MAUDE Adverse Event Report: SIEMENS HEALTHCARE DIAGNOSTICS PRODUCT GMBH COAGULATION FACTOR IX DEFICIENT PLASMA

Model Number COAGULATION FACTOR IX DEFICIENT PLASMA

Device Problem High Test Results (2457)

Patient Problem No Known Impact Or Consequence To Patient (2692)

Event Date 11/01/2017

Event Type  malfunction  

Manufacturer Narrative

The customer contacted a siemens customer care center (ccc) and reported that discordant, falsely elevated coagulation factor ix deficient plasma (fix) results were obtained on 4 samples from the same patient on the bcs xp system.There was no indication of a system malfunction and there were no reports of hardware errors when the discordant results were obtained on the patient samples.Quality controls were within expected ranges.Siemens is investigating the issue.Mdr 9610806-2018-00094 and mdr 9610806-2018-00095 were filed for the discordant results obtained on (b)(6) 2017 for the same issue.Mdr 9610806-2018-00097 and mdr 9610806-2018-00098 were filed for discordant results obtained on samples from the same patient on (b)(6) 2018 and (b)(6) 2018, for the same issue.

Event Description

Discordant, falsely elevated coagulation factor ix (factor ix) results were obtained on a patient sample on a bcs xp instrument, using the coagulation factor ix deficient plasma reagent.The sample was repeated using a non-siemens methodology, resulting lower.On (b)(6) 2017, the sample was repeated using the initial reagent lot, resulting in discordant, falsely elevated factor ix results.The patient blood was redrawn and the new sample was run multiple times, using the same reagent lot on (b)(6) 2017 and (b)(6) 2017, resulting in other discordant, falsely elevated factor ix results.The redrawn sample was also repeated using a non-siemens methodology, resulting lower.The customer indicated that some of the results determined by the coagulation factor ix deficient plasma reagent were reported to the physician(s), who questioned the results.The customer also stated that correct results were reported to the physician(s).There are no known reports of patient intervention or adverse health consequences due to the discordant, falsely elevated factor ix results.

Manufacturer Narrative

Additional information (20-september-2018): the customer clarified that the results obtained on (b)(6) 2017 were used for troubleshooting purposes.Siemens determined that the instruments and reagents used within the different tests and quality controls (qcs) were acceptable.Siemens determined that the genetic disorder of the patient potentially contributed to the tests to react differently.Corrected information (21-september-2018): the affected factor ix (fix) lot is 504122b.The year was revised for sample id (b)(6)."(b)(6) 20117" was corrected to "(b)(6) 2017".The reagent and instrument are performing according to specifications.No further evaluation of this device is required.Mdrs 9610806-2018-00094_s1, 9610806-2018-00095_s1, 9610806-2018-00097_s1, and 9610806-2018-00098_s1 were filed for the same event.

Manufacturer Narrative

Additional information (24-october-2018): on 24-oct-2018, siemens was notified that customer reported the event to the fda.The customer also indicated that the patient has history of bleeding after hypospadias repair and a tonsillectomy at age (b)(6).The report filed by the customer indicates that the event date was for (b)(6) 2017, however the results correspond to the data dated (b)(6) 2018 in the initial mdr, in which was reported to siemens by the customer.Mdrs 9610806-2018-00094_s2, 9610806-2018-00095_s2, 9610806-2018-00097_s2, and 9610806-2018-00098_s2 were filed for the same event.

• Brand Name: COAGULATION FACTOR IX DEFICIENT PLASMA
• Type of Device: COAGULATION FACTOR IX DEFICIENT PLASMA
• Manufacturer (Section D): SIEMENS HEALTHCARE DIAGNOSTICS PRODUCT GMBH; emil-von-behring-str 76; marburg, D-350 41; GM D-35041
• MDR Report Key: 7890948
• MDR Text Key: 120833390
• Report Number: 9610806-2018-00096
• Device Sequence Number: 1
• Product Code: GJT
• UDI-Device Identifier: 00842768011023
• UDI-Public: 00842768011023
• Combination Product (y/n): N
• PMA/PMN Number: K924396
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: health professional,user faci
• Type of Report: Initial,Followup,Followup
• Report Date: 11/09/2018

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 09/19/2018
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Expiration Date: 10/12/2018
• Device Model Number: COAGULATION FACTOR IX DEFICIENT PLASMA
• Device Lot Number: 504122B
• Was Device Available for Evaluation?: No
• Date Manufacturer Received: 10/24/2018
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1
• Patient Age: 16 YR