Fukuda Denshi DSL-8001, Operation Manual

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Precautions about the Pacemaker
WARNING
 Minute ventilation rate-adaptive implantable pacemakers can
occasionally interact with certain cardiac monitoring and
diagnostic equipment, causing the pacemakers to pace at
their maximum programmed rate. The cardiac monitoring
and diagnostic equipment may possibly send wrong
information.
If such event occurs, please disconnect the cardiac
monitoring and diagnostic equipment, or follow the
procedures described in the operation manual of the
pacemaker.
For more details, contact FUKUDA DENSHI personnel, your
institution’s professionals, or your pacemaker distributors.
 Rate meters may continue to count the pacemaker rate
during occurrences of cardiac arrest or some arrhythmias.
Do not rely entirely upon rate meter alarms. Keep pacemaker
patients under close surveillance. See this manual for
disclosure of the pacemaker pulse rejection capability of this
equipment.
See “Minute Ventilation Rate-Adaptive Pacemakers”
FDA alerts health professionals that minute ventilation
rate-adaptive implantable pacemakers can
occasionally interact with certain cardiac monitoring
and diagnostic equipment, causing pacemakers to
pace at their maximum programmed rate.
CAUTION
 There are some cases when the pacemaker pulse can not be
detected depending on the pacemaker type, pulse voltage,
pulse width, electrode lead type (unipolar, bipolar), or
electrode placement which causes the pacemaker pulse
amplitude to decrease and disables the pacemaker pulse
detection.
 If signals similar to a pacemaker pulse are present, such as
electric blanket noise or excessive AC frequency noise, these
may be erroneously detected and displayed as a pacemaker
pulse.
 When a spontaneous QRS overlaps pacemaker pulse (e.g.
fusion beat, etc.), the heart rate will decrease because QRS
detection cannot be properly performed.

If a pacemaker pulse is continuously detected due to AC
frequency interference, QRS detection will be suspended
and the heart rate will be reduced.