An adaptation of a fiberoptic intracranial pressure monitoring system for clinical use is described. The method allows easy and reliable acute and chronic intracranial pressure registration in anesthetized as well as conscious rats. The disposable fiberoptic probes, originally designed for human use, can be re-used limitlessly. The fiberoptic method is compared with conventional monitoring procedures under different experimental conditions. The validity of intraparenchymal and epidural measurements is discussed. The importance of chronic intracranial pressure registration in conscious laboratory animals is stressed.
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