title: Headache in type I Chiari malformation.
abstract: We analyzed the headaches in 50 patients with type I Chiari malformation. Of the 50, 14 (28%) had a rather specific, usually protracted, suboccipital-occipital headache of variable quality and duration that was aggravated by Valsalva's maneuver, effort, cough, or postural changes and relieved by occipital-suboccipital craniectomy. Only the degree of tonsillar herniation significantly correlated with the presence of this pain. Both migraine and tension-type headache occurred with the expected frequency for the general population.
authors.affiliation: Department of Medicine, Universitary Hospital Marqués de Valdecilla, Santander, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Pascual
authors.forename: A
authors.initials: A
authors.lastname: Oterino
authors.forename: J
authors.initials: J
authors.lastname: Berciano
mesh_terms: D000293:Adolescent; D000328:Adult; D001139:Arnold-Chiari Malformation / Q000150:complications* / Q000601:surgery; D005260:Female; D006261:Headache / Q000209:etiology* / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D007796:Laminectomy; D008297:Male; D008875:Middle Aged; D009777:Occipital Bone / Q000473:pathology; D012886:Skull / Q000601:surgery; D013595:Syringomyelia / Q000150:complications