Exemption number e2015012.(b)(4) (importer) is submitting this report on behalf of b.Braun avitum ag (manufacturer).This report has been identified as b.Braun avitum internal report # (b)(4).The trend data was received for evaluation.The analysis of the data record of the dialog+ dialysis machine showed an unobtrusive preparation phase.At the beginning of the therapy a couple of venous and arterial pressure alarms were triggered by the dialog+ machine related to the high blood flow rate (350 ml/min) set by the user.Following these alarms, the dialysis machine switched into patient-safe mode (blood pump stop, venous tube clamp - sakv - closed, bypass).About 37 minutes after the therapy start, the therapy was interrupted by an arterial pressure alarm ("arterial pressure - upper limit") because the arterial pressure increased suddenly from -220 mmhg to +50 mmhg.This pressure increase points to the application of a saline bolus.The blood pressure measurement at that time showed that the patient's blood pressure had dropped from 120/50 mmhg to 77/47 mmhg.This was obviously the time when the patient had collapsed.Shortly thereafter, the blood flow was increased from 350 ml/min to 420 ml/min, another indication that a saline bolus was administered.The blood pump stopped for the rest of the data record 38 minutes after the therapy start.The inspection of the dialog+ dialysis machine by the customer's technician and the analysis of the trend data do not show any product deviation or malfunction.The machine operated as intended.If additional pertinent information becomes available a follow-up report will be filed.
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