What is the outlook for Spinal Muscular Atrophy ?
The prognosis is poor for babies with SMA Type I. Most die within the first two years. For children with SMA Type II, the prognosis for life expectancy or for independent standing or walking roughly correlates with how old they are when they first begin to experience symptoms - older children tend to have less severe symptoms Life expectancy is reduced but some individuals live into adolescence or young adulthood. Individuals with SMA type III may be prone to respiratory infections but with care may have a normal lifespan.