7
Electrocautery
•
Defibrillation
•
Interference
•
resistance
Electrocautery should definitely not be performed at a
distance less than 15 cm from the leads, as it is possible
that ventricular fibrillation will be induced or the pace-
maker could be damaged.
The pacemaker should be set to asynchronous pacing to
avoid pacemaker inhibition due to interference signals.
During treatment, the peripheral pulse of the patient
should be continuously monitored. After treatment, the
pacemaker function must be inspected.
The circuitry of Reocor S is protected from the shock
energy that can be induced by a defibrillation. Nonethe-
less, the following precautionary measures should be
taken, if possible:
— The set energy should not be higher than necessary
for defibrillation.
— The distance between the leads of the cardiac defi-
brillator and the leads of Reocor S should be at least
10 cm.
— After a defibrillation, Reocor S must be switched off
and then on again so that the device can perform a
complete self-test.
Additionally, after defibrillation the pacemaker function
and pacing threshold must be checked and monitored for
a sufficient period of time.
Reocor S is protected against interference due to electro-
magnetic radiation, electrostatic discharge and trans-
ferred interference. The radiation emitted by Reocor S
has also been minimized. Thus, the device meets the
requirements of IEC 60601-1-2. However, it is still possi-
ble that strong electromagnetic fields, which can occur
(e.g., in the direct vicinity of electric motors, transform-
ers, power lines and other electric devices), may impair
the function of Reocor S.
Electromagnetic interference can lead to the following
errors:
— Unexpected reset (self-test is executed).
— Cardiac events are sensed but do not appear on the
ECG monitor.
— Reocor S exhibits unexpected behavior.
Measures to restore proper function of Reocor S:
— Check the connection between device and temporary
pacing leads and adjust, if necessary.
— Correctly adjust the sensitivity of the Reocor S: Often,
the sensitivity safety margin is half the average
intrinsic signal amplitude.