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Related Experiment Videos

Transformed migraine

N T Mathew1

  • 1Houston Headache Clinic, TX 77004.

Cephalalgia : an International Journal of Headache
|April 1, 1993
PubMed
Summary
This summary is machine-generated.

Most chronic daily headache cases are transformed migraine, not chronic tension-type headache. Transformed migraine can be drug-induced or not, presenting mixed headache features.

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Area of Science:

  • Neurology
  • Headache Medicine
  • Clinical Neuroscience

Background:

  • Chronic daily headache (CDH) affects a significant patient population.
  • The International Headache Classification (IHC) currently categorizes headache disorders.
  • A minority of CDH patients meet criteria for chronic tension-type headache (CTTH).

Purpose of the Study:

  • To investigate the prevalence and characteristics of transformed migraine (TM) in chronic daily headache.
  • To differentiate subtypes of transformed migraine, including drug-induced transformed migraine (DITM).
  • To assess the need for revising the International Headache Classification to include CDH and TM subtypes.

Main Methods:

  • Clinical evaluation of patients presenting with chronic daily headache.

Related Experiment Videos

  • Review of patient history to identify distinct migraine episodes preceding chronic headache.
  • Assessment for medication overuse and its correlation with headache phenotype.

    • Main Results:

    • The majority of chronic daily headache patients are diagnosed with transformed migraine, not CTTH.
    • Transformed migraine patients exhibit overlapping features of both migraine and CTTH.
    • Two primary subtypes of TM were identified: drug-induced transformed migraine (DITM) and non-drug-induced TM.

    Conclusions:

    • Transformed migraine is the predominant form of chronic daily headache.
    • The current International Headache Classification may require revision to better encompass CDH and its TM subtypes.
    • Distinguishing between DITM and other forms of TM is clinically relevant for treatment strategies.