Nathan Waxer, DO
Cerebral Oximetry
Emerging Applications For an Established Technology
Frost, Elizabeth A.M. M.D. Anesthesiology News April 2012
Summary:
Cerebral Oximetry has been studied for more than 30 years and been
commercially available for greater than 2 decades. Cerebral oximetry
is derived from both venous and arterial blood and thus values fall
between the two (60-80%).
Cerebral oximetry, however, has only been recently used to investigate
changes in oxygen delivery to the brain and may have use in "first
alert" monitoring of impending organ dysfunction.
The brain may be an index organ for how well the vital organs of the
body are perfused. If we are able to monitor the oxygenation of the
brain, it could then be used to infer the perfusion of other vital
organs. Cerebral oximetry may be a useful technique for predicting
mortality from cardiac arrest, demonstrating a correlation between
cardiac function and perfusion to the brain. Also cerebral oximetry a
documented decrease in rSO2 directly after a procedure that could
affect the perfusion to the brain could help prove that a neurologic
deficit was not related to anesthesia.
Frost, Elizabeth A.M. M.D. Anesthesiology News April 2012
Summary:
Cerebral Oximetry has been studied for more than 30 years and been
commercially available for greater than 2 decades. Cerebral oximetry
is derived from both venous and arterial blood and thus values fall
between the two (60-80%).
Cerebral oximetry, however, has only been recently used to investigate
changes in oxygen delivery to the brain and may have use in "first
alert" monitoring of impending organ dysfunction.
The brain may be an index organ for how well the vital organs of the
body are perfused. If we are able to monitor the oxygenation of the
brain, it could then be used to infer the perfusion of other vital
organs. Cerebral oximetry may be a useful technique for predicting
mortality from cardiac arrest, demonstrating a correlation between
cardiac function and perfusion to the brain. Also cerebral oximetry a
documented decrease in rSO2 directly after a procedure that could
affect the perfusion to the brain could help prove that a neurologic
deficit was not related to anesthesia.
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