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Article type: Research Article
Authors: Nikles, Janea; * | Mitchell, Geoffreya | McKinlay, Lynneb | Waugh, Mary-Clarec | Epps, Adrienned | Carmont, Sue-Anna | Schluter, Philip J.a; e | Lloyd, Owenb | Senior, Hugha; f
Affiliations: [a] The University of Queensland, Brisbane, QLD, Australia | [b] Lady Cilento Children’s Hospital, Brisbane, QLD, Australia | [c] The Children’s Hospital at Westmead, NSW, Australia | [d] Sydney Children’s Hospital, Sydney, NSW, Australia | [e] University of Canterbury, Christchurch, New Zealand | [f] Massey University, Auckland, New Zealand
Correspondence: [*] Address for correspondence: Dr. Jane Nikles, The University of Queensland Centre for Clinical Research, Building 71/918, Royal Brisbane & Women’s Hospital Campus, Herston, QLD 4029, Australia. Tel.: +61 7 3346 5013; E-mail: [email protected].
Abstract: BACKGROUND: There is controversy about whether central nervous system stimulant (CNS) medication is an effective method of treating acquired attention deficits in children with acquired brain injury (ABI). OBJECTIVE: The primary objective was to determine the effectiveness of stimulants on attention, concentration and executive function in children with ABI. METHODS: Randomised, double-blind, placebo-controlled, multi-centre n-of-1 trials of stimulants assessing effect on attention, concentration and executive function in 53 children and adolescents with ABI who were outpatients of three tertiary hospitals in Australia. Trials consisted of 3 two-week cycles, each cycle consisting of stimulant medication at doses titrated by physician (1 week) and placebo (1 week) in random order. The effect on parent and teacher Conners’ 3 and Behaviour Rating Inventory of Executive Function (BRIEF) was analysed using hierarchical Bayesian methods. RESULTS: Overall, Teacher Conners’ Hyperactivity/Impulsivity and Teacher BRIEF Global Executive scales showed important improvement (T-score mean change 2.6; 95% credible interval (CI): 0.4, 4.9; posterior probability of mean change >0 : 0.99; T-score mean change 3.1; 95% CI: –0.1, 6.4; posterior probability of mean change >0 : 0.97). There were no important improvements in parent/guardian-reported primary outcomes. There was heterogeneity in response identified through individual results of the N-of-1 trials. CONCLUSIONS: N-of-1 trials have a clear role in identifying those children/adolescents with ABI and secondary Attention Deficit Hyperactivity Disorder (ADHD) who have important improvements, or worsening on stimulants. The results can only be generalized to children/adolescents who have an apparent pre-trial clinical effect from stimulants.
Keywords: Paediatrics, traumatic brain injury, acquired brain injury
DOI: 10.3233/NRE-161386
Journal: NeuroRehabilitation, vol. 40, no. 1, pp. 11-21, 2017
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