Partial pressure of oxygen in brain tissue

Abbreviation: PbtO2

The oxygen content of the white matter of the brain. It is determined by inserting a small monitor directly into the brain parenchyma. Normal values are > 20 mm Hg.

Low brain tissue oxygen tension (PbtO2), or brain hypoxia, is an independent predictor of poor outcome 1)

Kirkman MA, Smith M. Brain Oxygenation Monitoring. Anesthesiol Clin. 2016 Sep;34(3):537-56. doi: 10.1016/j.anclin.2016.04.007. PMID: 27521197.
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