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Hemicrania continua: clinical and nosographic update
1Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY, USA.
Summary
Hemicrania continua (HC) is a rare headache disorder characterized by one-sided pain and a complete response to indomethacin. This review covers its clinical features, classification, and treatment options.
Area of Science:
- Neurology
- Headache Medicine
Background:
- Hemicrania continua (HC) is an uncommon primary headache syndrome.
- Key diagnostic features include strictly unilateral, moderate, fluctuating, long-lasting pain and an absolute response to indomethacin.
Discussion:
- Autonomic symptoms are less prominent in HC compared to cluster headache and chronic paroxysmal hemicrania.
- HC is slated for inclusion in the 2003 revision of the International Headache Society (IHS) classification.
Key Insights:
- The strict unilaterality and absolute indomethacin responsiveness are the most reliable diagnostic characteristics of HC.
- Understanding these features is crucial for accurate diagnosis and effective management of this headache disorder.
Outlook:
- Further research into the pathophysiology of HC may reveal novel therapeutic targets.
- The upcoming IHS classification revision will provide a standardized framework for HC diagnosis and research.