Normal Values of Brain Oxygenation

Normal Values of Cerebral Oxygenation

New technology allows non-invasive monitoring of brain oxygenation (Near-Infrared-Spectroscopy). However, there are no large series of normal values in various adult age groups. We hypothesised that baseline values in patients breathing room air are lower in old patients than in younger subjects and that younger patients respond increase their brain oxygenation more in response to supplemental oxygen.

Inclusion Criteria:

• Age between 25 and 95 years undergoing a elective surgical procedure

Exclusion Criteria:

• History of cerebral disease
• Dependence on supplemental oxygen