Berlin Heart EXCOR Pediatric VAD, Manual, Page: 115 / 250

Chapter 7 Commissioning the Ikus and setting parameters
INSTRUCTION
1. Use the <
←
> / <
→
> keys to move the cursor to the field showing the current
operating mode. A pop-up menu showing the available operating modes is
opened (see Tab. 7-3, page 101).
2. Select the desired operating mode with <
↓
> , <
↑
> and confirm with <Enter> .
The system will now work in the selected mode.
Guideline values
The most important criteria when selecting drive parameters is that they ensure a
good filling and emptying of the pump; the parameters must be set to achieve this
goal.
NOTICE
The systolic driving pressure must be higher than the patient’s physi­
cal systolic pressure. IMPORTANT: If the systolic duration (% systole)
is reduced or if very small cannulae are used, it may be necessary in
some cases to select a higher value than recommended here.
The actual driving pressures achieved are influenced by the diameter
of the cannulae used.
The following values are merely guideline values; they may not be
appropriate in each individual case
Systolic
pressure
[mmHg], left/
right Diastolic
pressure
[mmHg], left/
right Rate [bpm] Rel. systolic
duration [%],
left/ right
220/150 -40/-40 80 40/40
Tab. 7-6 Recommended guideline values for normal operation
ADVICE
Remove the de-airing needle after all air has been removed from the
blood pump, the blood pump is running and the parameters have been
adjusted (see section 7.2.10: Checking the parameters when the pump
is started and adjusting them, page 103 and section 9.10: Removing
the de-airing needle, page 130).
IMPORTANT: Once the de-airing needle has been removed it cannot
be re-inserted.
7.2.11 Switching from CPB support to VAD support
The aim here is to reduce the CPB flow and in doing so to shift the volume from the
CPB to the patient (i.e. to the VAD)
WARNING
Secure the driving tubes and cannulae to the blood pump(s) as soon as
the proper function of the EXCOR is established (see section 9.11:
Securing the connections, page 130).
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