Exploring Pain Phenotyping in Cervicogenic Headache Management

Area of Science:

• Neurology
• Pain Medicine
• Clinical Research

Background:

• Cervicogenic headache (CGH) intervention trials show varied results, suggesting diverse underlying pain mechanisms.
• Pain phenotyping, classifying patients by predominant pain mechanism, could enable more targeted CGH treatments.

Purpose of the Study:

• To explore the role of pain phenotyping in managing cervicogenic headache.
• To provide evidence-based recommendations for CGH pain phenotyping and stratified treatment.

Main Methods:

• Systematic review of clinical evidence on CGH pain mechanisms and treatment responses.
• Analysis of studies supporting nociceptive and nociplastic pain classifications in CGH.
• Synthesis of treatment recommendations based on identified pain phenotypes.

Main Results:

• Two primary CGH pain mechanisms identified: nociceptive and nociplastic.
• Specific treatments recommended for each phenotype: muscle relaxants and spinal manipulation for both; antidepressants for nociplastic; injections/denervation for nociceptive; neuromodulation for persistent nociplastic.
• Educational interventions for lifestyle factors are beneficial for nociplastic CGH.

Conclusions:

• Pain phenotyping offers a strategy for more precise clinical management of cervicogenic headache.
• Further prospective studies are necessary to confirm the impact of phenotyping on CGH clinical outcomes.