[MIM 611 718, 613 882]

Extremely rare: two cases ! Mg plasma concentration < 0.7 mmol/L. Autosomal recessive transmission. Probably due to a lack of renal reabsorption of the Mg.

Anesthetic implications: 

monitoring of electrolytes and volemia; IV MgSO4 administration potentiates the action of the  non-depolarizing myorelaxants and has a vasodilating effect

References : 

-         Knoers N. 
Hypomagnésémies héréditaires. 
In Actualités Néphrologiques 2000, Flammarion Médecine-Sciences, p 301-11.

Updated: March  2019