Investigation: this patient received the tpe procedure immediately after undergoing a secondary processing device (spd) exchange procedure during which hemolysis also occurred.This event was reported on mdr #1722028-2016-00504.Consequently, it is suspected that the hemolysis that was observed during the spd procedure was still present in the patient at the time they initiated the subsequent tpe procedure.This residual free plasma hemoglobin remaining in circulation from the spd procedure caused the early onset of alarms on the tpe procedure.A review of the device history record (dhr) for this unit showed no irregularities during manufacturing that were relevant to this issue.The run data file (rdf) was analyzed for this event.Signals in the rdf support the reports of hemolysis for this procedure.The rdfs do not point to a conclusive root cause for alarms that signaled possible hemolysis and subsequent hemolysis, however, it is believed that the optia device was operating as intended by alarming and the likelihood of exchange set defect contributing is unlikely.Root cause: the rdf analysis and customer's response indicates that the spectra optia device and spectra optia disposable are not the cause for the hemolysis observed.The root cause for the observed hemolysis in this tpe procedure is related to the spd procedure that occurred immediately before the tpe procedure on the same patient.The rdf analysis indicates that the hemolysis that was observed during the prior spd procedure was still present in the patient at the time they initiated this tpe procedure.
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