Santoro JD

A recent study identifies early cerebral diffusion changes in children with tension-type and migraine-type headaches compared with controls. The hypothesized mechanisms of nociception in migraine-type and tension-type headaches may explain the findings as a precursor to structural changes seen in adult patients with chronic headache. Patients evaluated for tension-type or migraine-type headache without aura from May 2014 to July 2016 in a single center were retrospectively reviewed. Thirty-two patients with tension-type headache and 23 with migraine-type headache at an average of 4 months after diagnosis were enrolled. All patients underwent diffusion weighted imaging at 3T before the start of pharmacotherapy. Researchers found:

• There were no significant differences in regional brain volumes between the groups.
• Patients with tension-type and migraine-type headaches showed significantly increased apparent diffusion coefficient (ADC) in the hippocampus and brain stem compared with controls.
• Additionally, only patients with migraine-type headache showed significantly increased ADC in the thalamus and a trend toward increased ADC in the amygdala compared with controls.

Brain diffusion abnormalities in children with tension-type and migraine-type headaches. [Published online ahead of print March 15, 2018]. AJNR Am J Neuroradiol. doi:10.3174/ajnr.A5582.

A recent study identifies early cerebral diffusion changes in children with tension-type and migraine-type headaches compared with controls. The hypothesized mechanisms of nociception in migraine-type and tension-type headaches may explain the findings as a precursor to structural changes seen in adult patients with chronic headache. Patients evaluated for tension-type or migraine-type headache without aura from May 2014 to July 2016 in a single center were retrospectively reviewed. Thirty-two patients with tension-type headache and 23 with migraine-type headache at an average of 4 months after diagnosis were enrolled. All patients underwent diffusion weighted imaging at 3T before the start of pharmacotherapy. Researchers found:

• There were no significant differences in regional brain volumes between the groups.
• Patients with tension-type and migraine-type headaches showed significantly increased apparent diffusion coefficient (ADC) in the hippocampus and brain stem compared with controls.
• Additionally, only patients with migraine-type headache showed significantly increased ADC in the thalamus and a trend toward increased ADC in the amygdala compared with controls.

Brain diffusion abnormalities in children with tension-type and migraine-type headaches. [Published online ahead of print March 15, 2018]. AJNR Am J Neuroradiol. doi:10.3174/ajnr.A5582.

A recent study identifies early cerebral diffusion changes in children with tension-type and migraine-type headaches compared with controls. The hypothesized mechanisms of nociception in migraine-type and tension-type headaches may explain the findings as a precursor to structural changes seen in adult patients with chronic headache. Patients evaluated for tension-type or migraine-type headache without aura from May 2014 to July 2016 in a single center were retrospectively reviewed. Thirty-two patients with tension-type headache and 23 with migraine-type headache at an average of 4 months after diagnosis were enrolled. All patients underwent diffusion weighted imaging at 3T before the start of pharmacotherapy. Researchers found:

• There were no significant differences in regional brain volumes between the groups.
• Patients with tension-type and migraine-type headaches showed significantly increased apparent diffusion coefficient (ADC) in the hippocampus and brain stem compared with controls.
• Additionally, only patients with migraine-type headache showed significantly increased ADC in the thalamus and a trend toward increased ADC in the amygdala compared with controls.

Brain diffusion abnormalities in children with tension-type and migraine-type headaches. [Published online ahead of print March 15, 2018]. AJNR Am J Neuroradiol. doi:10.3174/ajnr.A5582.