期刊
BRAIN INJURY
卷 20, 期 4, 页码 437-444出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/02699050600664715
关键词
traumatic brain injury; dysautonomia; heart rate variability
Primary objective: To investigate disconnection theories postulated as the cause of dysautonomia following severe traumatic brain injury (TBI) through analysis of heart rate variability (HRV). Methods and procedures: Data were collected on age-matched subjects with and without dysautonomia ( eight subjects in each group) and 16 non-injured controls. Data included injury details, continuous electrocardiograph recordings and rehabilitation outcome. Main outcomes and results: The TBI group revealed significant differences in HRV parameters both compared to controls and between dysautonomic and non-dysautonomic subjects. Additionally, HRV parameters for dysautonomic subjects showed evidence of an uncoupling of the normal relationship between heart rate and sympathetic/parasympathetic balance. HRV changes persisted for the dysautonomia group for a mean of 14 months post-injury. Conclusions: Dysautonomic subjects revealed prolonged uncoupling of heart rate and HRV parameters compared to non-dysautonomic subjects and controls. These findings represent direct
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