OBJECTIVE: To evaluate heart rate variability (HRV) of patients with traumatic brain injury (TBI). METHODS: By a prospective study, the HRV was assessed in 20 patients with TBI during the sub-acute period post-injury (the first test was performed at a mean time post-insult of 38 days) and a matched control. The patients were examined twice, 1 month apart. The assessment included HRV (both in time and frequency domains), GCS, length of coma, brain CT, FIM and FAM. RESULTS: A significant difference was found between patients and controls concerning HRV total power, i.e. frequencies between 0.01-0.6 Hz (high frequency p = 0.003, low frequency p = 0.013, total power p = 0.034) and for standard deviation of RR interval p = 0.011. HRV changes were related more to the timing of the evaluation than to the severity of the brain damage. CONCLUSION: HRV differed of patients with TBI and in the control group. Tendency to HRV normalization changes was detected during the first 3 months after the injury, which suggests recovery of the autonomic nervous system.
OBJECTIVE: To evaluate heart rate variability (HRV) of patients with traumatic brain injury (TBI). METHODS: By a prospective study, the HRV was assessed in 20 patients with TBI during the sub-acute period post-injury (the first test was performed at a mean time post-insult of 38 days) and a matched control. The patients were examined twice, 1 month apart. The assessment included HRV (both in time and frequency domains), GCS, length of coma, brain CT, FIM and FAM. RESULTS: A significant difference was found between patients and controls concerning HRV total power, i.e. frequencies between 0.01-0.6 Hz (high frequency p = 0.003, low frequency p = 0.013, total power p = 0.034) and for standard deviation of RR interval p = 0.011. HRV changes were related more to the timing of the evaluation than to the severity of the brain damage. CONCLUSION: HRV differed of patients with TBI and in the control group. Tendency to HRV normalization changes was detected during the first 3 months after the injury, which suggests recovery of the autonomic nervous system.
Authors: Arpi Minassian; Mark A Geyer; Dewleen G Baker; Caroline M Nievergelt; Daniel T O'Connor; Victoria B Risbrough Journal: Psychosom Med Date: 2014-05 Impact factor: 4.312
Authors: Yejin Lee; Ryan J Walsh; Mandy W M Fong; Marek Sykora; Michelle M Doering; Alex W K Wong Journal: Neurosci Biobehav Rev Date: 2021-10-06 Impact factor: 8.989
Authors: Flora M Hammond; John D Corrigan; Jessica M Ketchum; James F Malec; Kristen Dams-OʼConnor; Tessa Hart; Thomas A Novack; Jennifer Bogner; Marie N Dahdah; Gale G Whiteneck Journal: J Head Trauma Rehabil Date: 2019 Jul/Aug Impact factor: 2.710