Headache, epilepsy and photosensitivity: how are they connected?

Area of Science:

• Neurology
• Epileptology
• Headache Medicine

Background:

• Headache and epilepsy are frequently associated, yet their electroclinical and pathophysiological interactions, especially concerning photosensitivity, remain unclear in both children and adults.
• The link between headache and epilepsy spans all epilepsy types, not exclusively occipital epilepsy, and peri-ictal headaches are often underreported due to patient focus on seizures.

Purpose of the Study:

• To explore the electroclinical and pathophysiological relationship between headache, epilepsy, and photosensitivity.
• To highlight the significance of peri-ictal headaches and the potential role of altered cerebral cortex excitability as a unifying factor.
• To advocate for increased physician awareness of this association for improved diagnosis and treatment strategies.

Main Methods:

• Review of existing literature on the co-occurrence of headache, epilepsy, and photosensitivity.
• Analysis of the potential role of altered cerebral cortex excitability in linking these conditions.
• Discussion of clinical implications for diagnosis and management.

Main Results:

• The association between headache and epilepsy is common across various epilepsy types.
• Altered cerebral cortex excitability is proposed as a potential mechanism linking headache, epilepsy, and photosensitivity.
• Current diagnostic and treatment guidelines may not adequately address headache/migraine as a sole ictal epileptic manifestation.

Conclusions:

• The interplay between headache, epilepsy, and photosensitivity warrants further investigation.
• Physicians should consider this association in clinical practice to ensure accurate diagnosis and treatment for affected patients.
• Future research should focus on the triggering role of photosensitivity in both headache and epilepsy.