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A knockout punch: C. Miller Fisher's migraine accompaniments.

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Transient cerebral ischemic attacks (TIAs) in patients over 40 may mimic migraine symptoms. Differentiating these TIAs from other cerebrovascular events is crucial for accurate diagnosis and treatment.

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Area of Science:

  • Neurology
  • Cerebrovascular Diseases

Background:

  • Transient cerebral ischemic attacks (TIAs) can present atypically in patients over 40.
  • Some TIAs exhibit neurological symptoms similar to migraine aura.
  • Normal cerebral angiograms are common in these cases.

Purpose of the Study:

  • To investigate TIAs with migraine-like neurological accompaniments.
  • To identify diagnostic criteria for differentiating these TIAs from other cerebrovascular events.

Main Methods:

  • Retrospective analysis of 120 patients over 40 with unexplained TIAs and normal cerebral angiograms.
  • Categorization of patients based on symptom clusters (visual, paresthesias, speech disturbance, brain stem symptoms, paresis).
  • Comparison of symptom progression and characteristics with known cerebrovascular pathologies.

Main Results:

  • The study collected 120 patients with TIAs resembling migraine accompaniments.
  • Common symptoms included visual disturbances, paresthesias, and speech alterations.
  • Migrainous features like progressive build-up and migration of symptoms were noted.
  • Headache was present in 50% of cases.

Conclusions:

  • TIAs with migraine-like features require careful diagnosis to rule out other cerebrovascular processes, coagulation disorders, and seizures.
  • Angiography is recommended except in classical migraine cases.
  • Diagnosis is aided by recurrent episodes or the presence of migraine-like scintillations.