Less Cortical Thickness in Patients With Persistent Post-Traumatic Headache Compared With Healthy Controls: An MRI...

Area of Science:

• Neuroscience
• Neurology
• Radiology

Background:

• Persistent post-traumatic headache (PPTH) is a common, long-term consequence of concussion.
• Understanding the neuropathology of PPTH is crucial for developing effective treatments.
• This study investigates brain morphology differences in PPTH patients.

Purpose of the Study:

• To compare cortical thickness in PPTH patients versus healthy controls.
• To determine if cortical thickness variations correlate with headache burden (frequency, duration) in PPTH.
• To elucidate the neuropathological underpinnings of persistent post-traumatic headache.

Main Methods:

• Brain MRI scans were acquired from 33 PPTH patients and 33 healthy controls.
• Cortical thickness was automatically calculated using FreeSurfer software.
• General linear models identified differences in cortical thickness and associations with headache frequency and duration.

Main Results:

• PPTH patients exhibited reduced cortical thickness in bilateral superior frontal, caudal middle frontal, precentral, and right parietal regions compared to controls.
• No regions showed increased cortical thickness in PPTH patients.
• Reduced superior frontal cortical thickness correlated negatively with headache frequency in PPTH patients.

Conclusions:

• PPTH is associated with decreased cortical thickness in specific frontal and parietal brain areas.
• Headache frequency in PPTH patients is linked to reduced thickness in bilateral superior frontal regions.
• Brain morphology in PPTH may be dynamically altered by headache frequency.