Cardiac stimulator 4427 Easypace - Instructions for use
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CAUTION !
It is indispensable to check the efficacy of the stimulation and the correct
setting of pace and sense parameters by means of an ECG monitor.
In case of prolonged use of the stimulator, doctor should check periodically
the device, to assess the constant correctness of these parameters.
9.4. EMERGENCY mode
It is possible to generate an immediately asynchronous stimulation (both during
synchronous mode and in STAND-BY mode), set up with safe parameters (rate: 72 ppm;
amplitude: 20 mA), pressing the EMERGENCY key at any moment.
This key is provided for safety reasons and for allowing the physician to carry out rapid
and safe stimulation in the case of an emergency. The amplitude of 20 mA, which is more
than sufficient in the event of endocavitary stimulation, may not be sufficient in the case of
epimiocardiac stimulation, in cases with a particularly high threshold. By using the specific
key mA the value may however be increased until a stable harnessing value is obtained.
The operating mode is an asynchronous V00 (as indicated on the display), it is possible to
stop the stimulation by pressing (for 1
÷
2 seconds) STAND-BY, then to shift the
synchronous stimulation by pressing VVI and to adjust the parameters without interrupting
the stimulation itself.
Also in this case the display will be turned off after 20 seconds from the last pressure of a
key.
9.5. AUTO mode
The operating mode “pacing”, which is activated by pressing key AUTO, is the
synchronous VVI but, in this case, a preventive setting of all the necessary parameters is
not necessary, as this is accomplished by the stimulator itself.
The key AUTO is active only in the STAND-BY mode and has no effect when pressed in
the V00 mode.
The algorithm for the automatic setting of sense and pace parameters generates the
following sequence:
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