This is a good summary article from Neurology Advisor (neurologyadvisor.com) in mid-November 2017 about cognitive impairment in multiple system atrophy (MSA). Here’s a link to the full article:
This was the most interesting excerpt to me:
A 2014 position paper published in Movement Disorders by the MODIMSA Study Group observed that the shorter survival associated with MSA may mask a potentially higher rate of cognitive decline, as the incidence of CI in patients who live longer than 8 years is nearly 50%. “If the disease did not have such a rapid course, the cumulative prevalence of dementia in MSA would be similar to that of Parkinson disease,” they wrote.
The full article is worth reading!