BOSTON SCIENTIFIC CORPORATION ACCOLADE MRI DR; IMPLANTABLE PULSE GENERATOR, PACEMAKER (NON-CRT)
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Model Number L311 |
Device Problems
Incorrect, Inadequate or Imprecise Result or Readings (1535); Inappropriate or Unexpected Reset (2959)
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Patient Problem
Dizziness (2194)
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Event Date 06/05/2023 |
Event Type
Injury
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Manufacturer Narrative
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If pertinent information is provided in the future, a supplemental report will be submitted.
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Event Description
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It was reported that this pacemaker had entered safety mode, and upon interrogation the following codes were observed: 0x40 0x0 0x0.The patient experienced dizziness, however it was unclear whether it device-related as the patient had experienced non-device-related dizziness in the past.It was noted that the patient was pacer dependent.Subsequently this pacemaker was explanted and replaced.No additional adverse patient effects were reported.
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Manufacturer Narrative
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Upon receipt at our post market quality assurance laboratory, this device was thoroughly inspected and analyzed.Device telemtry data confirmed it was operating in safety mode, it had undergone resets, and bradycardia therapy remained available.Engineers determined that this device was demonstrating behavior consistent with a high internal cell impedance within the battery.The high internal impedance put this device at risk of experiencing transient voltage decreases (and associated resets) during periods of high-power consumption.When battery voltage drops below a minimum threshold, a system reset is performed.If three system resets occur within a 48-hour period, the device is designed to immediately enter safety mode operation to maintain back-up pacing with pre-defined, non-programmable settings.
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Event Description
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It was reported that this pacemaker had entered safety mode, and upon interrogation the following codes were observed: 0x40 0x0 0x0.The patient experienced dizziness, however it was unclear whether it device-related as the patient had experienced non-device-related dizziness in the past.It was noted that the patient was pacer dependent.Subsequently this pacemaker was explanted and replaced.No additional adverse patient effects were reported.
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Search Alerts/Recalls
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