Brain tissue oxygen monitoring: a study of in vitro accuracy and stability of Neurovent-PTO and Licox sensors

摘要

Object Periods of brain tissue ischemia are common after severe head injury, and their occurrence and duration are negatively correlated with outcome. Accurate and reliable measurement of brain tissue oxygenation (B_ti pO₂) may be a key to improve patient outcome after severe head injury. Knowledge of stability and accuracy of the B_ti pO₂ systems is crucial. We have therefore conducted a bench test study of new Neurovent-PTO® (NV) and Licox® (LX) oxygen tension catheters to evaluate the sensor accuracy, response time to different oxygen tensions, response to temperature changes and long-term stability.