Chronic paroxysmal hemicrania Chronic paroxysmal hemicrania Chronic paroxysmal hemicrania (CPH), also known as Sjaastad syndrome, is a severe debilitating unilateral headache usually affecting the area around the eye. It normally consists of multiple severe, yet short, headache attacks affecting only one side of the cranium. It is more commonly diagnosed in women than in men, but, unlike a migraine, has no neurological symptoms associated with it. CPH headaches are treated through the use of non-steroidal anti-inflammatory drugs, with indomethacin found to be usually effective in eliminating symptoms. Paroxysmal hemicrania is classified by the frequency and duration of attacks experienced by patients. Episodic paroxysmal
Chronic paroxysmal hemicrania disease with symptoms lasting for longer than a year, either without remission or with remissions that last less than a month. In order to be diagnosed with CPH, a patient needs to have had at least 20 attacks filling the following criteria: In addition, diagnosis of CPH requires that neuropathy of the supraorbital area in the temporal branch of the facial nerve be ruled out. Though outwardly similar to cluster headaches, chronic paroxysmal hemicrania is rather different, and the two headaches are not a subset of one or the other. Key differences include: A ten-patient study conducted by Pareja et