| Model Number |
S204 |
| Medical Device Problem Code |
Low impedance (2285)
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| Health Effect - Clinical Code |
No Consequences Or Impact To Patient (2199)
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| Date of Event |
08/30/2012
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Type of Reportable Event
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Serious Injury
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Additional Manufacturer Narrative
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The device has been returned for analysis.This report will be updated upon completion of analysis.
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Event or Problem Description
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Boston scientific received information that this pacemaker exhibited low right ventricular (rv) impedance measurements.The impedances were not out of range, were stable, and the patient was observed at that time.The impedance measurements were 200 ohms and had been stable but chronically low, and was later noted to have depleted the battery of this pacemaker.A surgical revision was performed to replace the device due to normal battery depletion.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.The device was then exposed to simulated heart load conditions, and the 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 clinical observations.
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Search Alerts/Recalls
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