Boston scientific received information that pacing was not being delivered when required, on the left ventricular (lv) lead, connected to this cardiac resynchronization therapy pacemaker (crt-p).Pacing thresholds were greater than 6 volts in 2 different pacing configurations.It was found that pacing impedance had measured greater than 2000 ohms.The physician elected to turn off the lv lead and temporarily program the crt-p to a lower rate of 50 paces per minute, to reduce the amount of ventricular pacing.The plan is to replace the lead, at some point.No adverse patient effects were reported.
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