The Use of Near Infrared Spectroscopy (NIRS) to Estimate Intracranial Pressure (ICP)
The aim of this study is to determine whether we can predict the intracranial pressure using near infra-red spectroscopy
|Study Design:||Observational Model: Cohort
Time Perspective: Prospective
|Official Title:||The Use of Near Infrared Spectroscopy (NIRS) to Estimate Intracranial Pressure (ICP)|
- Intracranial elastance [ Time Frame: Participants will be followed while an arterial line and intracranial pressure monitor is present duing the ICU admission. This is expected to be an average of 5 days. ] [ Designated as safety issue: No ]Intracranial elastance (δP/δV)will be measured by dividing the pulse pressure of an invasive arterial blood pressure by the amplitude of high frequency oscillations in the near infrared (NIR) absorbance waveforms.
|Study Start Date:||June 2013|
|Estimated Study Completion Date:||June 2014|
|Estimated Primary Completion Date:||June 2014 (Final data collection date for primary outcome measure)|
Patients with raised intracranial pressure
The management of intracranial hypertension requires the presence of an intracranial pressure monitor. We are investigating whether the waveforms obtained from a near infrared spectroscopy device can predict what the intracranial pressure is non-invasively.
- Patients with intracranial hypertension who are intubated and ventilated in the ICU will be recruited
- we will record there intracranial pressure and systemic arterial pressure
- recordings from the near infrared device will be recorded and analysed off-line
- we will correlate the waveform tracings from near infrared spectroscopy and the arterial tracing