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Multiple sclerosis - Prognosis

Description

An in-depth report on the causes, diagnosis, and treatment of MS.

Prognosis:

Multiple sclerosis is not a fatal disease. Except in rare cases of severe disease, most people with multiple sclerosis have a normal or near-normal life span and usually die from the same conditions (heart disease, cancer) that affect the general population. Still, MS symptoms can negatively affect quality of life. Suicide rates among patients with MS are higher than average.

The majority of patients with MS do not become severely disabled. Twenty years after diagnosis, about two-thirds of people with MS remain ambulatory and do not need a wheelchair, although many of them may use a cane or crutches for walking assistance. Some patients use an electric scooter or wheelchair to help cope with fatigue or balance problems.

The severity of the disease, and how the disease progresses, varies widely from patient to patient and is unpredictable. About 20% of patients remain asymptomatic or become only mildly symptomatic after an initial clinical event. Another 20% experience a rapidly progressive condition. Most patients, however, will have some degree of disease progression.

Women tend to have a better outlook than men. Factors that determine a higher risk for a severe condition include:

Age over 40 years at the time of onset of symptoms
Initial symptoms that affect motor control, mental functioning, or urinary control
Initial symptoms that affect multiple regions of the body
Attacks in the first years that are frequent, or a short time between the first two attacks
Incomplete remissions
Rapid progression to disability
MS that is progressive from the beginning or becomes progressive shortly after the onset

Resources

www.ninds.nih.gov -- National Institute of Neurological Disorders and Stroke
www.aan.com -- American Academy of Neurology
www.msassociation.org -- Multiple Sclerosis Association of America
www.nationalmssociety.org -- National Multiple Sclerosis Society
www.msfacts.org -- Multiple Sclerosis Foundation
www.abledata.com -- National database of assistive devices and rehabilitation equipment

References

Calabresi P. Multiple sclerosis and demyelinating conditions of the central nervous system. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 436.

Correale J, Fiol M, Gilmore W. The risk of relapses in multiple sclerosis during systemic infections. Neurology. 2006 Aug 22;67(4):652-9. Epub 2006 Jul 26.

Farinotti M, Simi S, Di Pietrantonj C, McDowell N, Brait L, Lupo D, Filippini G. Dietary interventions for multiple sclerosis. Cochrane Database Syst Rev. 2007 Jan 24;(1):CD004192.

Goodin DS, Cohen BA, O'Connor P, Kappos L, Stevens JC; Therapeutics and Technology Assessment Subcommittee of the American Academy of Neurology. Assessment: the use of natalizumab (Tysabri) for the treatment of multiple sclerosis (an evidence-based review): report of the Therapeutics and Technology Assessment Subcommittee of the American Academy of Neurology. Neurology. 2008 Sep 2;71(10):766-73

International Multiple Sclerosis Genetics Consortium, Hafler DA, Compston A, Sawcer S,Lander ES, Daly MJ, et al. Risk alleles for multiple sclerosis identified by a genomewide study. N Engl J Med. 2007 Aug 30;357(9):851-62. Epub 2007 Jul 29.

Kappos L, Freedman MS, Polman CH, Edan G, Hartung HP, Miller DH, et al. Effect of early versus delayed interferon beta-1b treatment on disability after a first clinical event suggestive of multiple sclerosis: a 3-year follow-up analysis of the BENEFIT study. Lancet. 2007 Aug 4;370(9585):389-97.

Khan F, Ng L, Turner-Stokes L. Effectiveness of vocational rehabilitation intervention on the return to work and employment of persons with multiple sclerosis. Cochrane Database Syst Rev. 2009 Jan 21;(1):CD007256002819.

Lovera J, Bagert B, Smoot K, Morris CD, Frank R, Bogardus K, et al. Ginkgo biloba for the improvement of cognitive performance in multiple sclerosis: a randomized, placebo-controlled trial. Mult Scler. 2007 Apr;13(3):376-85. Epub 2007 Jan 29.

Multiple Sclerosis Therapy Consensus Group (MSTCG), Wiendl H, Toyka KV, Rieckmann P, Gold R, Hartung HP, et al. Basic and escalating immunomodulatory treatments in multiple sclerosis: current therapeutic recommendations. J Neurol. 2008 Oct;255(10):1449-63. Epub 2008 Oct 29.

Prakash RS, Snook EM, Lewis JM, Motl RW, Kramer AF. Cognitive impairments in relapsing-remitting multiple sclerosis: a meta-analysis. Mult Scler. 2008 Nov;14(9):1250-61. Epub 2008 Aug 13.

Ransohoff RM. Natalizumab for multiple sclerosis. N Engl J Med. 2007 Jun 21;356(25):2622-9.

Rojas JI, Romano M, Ciapponi A, Patrucco L, Cristiano E. Interferon beta for primary progressive multiple sclerosis. Cochrane Database Syst Rev. 2009 Jan 21;(1):CD006643.

Schippling S, Heesen C, Zander A, Martin R. Stem cell transplantation in multiple sclerosis. J Neurol. 2008 Dec;255 Suppl 6:43-7.

Wiendl H, Hohlfeld R. Multiple sclerosis therapeutics: unexpected outcomes clouding undisputed successes. Neurology. 2009 Mar 17;72(11):1008-15.

Reviewed last on: 6/23/2009
Harvey Simon, MD, Editor-in-Chief, Associate Professor of Medicine, Harvard Medical School; Physician, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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