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由古菊梅著作·2009—Thepurposeofthisstudywastoexaminetheaccuracyandreproducibilityofintracranialpressure(ICP)measuredbytheexternalventriculardrainage(EVD)​ ...

The purpose of this study was to examine the accuracy and reproducibility of intracranial pressure (ICP) measured by the external ventricular drainage (EVD) system. The effect of specific gravity (SpGr) of cerebral spinal fluid (CSF) on the accuracy of the EVD-measured-ICP was also determined. Sixty-two subjects with EVD system were included. The ventriculostomy catheter connected to both the ICP monitor and EVD system was used to measure ICP. ICP was repeatedly measured 6 times in three positions: head at 0 degree, head up 15 degree, and head up 30 degree. The accuracy of the EVD-measured-ICP was determined using the Pearson’s correlation, paired t-test, and the Bland-Altman method. Analysis of the reproducibility of ICP measurements by EVD system was done with the Pearson correlation and coefficient of variation (CV). The mean ICP between two measurements was significantly corr...