that a patient underwent a right sided atrial flutter procedure with a carto® 3 system and a map shift without error message occurred.Error 8 ¿stimulation routing is disabled¿ displayed on the carto® 3 system.The pacing leads were connected to the carto® 3 patient interface unit (piu) primary pacing port.A bloom stimulator was used during the procedure.The pacing was for planned pacing and no pacing was delivered.Everything was blacked out on the carto® 3 including no mapping or fast anatomical mapping available.All catheters and cables were removed and the piu was rebooted.The error was resolved after reboot and after reconnecting all catheters, the error did not return and the case continued.Then, while mapping, there was a map shift with no error message or patient movement.The map shift was confirmed by the physician using fluoroscopy and looking at the map created with carto® 3.The measured map shift distance was 16.9mm; the carto was used to measure the difference.There was no prior cardioversion and the patient was fully sedated prior to procedure.The pacing error is not mdr reportable because the potential that this issue could cause or contribute to a death or serious deterioration in the patient¿s state of health is remote.The map shift is mdr reportable because map shifts could potentially be caused by system malfunction, and there is a potential risk to patient.
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