The LICOX System - La Jolla Neurosurgical Associates AMC

22 Pages·2007·3.84 MB·English

®
The LICOX
System
Brain Tissue Oxygen
Monitoring System
Product Presentation
NS1581-09/07
What is the LICOX® system?
• Measures interstitial brain
tissue oxygenation (P O ) in
bt 2
mmHg and brain
temperature (°C)
• Probe inserted
approximately 35mm below
the dura into the white
matter of the brain
• P O used in conjunction
bt 2
with current ICP/CPP
monitoring methods
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Who needs the LICOX® system?
(cid:1)
Patients at risk for
developing cerebral
hypoxia or ischemia
(cid:1)
Head trauma patients
(cid:1)
Aneurysm patients
(cid:1)
Subarachnoid
hemorrhage patients
(cid:1)
Stroke patients
© 2007 Dr. Marcos Tatagiba. Reprinted with permission.
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When is the LICOX® system placed?
• Within the first 24-48
hours of injury
– The sooner cerebral
hypoxia is detected, the
better secondary injury
can be prevented
• Generally, when an ICP
catheter is required, a
LICOX® probe should
be considered
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How is the LICOX® system placed?
• Can be either bolted or tunneled
• Can be placed independently or
with an ICP catheter
• Requires minimal additional
effort
• Does not need to be zeroed prior
to placement, SMART card is
included with each O probe
2
with all calibration data
• Monitor need not be present
when placing in the OR
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Where is the LICOX® system placed?
• Placement is up to
• LICOX® probe can be
clinical discretion
placed in either the injured
side or non-injured side of
• The idea is to prevent brain
SECONDARY injury
by ensuring living
• Should not be placed
tissue is receiving
directly into a lesion
adequate oxygen
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What are the probe options?
• BOLTED
(cid:1)
Double Lumen – Camino® ICP
channel and LICOX® PMO
catheter channel (IP2P)
• TUNNELED
(cid:1)
Licox® PMO combined oxygen
and temperature catheter (IT2)
• Probe kits come with
required drill bits and other
accessories
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How accurate are the probes?
Oxygen Accuracy:
(cid:1)
P O 0-20 mmHg accuracy is ± 2 mmHg
bt 2
(cid:1)
P O 21-50 mmHg accuracy is ± 10%
bt 2
(cid:1)
P O 51-150 mmHg accuracy is ± 13%
bt 2
Temperature Accuracy: ± 0.2 °C
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What about the nursing staff?
• Simple monitor set-up
and use
• The monitor displays
a digital oxygen and
temperature reading
• Alarms are managed
through a connection
to the bedside monitor
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What is a “normal” reading?
• Normal: 25-35 mmHg
• Risk of death increases
– < 15 mmHg for 30 minutes
– < 10 mmHg for 10 minutes
• P O < 5 mmHg
bt 2
– high mortality
• P O < 2mmHg - neuronal death1
bt 2
1- Bardt T, Unterberg A, et al. Monitoring of brain tissue PO2 in traumatic brain injury: effect of
cerebral hypoxia on outcome. Acta Neurochirurgica.1998;71(Suppl):153-156.
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