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Related Concept Videos

Pain01:20

Pain

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Pain serves as a critical warning signal that alerts the body to potential or actual harm. When mechanical pressure on the skin is intense, such as from a sharp pinch, the sensation transitions from touch to pain. Similarly, extreme temperatures, like a hot pot handle, convert the sensation of heat into pain. Pain can also result from overstimulation of other senses, such as blinding light, loud noise, or the intense heat from habañero peppers. This ability to sense pain is essential for...
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Imploding and exploding migraine headaches: comparison of methods to diagnose pain directionality.

Julia A Files1, Todd J Schwedt, Anita P Mayer

  • 1Department of Internal Medicine, Mayo Clinic in Arizona, Scottsdale, AZ, USA.

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Determining headache directionality in women with migraine is inconsistent across different methods. Physician and patient assignments showed weak agreement, indicating a need for improved assessment techniques for migraine pain.

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Area of Science:

  • Neurology
  • Pain Medicine
  • Women's Health

Background:

  • Headache directionality (imploding, exploding, ocular) in migraine may indicate varied pathogenesis.
  • Pain directionality might predict response to onabotulinumtoxin A treatment.
  • Optimal methods for assessing migraine headache directionality are not well-established.

Purpose of the Study:

  • To compare methods of determining headache directionality in women with migraine.
  • To assess concordance between physician and patient self-assignment of pain directionality.
  • To evaluate consistency of patient-reported directionality across different assessment methods.

Main Methods:

  • Prospective cross-sectional survey of 198 female migraine patients.
  • Patients self-assigned headache directionality using graphical images and a written question.
  • Clinicians assigned headache directionality via structured interviews.
  • Concordance assessed using Kappa coefficients.

Main Results:

  • Substantial variation in headache directionality assignment based on the determination method.
  • Weak concordance (Kappa coefficients 0.33-0.35) between clinician and patient assignments.
  • Weak concordance between patient self-assignment methods (written vs. graphical).

Conclusions:

  • Headache directionality assignment in migraine is method-dependent.
  • Current methods show weak agreement between patients and clinicians.
  • Development of improved, reliable methods for determining headache directionality is necessary.