Hyperexcitable state of the brainstem in children with post-traumatic vomiting as evidenced by brainstem auditory-evoked potentials.
Brainstem auditory-evoked potentials were studied within 6 hours after mild head injury in 17 children with post-traumatic vomiting. Compared with 8 control subjects, the children with frequent vomiting showed a significant shortening of peak latency for wave III. This mechanism appears to be essentially the reverse of that found in the post-concussion syndrome in which significant delay of wave III has been reported. These findings indicate transient facilitatory effects of trauma on brainstem auditory transmission in post-traumatic vomiting.
D001306:Auditory Pathways / Q000503:physiopathology; D001307:Auditory Perception / Q000502:physiology; D001930:Brain Injuries / Q000503:physiopathology*; D001933:Brain Stem / Q000503:physiopathology*; D002648:Child; D002675:Child, Preschool; D005072:Evoked Potentials, Auditory; D005260:Female; D006801:Humans; D008297:Male; D011930:Reaction Time / Q000502:physiology; D014839:Vomiting / Q000503:physiopathology*