Niven /niv-en/ [2 sylls.] as a boys' name. Niven's root is Latin, and the name Niven means holy, sacred; little bone; servant of the saint's disciple. Niven is a variant transcription of Nevin (Latin).
The average life expectancy for someone with MS is 35 years after the symptoms begin. This represents a life expectancy of 95 percent of someone who does not have multiple sclerosis. Most people with the disease can function effectively; however, a rare form of acute MS can be fatal within weeks.
In others, it is a chronic relapsing or progressive disease, with an unpredictable clinical course that may span 10 to 20 years, during which time neurologic disability accumulates. This topic will discuss treatment of progressive forms of MS. The treatment of relapsing forms of MS is discussed separately. (See Disease-modifying treatment of relapsing-remitting multiple sclerosis in adults.) Other aspects of MS are reviewed elsewhere: â(See Pathogenesis and epidemiology of multiple sclerosis.)