The unit has not been returned for investigation and we are therefore unable to determine the root cause of the hypotensive event at this time.Several attempts have been made to contact the customer; however, as of the date of this report, no additional information has been provided.Therefore, belmont requested an independent medical doctor review of the initial report from the user facility.The medical review does not concur with the customer's conclusion based on the facts provided.Without additional information, it is difficult to determine what occurred in this incident.It was reported that the patient recovered and was discharged.Should additional information become available, a supplemental report will be submitted accordingly.
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The report from the user facility stated: "a (b)(6) female patient was undergoing an extensive spinal surgery.Approximately 2 1/2 hours after a blood transfusion, the patient became profoundly hypotensive (40/20).The patient responded to resuscitation but then became hypotensive again.The spinal surgery was aborted.An echocardiogram demonstrated profound vasodilation consistent with anaphylactic transfusion reaction.This is the fourth occurrence of this at this facility.All four cases involved the belmont fluid management system.Anecdotally, this reaction does not appear to occur with regular tubing.The patient was diagnosed with distributive shock.It could not be determined if the distributive shock was neurogenic (due to the spinal surgery) versus anaphylactic.The other two causes (septic and adrenal crisis) of distributive shock were ruled out.The patient recovered and was discharged.".
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