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Basal cutaneous pain threshold in headache patients
Maurizio Zappaterra1, Simona Guerzoni, Maria Michela Cainazzo
1Headache and Drug Abuse Inter Dept. Research Centre, University of Modena, Modena, Italy.
The Journal of Headache and Pain
|February 22, 2011
Summary
Medication overuse significantly lowers cutaneous pain threshold (CPT) in headache patients, more so than headache chronification. This reduction in pain sensitivity can trigger new attacks, leading to chronic headache conditions.
Area of Science:
- Neurology
- Pain Medicine
- Clinical Neuroscience
Background:
- Headache patients often experience altered pain perception.
- Understanding factors influencing pain thresholds is crucial for effective headache management.
Purpose of the Study:
- To investigate cutaneous pain threshold (CPT) during headache interictal phases.
- To explore relationships between headache frequency, analgesic use, and pain perception.
Main Methods:
- Evaluated 98 headache patients and 26 controls.
- Assessed acute allodynia (AA) via questionnaire and interictal allodynia (IA) using monofilaments.
- Analyzed data correlating headache characteristics with CPT and allodynia.
Main Results:
- Acute allodynia (AA) prevalence increased with headache chronification in both migraine and tension-type headache (TTH).
- Interictal CPT decreased and interictal allodynia (IA) increased in chronic headache patients, particularly with medication overuse.
- Overuse of analgesics (more than one daily drug) significantly reduced CPT.
Conclusions:
- Medication overuse plays a more critical role than chronification in lowering CPT.
- Prolonged medication overuse reduces pain threshold, potentially initiating new attacks and chronicization.
- Clinical headache history can indicate reduced CPT, even without specific skin testing.
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