Disturbance of cerebral vasomotor regulation has been shown to be associated with the severity of traumatic brain injury (TBI). The transient hyperaemic response (THR) test is a test of the pressure autoregulatory response in terms of cerebral blood flow velocity after a brief carotid artery compression. Correlating with the test of cerebral vascular reactivity (CVR) to carbon dioxide by means of passive hyperventilation suggested that the THR test is a simple clinical test for the assessment of cerebral haemodynamic status in head-injured patients.
CITATION STYLE
Ng, S. C., Poon, W. S., Chan, M. T., Lam, J. M., Lam, W., & Metreweli, C. (2000). Transcranial Doppler ultrasonography (TCD) in ventilated head injured patients: correlation with stable xenon-enhanced CT. Acta Neurochirurgica. Supplement, 76, 479–482. https://doi.org/10.1007/978-3-7091-6346-7_100
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