Abstract
Objective Headache disorders are frequently associated with epilepsy. Some neuromodulation
techniques for refractory epilepsy have been reported to positively influence the
associated chronic headache. However, the exact mechanism of action of vagus nerve
stimulation (VNS) and anterior thalamic nuclei-deep brain stimulation (ANT-DBS) on
pain perception is unclear.
Method We report a structured assessment of pain perception in a patient who experienced
headache relief after ANT-DBS for refractory focal epilepsy and compare it with pain
perception of epilepsy patients with chronic headache who were treated with and without
VNS.
Results The pain-associated symptoms in the ANT-DBS case were on the Pain Anxiety Symptoms
Scale (PASS-40) subscore “physiological anxiety” closer to the control collective,
whereas in patients with VNS, this was more likely for the PASS-40 subscores “cognitive
anxiety” or “escape and avoidance.”
Conclusion ANT-DBS and VNS may influence epilepsy-associated chronic headache in different ways.
Keywords
ANT-DBS - migraine - pain perception - VNS - epilepsy