It was reported that the patient presented for leadless pacemaker (lp) implant.During the procedure, it was noted that there was difficulty in positioning and fixing the lp.The pacing impedance was noted to decrease.Post-implant, capture failure and far r-wave over-sensing was noted.X-ray confirmed the lp had dislodged.The lp was explanted and replaced.The patient was stable.
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The reported event of dislodgement, failure to capture, difficult or delayed positioning, low impedance, and over sensing were not confirmed.Final analysis found no anomalies on the helix and the helix length no anomalies contributing to reported event of impedance, capture, or sensing problem.No issues were detected.
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