Day-to-Day Change in Pulsatility Index Describes Anterior Cerebral Circulation Disturbance and Functional Outcomes in Pediatric Traumatic Brain Injury.

Background: Traumatic brain injury (TBI) is a significant source of morbidity and mortality in children. Transcranial Doppler (TCD) ultrasound measures the cerebral arterial circulation allowing for the calculation of pulsatility indices (PIs) that provide an assessment of cerebral blood flow alterations. However, the use of PI in children with TBI is poorly understood and may be an important measure for the nursing care of children.