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Diseases

Genetic and Rare Diseases Information Center (GARD)

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Myotonic dystrophy type 2


Other Names for this Disease

  • DM2
  • Dystrophia myotonica type 2
  • Myotonic myopathy, proximal
  • PROMM
  • Proximal myotonic myopathy
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Prognosis

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What is the long-term outlook for people with myotonic dystrophy type 2?

In general, people with myotonic dystrophy type 2 have a better long-term outlook (prognosis) than those with type 1. Symptoms are usually relatively mild. While the rate of progression can vary among affected people, symptoms generally progress slowly.[1] While mobility may be impaired at an earlier age, the ability to walk is often retained until around 60 years of age.[2][1]

The prognosis for affected people can depend on the extent of heart (cardiac) involvement.[2] While definitive information is not available, it appears there is relatively little shortening of the lifespan in people with myotonic dystrophy type 2.[3]
Last updated: 2/11/2014

References
  1. Myotonic muscular dystrophy. Muscular Dystrophy Association. http://mda.org/disease/myotonic-muscular-dystrophy/overview. Accessed 2/10/2014.
  2. Fran├žoise Bouhour. Proximal Myotonic Myopathy. Orphanet. July, 2007; http://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=EN&Expert=606. Accessed 2/10/2014.
  3. David A Chad and Basil T Darras. Myotonic dystrophy: Prognosis and management. UpToDate. Waltham, MA: UpToDate; January, 2014; Accessed 2/10/2014.


Other Names for this Disease
  • DM2
  • Dystrophia myotonica type 2
  • Myotonic myopathy, proximal
  • PROMM
  • Proximal myotonic myopathy
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.