Model Number L101 |
Device Problems
High impedance (1291); Connection Problem (2900)
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Patient Problem
No Clinical Signs, Symptoms or Conditions (4582)
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Event Date 02/16/2024 |
Event Type
malfunction
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Event Description
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It was reported that this pacemaker, implanted with another manufacturer's right ventricular (rv) lead, triggered a lead safety switch (lss) due to a high out-of-range pace impedance measurement greater than 2,000 ohms, and it was suspected to have been attributed to the device header to lead spring contact connection.It was noted that the patient was pacer dependent, however there was no evidence of noise on the presenting or stored electrograms (egms).Technical services (ts) reviewed troubleshooting options and programming considerations.This pacemaker system remains in service.No adverse patient effects were reported.
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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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Manufacturer Narrative
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This product has not been returned to boston scientific, and as a result, laboratory analysis could not be conducted.The associated investigation determined that this device exhibited intermittent impedance measurements with no conclusive evidence of a product performance issue or inadequate lead-to-device connection; please refer to the description for more information regarding the specific circumstances of this event.Investigation has determined that this type of event is likely the result of an intermittent high impedance condition associated with the device spring contact and lead terminal ring.A design enhancement was implemented in 2020 to stabilize the electrical connection between the spring contact and the lead terminal.
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Event Description
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It was reported that this pacemaker, implanted with another manufacturer's right ventricular (rv) lead, triggered a lead safety switch (lss) due to a high out-of-range pace impedance measurement greater than 2,000 ohms, and it was suspected to have been attributed to the device header to lead spring contact connection.It was noted that the patient was pacer dependent, however there was no evidence of noise on the presenting or stored electrograms (egms).Technical services (ts) reviewed troubleshooting options and programming considerations.This pacemaker system remains in service.No adverse patient effects were reported.
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Search Alerts/Recalls
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