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  2. The International Classification of Headache Disorders (ICHD) is a detailed hierarchical classification of all headache-related disorders published by the International Headache Society. [1] It is considered the official classification of headaches by the World Health Organization , and, in 1992, was incorporated into the 10th edition of their ...

  3. ICHD classification and diagnosis of migraine - Wikipedia

    en.wikipedia.org/wiki/ICHD_classification_and...

    Under the category of headache attributed to a substance or its withdrawal, the ICHD specifies the diagnostic criteria for oestrogen-withdrawal headache (8.4.3, G44.83 and Y42.4), and suggests that both that diagnosis and one of the menstrual migraine diagnoses be used in case of migraines related to oestrogen withdrawal occurring mainly at ...

  4. Intractable pain - Wikipedia

    en.wikipedia.org/wiki/Intractable_pain

    Intractable pain, also called intractable pain syndrome (IPS), is a severe, constant, relentless, and debilitating pain that is not curable by any known means and which causes a house-bound or bed-bound state and early death if not adequately treated, usually with opioids and/or interventional procedures. It is not relieved by ordinary medical ...

  5. Trigeminal autonomic cephalgia - Wikipedia

    en.wikipedia.org/wiki/Trigeminal_autonomic_cephalgia

    Trigeminal autonomic cephalalgia (TAC) refers to a group of primary headaches that occurs with pain on one side of the head in the trigeminal nerve area and symptoms in autonomic systems on the same side, such as eye watering and redness or drooping eyelids. [1] [2]

  6. Hemicrania continua - Wikipedia

    en.wikipedia.org/wiki/Hemicrania_continua

    In hemicrania continua, basal pain is a dull aching pressure similar to that of TTHs (Tension-Type Headaches) that occurs nearly always on the same side of the head and face. Pain ranges from mild to severe and is characterized by fluctuations that increase in intensity up to three to five times per 24-hour cycle.

  7. Persistent aura without infarction - Wikipedia

    en.wikipedia.org/wiki/Persistent_aura_without...

    Persistent aura without infarction (PAWOI) is a rare and seemingly benign [1] condition, first described in case reports in 1982 as "prolonged/persistent migraine aura status", [2] and in 2000 as "migraine aura status", [3] [4] that is not yet fully understood.

  8. Chronic paroxysmal hemicrania - Wikipedia

    en.wikipedia.org/wiki/Chronic_paroxysmal_hemicrania

    CPH headaches are treated through the use of non-steroidal anti-inflammatory drugs, with indomethacin found to be especially effective in eliminating symptoms. Paroxysmal hemicrania is classified by the characteristic (high) frequency and (short) duration of attacks experienced by patients that is somewhat similar to cluster headaches , despite ...

  9. Migraine - Wikipedia

    en.wikipedia.org/wiki/Migraine

    Migraine (UK: / ˈ m iː ɡ r eɪ n /, US: / ˈ m aɪ-/) [1] [2] is a genetically-influenced complex neurological disorder characterized by episodes of moderate-to-severe headache, most often unilateral and generally associated with nausea and light and sound sensitivity.