International Headache Society (IHS)diagnostic criteria for cluster headaches
Last edited 12/2018 and last reviewed 03/2022
International Headache Society (IHS)diagnostic criteria for cluster headaches
Diagnostic criteria:
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A at least five attacks fulfilling criteria B-D
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B severe or very severe unilateral orbital, supraorbital and/or temporal pain lasting 15-180 minutes (when untreated)
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C either or both of the following:
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1) at least one of the following symptoms or signs, ipsilateral to the headache:
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conjunctival injection and/or lacrimation
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nasal congestion and/or rhinorrhoea
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eyelid oedema
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forehead and facial sweating
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miosis and/or ptosis
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2) a sense of restlessness or agitation
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D occurring with a frequency between one every other day and 8 per day
- E not better accounted for by another ICHD-3 diagnosis (1).