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2014 ; 28
(4
): 429-39
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Cerebral and tissue oximetry
#MMPMID25480772
Steppan J
; Hogue CW Jr
Best Pract Res Clin Anaesthesiol
2014[Dec]; 28
(4
): 429-39
PMID25480772
show ga
The use of near-infrared spectroscopy (NIRS) has been increasingly adopted in
cardiac surgery to measure regional cerebral oxygen saturation. This method takes
advantage of the fact that light in the near-infrared spectrum penetrates tissue,
including bone and muscle. Sensors are placed at fixed distances from a light
emitter, and algorithms subtract superficial light absorption from deep
absorption to provide an index of tissue oxygenation. Although the popularity of
NIRS monitoring is growing, definitive data that prove outcome benefits with its
use remain sparse. Therefore, widespread, routine use of NIRS as a
standard-of-care monitor cannot be recommended at present. Recent investigations
have focused on the use of NIRS in subgroups that may benefit from NIRS
monitoring, such as pediatric patients. Furthermore, a novel application of
processed NIRS information for monitoring cerebral autoregulation and tissue
oxygenation (e.g., kidneys and the gut) is promising.