Diseases & Conditions


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Myoclonus, General


Synonyms of Myoclonus, General

    Disorder Subdivisions

    • Action Myoclonus
    • Arrhythmic Myoclonus
    • Cortical Myoclonus
    • Dyssynergia Cerebellaris Myoclonica
    • Familial Arrhythmic Myoclonus
    • Hereditary Essential Myoclonus
    • Infantile Myoclonic Encephalopathy and Polymyoclonia
    • Intention Myoclonus
    • Lance-Adams Syndrome
    • Myoclonic Epilepsy
    • Nocturnal Myoclonus
    • Opsoclonus
    • Palatal Myoclonus
    • Paramyoclonus Multiple
    • Pathological Myoclonus
    • Postanoxic Intention Myoclonus
    • Postencephalitic Intention Myoclonus
    • Progressive Myoclonic Epilepsy
    • Respiratory Myoclonus
    • Rhythmical Myoclonus
    • Segmental Myoclonus
    • Stimulus-Sensitive Myoclonus


    General Discussion
    Myoclonus is the term used to describe the sudden, involuntary jerking of a muscle or group of muscles caused by muscle contractions (positive myoclonus) or muscle relaxation (negative myoclonus). The twitching or jerking of muscles cannot be controlled by the person experiencing it. Myoclonic jerks may occur infrequently or many times a minute. They sometimes occur in response to an external event or when a person attempts to make a movement. By itself, myoclonus may be seen as a symptom rather than a disease. To some degree, it may occur occasionally to otherwise healthy people. (For instance, hiccups may be considered a type of myoclonus.) In severe cases, it can interfere with movement control and balance, and limit various everyday activities such as eating or talking.

    Organizations related to Myoclonus, General
    • Epilepsy Canada
      1470 Peel Street
      Quebec None H3A 1T1
      Phone #: 514-845-7855
      800 #: 877-734-0873
      e-mail: epilepsy@epilepsy.ca
      Home page: http://www.epilepsy.ca
    • Epilepsy Foundation
      4351 Garden City Drive
      Landover MD 20785
      Phone #: 301-459-3700
      800 #: 800-332-1000
      e-mail: postmaster@efa.org
      Home page: http://www.epilepsyfoundation.org
    • MUMS (Mothers United for Moral Support, Inc) National Parent-to-Parent Network
      150 Custer Court
      Green Bay WI 54301-1243
      Phone #: 920-336-5333
      800 #: 877-336-5333
      e-mail: mums@netnet.net
      Home page: http://www.netnet.net/mums/
    • Madisons Foundation
      PO Box 241956
      Los Angeles CA 90024
      Phone #: 310-264-0826
      800 #: N/A
      e-mail: getinfo@madisonsfoundation.org
      Home page: http://www.madisonsfoundation.org
    • March of Dimes Birth Defects Foundation
      1275 Mamaroneck Avenue
      White Plains NY 10605
      Phone #: 914-428-7100
      800 #: 888-663-4637
      e-mail: Askus@marchofdimes.com
      Home page: http://www.marchofdimes.com
    • Moving Forward
      2934 Glenmore Avenue
      Kettering OH 45409
      Phone #: 937-293-0409
      800 #: --
      e-mail: N/A
      Home page: N/A
    • National Institute of Neurological Disorders and Stroke (NINDS)
      31 Center Drive
      Bethesda MD 20892-2540
      Phone #: 301-496-5751
      800 #: 800-352-9424
      e-mail: braininfo@ninds.nih.gov
      Home page: http://www.ninds.nih.gov/
    • National Pediatric Myoclonus Center
      SIU School of Medicine
      Springfield IL 62794-9643
      Phone #: 217-545-7635
      800 #: --
      e-mail: oms@siumed.edu
      Home page: http://www.omsusa.org
    • National Sleep Foundation
      1522 K Street
      Washington D.C. 20005
      Phone #: 202-347-3471
      800 #: --
      e-mail: nsf@sleepfoundation.org
      Home page: http://www.sleepfoundation.org
    • Opsoclonus-Myoclonus Support Network, Inc.
      4616 Brookwood St. NE
      Albuquerque NM 87109
      Phone #: 505-881-2285
      800 #: --
      e-mail: sandragreenberg@hotmail.com
      Home page: www.geocities.com/opso-myoclonus
    • WE MOVE (Worldwide Education and Awareness for Movement Disorders)
      204 West 84th Street
      New York NY 10024
      Phone #: 212-875-8312
      800 #: N/A
      e-mail: wemove@wemove.org
      Home page: http://www.wemove.org



    For a Complete Report

    This is an abstract of a report from the National Organization for Rare Disorders, Inc. ? (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html