Amyotrophic lateral sclerosis: update for family physicians.
OBJECTIVE
To discuss the epidemiology, pathogenesis, diagnosis, expected course, prognosis, and treatment of amyotrophic lateral sclerosis (ALS), a degenerative disorder of the nervous system associated with progressive weakness.


METHODS
PubMed and the Cochrane Database of Systematic Reviews were searched using the MeSH headings "amyotrophic lateral sclerosis," "therapy," "epidemiology," and "etiology." Articles containing the best available evidence were reviewed. Most provided level II and III evidence. There were some level I drug trials.


RESULTS
Amyotrophic lateral sclerosis is associated with progressive dysarthria, dysphagia, and weakness in the extremities. Diagnosis is based on physical examination, electrophysiology, and excluding other confounding conditions. There is no cure for this devastating disorder. Certain treatments, however, can improve survival and quality of life.


CONCLUSIONS
Because ALS is a complex disease, care of ALS patients is best provided at multidisciplinary clinics that specialize in managing patients with this disorder.
Shoesmith
Christen L
CL
London Health Sciences Centre, Ontario, Canada.
Strong
Michael J
MJ
D000690:Amyotrophic Lateral Sclerosis / Q000175:diagnosis* / Q000628:therapy*; D000075202:Contraindications; D003937:Diagnosis, Differential; D018450:Disease Progression; D004750:Enteral Nutrition; D005194:Family Practice; D006801:Humans; D015596:Nutrition Assessment; D011379:Prognosis