| Model Number |
N051 |
| Medical Device Problem Codes |
Failure to Capture (1081); High impedance (1291)
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| Health Effect - Clinical Code |
No Known Impact Or Consequence To Patient (2692)
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| Date of Event |
03/01/2018
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Type of Reportable Event
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Serious Injury
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Event or Problem Description
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It was reported that this cardiac resynchronization therapy defibrillator (crt-d) system exhibited loss of capture and high out of range pacing impedance measurements on the left ventricular (lv) lead, measuring greater than 2000 ohms.The patient didn't experienced asystole.A fracture was suspected due to the impedances, however, a fracture was not visualized on fluoroscopy.The lv lead was surgically abandoned and replaced.The crt-d was explanted and replaced.No additional adverse patient effects were reported.
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Additional Manufacturer Narrative
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Upon receipt at our post market quality assurance laboratory, a thorough evaluation of the device was performed.A visual inspection of the device header and case noted no anomalies.Pin gauge testing, designed to verify proper port dimensions, was completed.Each port measured as expected.The device was then exposed to simulated heart load conditions, and the defibrillation, pacing, and sensing functions were tested.Impedance testing was completed and all measurements were within normal limits.The device operated appropriately with no interruptions in therapy output at the returned programmed settings.A series of electrical tests was also performed, and again, normal device function was observed.Analysis did not identify any device characteristics that would have caused or contributed to the reported loss of capture and high pacing impedances.
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Event or Problem Description
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This supplemental report is being filed as the device evaluation was completed.
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Search Alerts/Recalls
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