During an in-clinic follow-up, muscle stimulation, high pacing impedance, failure to capture were observed on the left ventricular (lv) lead.X-ray imaging was performed and lv lead dislodgement was observed.The event was resolved by explanting and replacing the lv lead.The patient was in stable condition.
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The reported events were lead dislodgement, muscle stimulation, high lead impedance, and failure to capture.As received, a complete lead was returned in one piece.Visual inspection of the lead found no anomalies.The s-curve hump height was measured to be within product specification.The reported events of high lead impedance and failure to capture were not confirmed.Electrical testing did not find any indication of conductor fractures or internal shorts.
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