title: Serum ionized magnesium in post-traumatic headaches.
abstract: The objective of this study was to determine the values of serum ionized magnesium, total magnesium, and ionized calcium/ionized magnesium ratios in children with headaches. One hundred thirty-five children with primary complaints of headaches were classified according to the criteria of the International Headache Society. Blood samples were obtained and tested for ionized magnesium (IMg(2+)), total magnesium, ionized calcium (ICa(2+)), and pH. The ICa(2+)/IMg(2+) ratio was calculated. Nine children were given a diagnosis of post-traumatic headache. Six of them had statistically significant (P <.05) lowered IMg(2+) levels and high ICa(2+)/IMg(2+) ratios. Abnormalities in serum IMg(2+) concentrations and ICa(2+)/IMg(2+) ratios were found in children with post-traumatic headaches, but total magnesium levels were normal.
authors.affiliation: Division of Pediatric Neurology, State University of New York-Health Sciences Center, Brooklyn, New York, USA.
authors.forename: J C
authors.initials: JC
authors.lastname: Marcus
authors.forename: B T
authors.initials: BT
authors.lastname: Altura
authors.forename: B M
authors.initials: BM
authors.lastname: Altura
mesh_terms: D000293:Adolescent; D002118:Calcium / Q000097:blood; D002648:Child; D005260:Female; D006261:Headache / Q000097:blood* / Q000145:classification / Q000209:etiology; D006801:Humans; D008274:Magnesium / Q000097:blood*; D008297:Male; D012016:Reference Values; D014947:Wounds and Injuries / Q000150:complications
chemical_list: D008274:Magnesium; D002118:Calcium