Prevalence and predictors of affective lability after paediatric traumatic brain injury.

Mark McIntosh,'s picture
PubMed URL: 
http://www.ncbi.nlm.nih.gov/pubmed/25950263
Author: 
Gerring JP
Author List: 
Vasa RA
Suskauer SJ
Thorn JM
Kalb L
Grados MA
Slomine BS
Salorio CF
Gerring JP
Journal: 
Brain Inj
PubMed ID: 
25950263
Pagination: 
921-8
Volume: 
29
Issue: 
7-8
Abstract: 
Paediatric severe traumatic brain injury (TBI) is associated with significant post-injury affective and behavioural problems. Few studies have examined the prevalence and characteristics of affective lability after paediatric TBI.Ninety-seven children with severe TBI were evaluated 1 year post-injury for the presence of affective lability using the Children's Affective Lability Scale (CALS). Demographic, clinical and brain lesion characteristics were also assessed.Affective lability significantly increased after injury. Eighty-six children had a pre-injury CALS score of 1 SD or less from the group pre-injury mean (M = 8.11, SD = 9.31), of which 35 and 15 children had a 1 SD and 2 SD increase in their CALS score from pre- to post-injury, respectively. A variety of affective shifts manifested post-injury including anxiety, silliness, dysphoria and irritability. The most severe symptoms were irritability and unpredictable temper outbursts. Risk factors for affective lability included elevated pre-injury affective lability and psychosocial adversity as well as greater damage to the orbitofrontal cortex. Post-injury affective lability was most frequently associated with a post-injury diagnosis of attention-deficit hyperactivity disorder.Affective lability is common after paediatric TBI and frequently manifests as irritability and unpredictable outbursts. Early intervention is needed to improve psychiatric outcomes.
Published Date: 
January, 2015

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