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Usefulness of beta 2-transferrin assay in the detection of cerebrospinal fluid leaks following head injury.
Journal of Neurosurgery 1992 November
The clinical value of analyzing various fluids and exudates for beta 2-transferrin (beta 2-Tfn) to detect cerebrospinal fluid (CSF) leakage following head trauma was reviewed in a series of 11 cases. Qualitative detection of beta 2-Tfn was performed by agarose gel electrophoresis of tears, ear and nose exudates, cerebral cyst fluid, and wound discharge fluid in different cases. In each instance the presence of beta 2-Tfn in the analyzed fluid supported the diagnosis of a CSF leak. Equally, the demonstration of the absence of beta 2-Tfn in the fluid excluded the diagnosis of such a leak. Neither false-positive nor false-negative results were found, as indicated by separate radiological investigations and/or subsequent clinical assessment of patients. The detection of beta 2-Tfn in suspect fluids thus provides a highly sensitive and selective, rapid, and noninvasive test for the detection of CSF leakage in cases of head trauma.
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