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Dangerous and Thunderclap Headaches

Authors

  • R. Allan Purdy MD, FRCPC, FACP, FAHS,

    1. From Medicine, Dalhousie University, Halifax, Nova Scotia, Canada (R.A. Purdy); Neurology, Dartmouth Medical School, Hanover, NH, USA (T.N. Ward)
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  • Thomas N. Ward MD, FAAN, FAHS

    Corresponding author
    1. From Medicine, Dalhousie University, Halifax, Nova Scotia, Canada (R.A. Purdy); Neurology, Dartmouth Medical School, Hanover, NH, USA (T.N. Ward)
      T.N. Ward, Neurology, Dartmouth Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH 03756, USA.
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  • Conflict of Interest: The authors report no conflict of interest.

T.N. Ward, Neurology, Dartmouth Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH 03756, USA.

Abstract

The International Classification of Headache Disorders-II considers dangerous and thunderclap headaches as secondary headaches – in other words due to an underlying cause. Many, but not all of the underlying etiologies, are vascular disorders, and many are potentially life threatening. An especially comprehensive clinical approach is necessary when seeing patients with these potential disorders.

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