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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
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1 to 1 of 1 Research Studies DisplayedPiantino JA, Lin A, Crowder D
Early heart rate variability and electroencephalographic abnormalities in acutely brain-injured children who progress to brain death.
This study retrospective case-control study explored the hypothesis that lower heart rate variability in brain-injured children is an early indicator of autonomic system failure and predicts progression to brain death. The association between heart rate variability and markers of brain dysfunction between brain-injured children who progressed to brain death and those who survived is also examined. Heart rate variability in patients was estimated using 5-minute electrocardiogram segments. Patients who progressed to brain death exhibited significantly lower heart rate variability in the time and frequency domains. Heart rate variability was significantly lower in those patients with discontinuous or attenuated/featureless electroencephalogram than those with slow/disorganized background. The researchers conclude that these findings support the concept of autonomic system failure as an early indicator of impending brain death, and that decreased heart rate variability is associated with markers of central nervous system dysfunction, such as electroencephalogram abnormalities.
AHRQ-funded; HS022981.
Citation: Piantino JA, Lin A, Crowder D .
Early heart rate variability and electroencephalographic abnormalities in acutely brain-injured children who progress to brain death.
Pediatr Crit Care Med 2019 Jan;20(1):38-46. doi: 10.1097/pcc.0000000000001759..
Keywords: Brain Injury, Children/Adolescents, Neurological Disorders, Outcomes