of this disorder. Anti-convulsant medication may control seizure episodes. Physical therapists can assist an affected individual to build muscle strength and coordination. Prognosis The life expectancy for individuals with Salla disease is between the ages of 50 and 60. See also Infantile free sialic acid storage disease (ISSD) References External links GeneReview/NIH/UW entry on Free Sialic Acid Storage Disorders Autosomal recessive disorders Rare diseases Glycoprotein metabolism disorders Membrane transport protein disorders