Telemetry at emergency department documented episodes of ventricular pacing output with loss of capture, associated with patient's clinical symptoms of feeling hot and flushed with lightheadedness and dizziness.One impedance measurement elevated at over 3000 ohms in both bipolar and unipolar mode.He likely has a an early conductor coil fracture of both coils of his coaxial ventricular lead with intermittent loss of pacing output.Right atrial lead and battery function normal.Left ventricular lead programmed to unipolar pacing and bipolar sensing.Temporary active-fixation pacing lead placed yesterday.Telemetry shows 2 episodes overnight of loss of capture of the permanent pacing lead with subsequent backup pacing at 50 bpm by the temporary lead.Plan for placement of new rv lead tomorrow.Fda safety report id # (b)(4).
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