What are the ICHD-3 diagnostic criteria for paroxysmal hemicrania (PH)?

Updated: Jun 12, 2019
  • Author: Monica Saini, MD, MBBS; more...
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In the current International Classification of Headache Disorders (ICHD-3), TACs include cluster headache (CH), paroxysmal hemicrania (PH), and the short-lasting unilateral neuralgiform headache attacks (SUNHAs). [4]

ICHD-3 diagnostic criteria for PH include the following:

A. At least 20 attacks of headache fulfilling criteria B–E

B. Severe unilateral orbital, supraorbital and/or temporal pain lasting 2–30 minutes

C. Either or both of the following:

  1. at least one of the following symptoms or signs, ipsilateral to the headache: a) conjunctival injection and/or lacrimation, b) nasal congestion and/or rhinorrhoea, c) eyelid oedema, d) forehead and facial sweating, e) miosis and/or ptosis
  2. a sense of restlessness or agitation

D. Occurring with a frequency of >5 per day

E. Prevented absolutely by therapeutic doses of indomethacin

F. Not better accounted for by another ICHD-3 diagnosis

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