Journal
BRAIN INJURY
Volume 27, Issue 2, Pages 200-208Publisher
TAYLOR & FRANCIS LTD
DOI: 10.3109/02699052.2012.672786
Keywords
Brain injury; growth hormone deficiency; neuropsychology; quality-of-life; cognition
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Funding
- Commonwealth Neurotrauma Initiative Trust Fund [07-302]
- NIH [M01RR000847, K08HD060739]
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Objective: To compare neurocognition and quality-of-life (QoL) in a group of children and adolescents with or without growth hormone deficiency (GHD) following moderate-to-severe traumatic brain injury (TBI). Study designs: Thirty-two children and adolescents were recruited from the TBI clinic at a children's hospital. Growth hormone (GH) was measured by both spontaneous overnight testing and following arginine/glucagon stimulation administration. Twenty-nine subjects participated in extensive neuropsychological assessment. Results: GHD as measured on overnight testing was significantly associated with a variety of neurocognitive and QoL measures. Specifically, subjects with GHD had significantly (p<0.05) lower scores on measures of visual memory and health-related quality-of-life. These scores were not explained by severity of injury or IQ (p>0.05). GHD noted in response to provocative testing was not associated with any neurocognitive or QoL measures. Conclusions: GHD following TBI is common in children and adolescents. Deficits in neurocognition and QoL impact recovery after TBI. It is important to assess potential neurocognitive and QoL changes that may occur as a result of GHD. It is also important to consider the potential added benefit of overnight GH testing as compared to stimulation testing in predicting changes in neurocognition or QoL.
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