This report is being filed to provide additional information in evaluation codes and additional mfr narrative.Investigation: the customer did not provide the lot number pertaining to this event,therefore a device history record (dhr) search could not be conducted for this specific incident.All lots must meet acceptance criteria before release.Further evaluation of this event has determined that the device did not cause or contribute to a death or serious injury, nor is there a likely potential for death or serious injury associated with this event based on additional investigational information.During customer follow-up, customer stated that the patient (donor) was given first aid for the vasovagal reaction.Therefore, medical intervention beyond first aid was not required for this event.Per the therapeutic apheresis handbook: a physician's reference, 2nd edition, first time procedure patients reactions may occur in approximately 4.8% of procedures, based on the results of a survey of therapeutic procedures.Of these reactions, most were mild and well tolerated.The trima accel system has many safety features.However a donor reaction can occur rapidly.Therefore, it is imperative that the trima accel system and the donor be monitored throughout the procedure.Root cause: due to insufficient data about the outcome of the procedure, a definitive root cause could not be determined.Possible causes include but are not limited to:- donor/patient physiology- donor/patient's apprehension about apheresis procedure (nervousness)- machine settings, ac infusion rate too fast for the donor/patient.
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