An outside the us customer observed a depressed atellica im high-sensitivity troponin i (tnih) result from a sample that was considered discordant on comparison with the other results from the same sample.Interpretation of results of the instructions for use (ifu) states the following: " results of this assay should always be interpreted in conjunction with the patient's medical history, clinical presentation, and other findings." siemens is investigating.
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The initial mdr 1219913-2022-00022 was filed on january 25, 2022.The initial mdr incorrectly referenced lot #550 and expiration date (october 1, 2022) in section d4.Section d4 of this report has been updated with the correct lot # 064 and expiration date as november 18, 2022.Additional information - march 09, 2022.An outside the us customer observed discordant results from atellica im high-sensitivity troponin i (tnih) assay with a sample from the patient compared to the repeat results on (b)(6), 2021.Siemens reviewed the available information to determine probable cause and evaluate for potential product issue.Initial and repeat results are > ifu 99th% cutoff of 45 ng/l.Sample handling and qc information is not available.A customer service engineer (cse) inspected sample probe, reagent probe and wash station.No issues were identified.A field service engineer (fse) performed preventive maintenance on this instrument on (b)(6), 2022.Auto check data was no longer available for the month of december.However, current auto check data looks healthy (lumo base check & wash / aspiration).Siemens cannot rule out a system issue and /or preanalytical issues as the cause.No potential product issue is observed.The customer is operational.No further action is required.Section d4 was updated.Section h4 was updated to add the date of manufacture as september 17, 2021.In section h6, investigation findings and investigation conclusion codes were updated based on the investigation results.
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