Related manufacturer reference number:2017865-2023-51436.It was reported that the patient presented in clinic for a follow-up.Upon review it was discovered that the right ventricular lead exhibited high capture thresholds, a drop in sensing, and was dislodged.It was noted that the right ventricular lead and the atrial lead both looked bent at the header due to access placement and pulled back.Both leads were explanted and replaced.The patient was in stable condition.
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The reported events were dislodgement, bent header, inadequate capture, and r-wave amp variation.As received, a complete lead was returned in one piece for analysis.The reported events of bent header, inadequate capture, and r-wave amp variation were not confirmed.Visual inspection of the lead found the helix to be retracted and clogged with blood/tissue.X-ray examination found no anomalies to the lead body.Electrical testing did not find any indication of conductor fractures or internal shorts.The helix and the inner coil were damaged during performing the helix mechanism/extension length test.
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