What predicts evolution from episodic to chronic cluster headache?

  title={What predicts evolution from episodic to chronic cluster headache?},
  author={Paola Torelli and Gian Camillo Manzoni},
  journal={Current Pain and Headache Reports},
  • P. Torelli, G. Manzoni
  • Published 1 February 2002
  • Medicine, Psychology
  • Current Pain and Headache Reports
Over the last few years, attention has increasingly been focused on the evolution of cluster headache over time. Predictive factors have been identified that are correlated with an increased risk of unfavorable evolution from the episodic form to the chronic form of cluster headache. Late onset, the presence of sporadic attacks, a high frequency of cluster periods, and short-lived duration of remission periods when the headache is still in its episodic form all correlate with a possible… 
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    Current pain and headache reports
  • 2003
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Cluster headache is a rare headache entity that predominantly occurs in younger males, characterized by sudden attacks of unilateral excruciating pain localized periorbitally, associated with ipsilateral autonomic symptoms.
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[Chronic cluster headache: course and outcome of treatment].
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