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[Composition of cerebro-spinal fluid during enflurane anesthesia]
1Department of Anesthesiology, Shimonoseki Kousei Hospital.
Masui. the Japanese Journal of Anesthesiology
|October 1, 1991
Summary
Enflurane anesthesia did not alter cerebrospinal fluid (CSF) composition in patients undergoing shunt surgery. Electrolyte, glucose, protein, and osmolarity levels remained stable, indicating no induced abnormalities during clinical anesthesia.
Area of Science:
- Anesthesiology
- Neuroscience
- Clinical Chemistry
Context:
- Investigated cerebrospinal fluid (CSF) composition during two anesthesia types: enflurane (GOE group, n=15) and neurolept (NLA group, n=8).
- Patients underwent ventriculo-peritoneal shunt operations.
- Anesthesia duration was standardized at 130 minutes for CSF sampling in both groups.
Purpose:
- To determine if enflurane anesthesia affects the biochemical composition of cerebrospinal fluid (CSF).
- To compare CSF composition between enflurane and neurolept anesthesia.
- To assess electrolyte, glucose, protein, and osmolarity levels in CSF relative to serum.
Summary:
- Enflurane (1.6 +/- 0.8% average concentration) and neurolept anesthesia showed no statistically significant differences in CSF composition.
- CSF electrolyte concentrations and their serum ratios remained within narrow ranges in both groups.
- Glucose, protein, and osmolarity in CSF and serum were comparable between enflurane and neurolept anesthesia groups.
Impact:
- Concludes that enflurane anesthesia does not induce abnormalities in CSF composition during clinical settings.
- Provides evidence supporting the safety of enflurane regarding CSF homeostasis.
- Informs clinical practice for patients requiring anesthesia during neurosurgical procedures involving CSF.