Cerebral near-infrared spectroscopy in adult patients after cardiac surgery is not useful for monitoring absolute values but may reflect trends in venous oxygenation under clinical conditions.
J Cardiothorac Vasc Anesth. 2007 Aug;21(4):535-9. doi: 10.1053/j.jvca.2006.09.010. Epub 2006 Dec 22.
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PMID: 17678780
Clinical Trial.