==================================CMR41==================================
41.  Impedance Plethysmography or Rheography of brain and eye.
     Called also Rheoencephalography and Rheoophthalmography.
1
UI  - 86229234
AU  - Fehlinger R ; Mielke U ; Fauk D ; Seidel K
TI  - Rheographic indications for reduced cerebral vasoconstriction
      after oral magnesium medication in tetanic patients, a
      double-blind, placebo-controlled trial.
AB  - Volume and tonus oscillations of cerebral blood vessels are
      measurable with rheoencephalography. A lowered amplitude under
      resting conditions and an increased reactivity after
      hyperventilation (with pronounced and prolonged vasoconstriction)
      was found in tetanic patients, 360 mg Mg/day (as magnesium
      citrate tablets) was administered in 17 tetanic patients (A) and
      a placebo in 18 patients (B) in a double-blind,
      placebo-controlled trial. After 4 weeks the
      hyperventilation-induced vasoconstriction was reduced
      significantly within group A compared to group B.
MH  - Adolescence ; Adult ; Brain/*BLOOD SUPPLY ; Double-Blind Method ;
      Drug Evaluation ; Electrolytes/BLOOD ; Female ; Human ; Magnesium/
      BLOOD/*THERAPEUTIC USE ; Male ; Middle Age ; Plethysmography,
      Impedance ; Tetany/BLOOD/*DRUG THERAPY ; Vasoconstriction/*DRUG
      EFFECTS
SO  - Magnesium 1986;5(2):60-5