Clinical investigation: a temporal relationship exists between hd therapy utilizing the 2008t hemodialysis system, and the adverse event of cardiac arrest.The definitive cause of the patient¿s adverse event(s) is unknown; therefore, causality cannot firmly be established.Given the patient¿s identity remains unknown, an inability to obtain additional information precluded a more comprehensive investigation.Based on the totality of the information available, the 2008 hemodialysis system cannot be excluded from having a possible causal and/or contributory role in the serious adverse events.At this time, there is no allegation or objective evidence indicating a fresenius device(s) and/or product(s) deficiency or malfunction occurred.However, given the patient was reportedly undergoing hd therapy when the events began and the lack of additional information (e.G., treatment record, hospital records, timeline, patient demographics); his clinical investigation cannot disassociate the device from the serious adverse events.Plant investigation: the device was not returned to the manufacturer for physical evaluation and the serial number could not be obtained.As a serial number could not be determined, device history and manufacturing records could not be reviewed.As a physical evaluation could not be performed, a definitive conclusion regarding the reported incident could not be reached and a cause could not be confirmed.Should additional relevant information become available, a supplemental report will be submitted. .
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