Dräger Zeus Infinity Empowered - Anesthesia Effect Monitoring

Monitoring
238
Instructions for use Zeus Infinity Empowered SW 2.n
Zeus IE calculates the following hemodynamic pa-
rameters with the indicated units of measurement:
Anesthesia effect monitoring
Anesthesia effect monitoring is suitable for adults
and pediatric patients at least 1 year of age.
Connect the anesthesia effect monitoring acces-
sory to the Aux/Hemo 2/3 connector:
– InfinityTrident SmartPod for neuromuscular
monitoring is based on the electrical stimulation
of peripheral nerves and measures the me-
chanical response of the associated group of
muscles. The NMT parameter (neuromuscular
transmission/muscular blockade) indicates the
patient's muscle relaxation.
– Infinity BISx SmartPod for measuring seda-
tion effects is based on BIS-XP technology. The
BISx parameter (bispectral index) indicates the
effects of sedation on the brain.
Neuromuscular Transmission Monitor-
ing (NMT)
The pulses are sent via two stimulation electrodes
over the nervus ulnaris. The NMT sensor consists
of an accelerometer (acceleration measuring trans-
ducer) and measures muscle response (muscular
blockade) to the pulses. Skin temperature is also
measured using a temperature sensor.
At the start of measurement, the non-relaxed pa-
tient is exposed to test pulses in order to determine
the supramaximal current. At the determined su-
pramaximal current, 4 pulses are applied in order to
determine a reference measure for the muscle re-
sponse for a non-relaxed patient.
Operating modes: TOF, Single, PTC
Single Twitch
A single pulse is applied. The response of the pulse
is compared to the reference pulse.
TOF
Train of Four – A series of 4 pulses is applied. The
number of stimuli answered or the ratio of the first
response to the fourth one indicate the degree of
muscle relaxation.
PTC
Post Tetanic Count
A 50 Hz signal is applied for 5 seconds. After a
pause of 5 seconds, up to 20 1 Hz signals occur.
The number displayed indicates the responses
counted. Only perform on a patient under sufficient
sedation!
Parameter Designation
BSA Body surface area [m
2
]
CI Intermittent cardiac index [L/min/m
2
]
LVSWI Left ventricular stroke work index
[g x m/m
2
]
RVSWI Right ventricular stroke work index
[g x m/m
2
]
PVR Pulmonary vascular resistance in-
dex [dynes x sec./cm
–5
]
PVRI Pulmonary vascular resistance in-
dex [dynes x sec./cm
–5
/m
2
]
SV Stroke volume [mL]
SVI Stroke volume index [mL/m
2
]
SVR Systemic vascular resistance
[dyn x sec./cm
–5
]
SVRI Systemic vascular resistance index
[dyn x sec./cm
–5
/m
2
]