Optimizing outcomes in multiple sclerosis: consensus guidelines for the diagnosis and treatment of multiple sclerosis in Latin America.

Objective: The prevalence of multiple sclerosis (MS) in Latin America varies across different studies but an intermediate risk and increased frequency of the disease have been reported in recent years. The circumstances of Latin American countries are different from those of Europe and North America, both in terms of differential diagnoses and disease management.

Methods: An online survey on MS was sent to 855 neurologists in nine Latin American countries.