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Related Experiment Videos

Local decrease of pressure pain threshold in nummular headache.

César Fernández-de-Las-Peñas1, María Luz Cuadrado, Francisco J Barriga

  • 1Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Avenida de Atenas s/n, 28922 Alcorcón, Madrid, Spain.

Headache
|July 27, 2006
PubMed
Summary
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Nummular headache (NH) involves localized head pain. Patients with NH show increased pain sensitivity in the affected head area compared to other body points.

Area of Science:

  • Neurology
  • Pain Medicine

Background:

  • Nummular headache (NH) is a primary headache disorder.
  • Characterized by localized, coin-shaped head pain.

Purpose of the Study:

  • To investigate pain sensitivity in patients with nummular headache.
  • To compare pressure pain thresholds (PPT) between symptomatic and asymptomatic areas.

Main Methods:

  • 12 patients with NH underwent PPT measurements.
  • PPT was assessed in symptomatic cranial areas, contralateral symmetrical points, and extracephalic points.
  • High repeatability (ICC: 0.93-0.97) was observed for PPT measurements.

Main Results:

  • Mean PPT was significantly lower in the symptomatic cranial area compared to the contralateral side (1.8 vs 2.4 kg/cm(2), P < .001).

Related Experiment Videos

  • PPT was similar between symmetrical extracephalic reference points.
  • No significant differences in PPT were found in extracephalic points.

    • Conclusions:

    • Nummular headache is associated with heightened local pain sensitivity.
    • This suggests a localized mechanism contributing to NH pain.