• Alan Chester Feitosa de Jesus, Hélio Araújo Oliveira, Marcelo Oliveira Ribeiro Paixão, Thalyta Porto Fraga, Felipe José N Barreto, and Marcelo Moraes Valença.
• Department of Medicine, Sergipe Headache Unit, University Hospital, Federal University of Sergipe, Aracaju, SE, Brazil. alanchester@uol.com.br
• Arq Neuropsiquiatr. 2009 Dec 1; 67 (4): 978-81.

BackgroundHemodialysis (HD)-related headaches are a common complaint of patients undergoing this procedure.ObjectiveTo determine the frequency and clinical characteristics of headache in patients undergoing HD and to discuss their diagnostic criteria.MethodThe present study assessed, in a prospective manner, a series of patients consulting at a HD center in Aracaju, Sergipe, Brazil, from November 2007 to January 2008. Only patients with HD-related headaches without previous history of primary headache were diagnosed as isolated HD headache (HDH).ResultsHeadache was reported by 76.1% of the patients studied. Prior to beginning dialysis, 47.9% had migraine without aura, 6.7% migraine with aura, 0.6% hemiplegic migraine, 5% episodic tension-type headache, and 2.5% migraine and tension-type headache. HDH was diagnosed in 6.7% of the patients, the most prevalent features being diffuse or temporal region location, bilateral headache, throbbing nature, and moderate severity. Seven patients with headaches between the sessions were not classified.ConclusionWhile the pathophysiology of HDH is unknown, to diagnose patients with HDH or other possible HD-related headaches remains a challenge.

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