TY - JOUR
T1 - Heart rate variability (HRV) of patients with traumatic brain injury (TBI) during the post-insult sub-acute period
AU - Keren, Ofer
AU - Yupatov, S.
AU - Radai, M. M.
AU - Elad-Yarum, R.
AU - Faraggi, D.
AU - Abboud, S.
AU - Ring, H.
AU - Groswasser, Z.
PY - 2005/8/10
Y1 - 2005/8/10
N2 - 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.
AB - 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.
KW - Autonomic nervous system
KW - Heart rate variability (HRV)
KW - Traumatic brain injury (TBI)
UR - http://www.scopus.com/inward/record.url?scp=21444448258&partnerID=8YFLogxK
U2 - 10.1080/02699050400024946
DO - 10.1080/02699050400024946
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AN - SCOPUS:21444448258
SN - 0269-9052
VL - 19
SP - 605
EP - 611
JO - Brain Injury
JF - Brain Injury
IS - 8
ER -