Key result
A predictive model combining age, Glasgow Coma Scale score, and heart rate variability variables demonstrated excellent discrimination for 12-month functional outcome (AUROC 0.91) and mortality (AUROC 0.86).
Why the study?
Heart rate variability reflects autonomic nervous system function and can associate with disease severity and prognosis, but its prognostic value in moderate-to-severe traumatic brain injury after decompression surgery needed investigation.
Does heart rate variability measurement predict long-term functional outcome and mortality in patients with moderate-to-severe traumatic brain injury after decompressive surgery?
Population
80 patients with moderate-to-severe traumatic brain injury after decompression surgery
Comparison
Heart rate variability parameters assessed across functional outcome and mortality groups
Design
Prospective study
Follow-up
One-year
Authors
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May aid prognostication in observational cohorts; hypothesis-generating and requires prospective validation before clinical use.
Cohort (n=80)
Yes
Does heart rate variability measurement predict long-term functional outcome and mortality in patients with moderate-to-severe traumatic brain injury after decompressive surgery?
Effect estimate: AUROC 0.91
Heart rate variability parameters measured early after decompressive surgery for traumatic brain injury independently predict 12-month functional outcome and mortality, improving prognostic accuracy when added to age and GCS score.
Lu et al. (2021) conducted a cohort in Moderate-to-severe traumatic brain injury (TBI) (n=80). Heart rate variability (HRV) parameters vs. Standard clinical predictors (Age, GCS score) was evaluated on 12-month functional outcome (unfavorable vs favorable) (AUROC 0.91). A predictive model combining age, Glasgow Coma Scale score, and heart rate variability variables demonstrated excellent discrimination for 12-month functional outcome (AUROC 0.91) and mortality (AUROC 0.86).
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