Trigger Control Key Functions - Arrow AutoCAT 2 Series Operating Manual

Trigger Control Key Functions

Control Key
[PATTERN]
PEAK
AFIB
VPACE
APACE
AP
INT
3 . 3 : C o n t r o l K e y s a n d F u n c t i o n K e y s
Description
Uses the ECG QR slope, amplitude and width (25-135ms) to define
triggers; the most precise ECG trigger, PATTERN is frequently used
for patients with routine QRS complexes; may be used with demand
pacing.
AutoPilot ™ mode: Default trigger. Selected when the HR is < 130 bpm
and no arrhythmia is present.
Uses the ECG QR slope and amplitude to define triggers; generally used
for patients with wide or varying QRS complexes; may be used with
demand pacing and may be preferred for HR > 140 bpm.
AutoPilot ™ mode: Selected during several conditions. These include HR
> 130 bpm and presence of arrhythmia when Arrhythmia timing is OFF.
Defines inflation triggers based on PEAK mode, and triggers deflation
when the slope of the R-wave begins to rise; generally used for patients
with atrial fibrillation, irregular rhythms and tachyarrhythmias
(operator cannot adjust deflation point in this mode). Also selected for
Real Time Timing. Rejects pacer spikes.
AutoPilot mode: Selected when an arrhythmia is detected and the
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Arrhythmia timing is ON, or when R-Wave Deflation is ON.
Uses ventricular pacing spike to define triggers; may only be used for
patients with 100% Ventricular or Atrio-Ventricular paced ECG
rhythms (A/V interval must be set at 250ms or less).
AutoPilot mode: Selected when ECG and AP signals are not available
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and single or dual pacer spikes are detected. The dual pacer spikes
must be within 250 msec of each other to be detected as a pair.
Uses the atrial pacing spike to define triggers; may only be used for patients
with 100% Atrial pacing.
AutoPilot ™ mode: Selected when an ECG or AP is present but not stable
and the pacer is more than 100 msec before the R wave on the ECG. When
the ECG or AP signals are stable, the pump will select an ECG or AP
trigger mode.
Uses rising slope of AP waveform (with blanking for the balloon)
to define triggers; may be used when changing electrodes; for patients
with 100% pacing: or when interference prevents use of ECG triggers;
this mode should not be used for patients with A Fib or
tachyarrhythmias.
AutoPilot mode: Selected when ECG is noisy or not available.
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Rate is set by the operator and external patient signals are ignored;
this selection automatically changes RATIO to 1:1. Preset Rate is 80
BPM. The multi-function keys change when internal trigger is selected
to allow internal rate to be changed.
AutoPilot mode: Not available.
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The internal trigger mode should only be used if the patient has no
myocardial activity and/or ventricular ejection. You must select
Operator mode, then Trigger mode and INTERNAL twice to select this
trigger mode. An audible alert will sound when a valid ECG is present
and INTERNAL mode is selected. Evaluate the ECG and AP signals
and select an ECG or AP based trigger as soon as possible.
3 . P r i n c i p l e s o f O p e r a t i o n
Trigger Detection Criteria
3-23