Related Experiment Videos
Brain tissue PO(2), PCO(2), and pH during cerebral vasospasm.
F T Charbel1, X Du, W E Hoffman
1Department of Neurosurgery, University of Illinois at Chicago, Chicago, Illinois 60612, USA.
Surgical Neurology
|March 10, 2001
Summary
Brain tissue monitoring detected ischemia in subarachnoid hemorrhage (SAH) patients with vasospasm. Lower pH and higher carbon dioxide pressure (PCO2) indicated issues, while oxygen levels remained stable.
Area of Science:
- Neurology
- Neurosurgery
- Critical Care Medicine
Background:
- Aneurysmal subarachnoid hemorrhage (SAH) poses risks of cerebral vasospasm and ischemia.
- Early detection of ischemia is crucial for managing SAH patients.
Observation:
- Brain tissue monitoring using a Neurotrend 7 probe was performed in 10 SAH patients.
- Monitoring assessed brain tissue gases (PO2, PCO2) and pH over 7-10 days.
- Vasospasm onset was confirmed by angiography and Xe/CT.
Findings:
- Patients developing vasospasm showed significantly decreased brain tissue pH (to 6.7) and increased PCO2 (to 60 mmHg) compared to controls.
- Brain tissue oxygen pressure (PO2) did not significantly change in patients with vasospasm.
- These changes were statistically significant (p < 0.001).
Implications:
- Brain tissue monitoring can indicate ischemia during vasospasm in SAH patients.
- Monitoring provides valuable data for timely intervention and improved patient outcomes.
- This technique aids in understanding the physiological changes associated with vasospasm post-SAH.