Heart rate variability and subsequent psychological distress among family members of intensive care unit patients.
Benjamin R E HarrisSarah J BeesleyRamona O HopkinsEliotte L HirshbergEmily WilsonJorie ButlerThomas A OnikiKathryn G KuttlerJames F OrmeSamuel M BrownPublished in: The Journal of international medical research (2021)
Almost one-third of family members experienced anxiety at three months after enrollment. HRV, measured by LF/HF ratio, was not a predictor of psychologic distress, however, exploratory analyses indicated that DFA may be associated with PTSD outcomes.