Disease Information for Myoclonic encephalopathy/childhood

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Clinical Manifestations
Signs & Symptoms
Episodic vomiting
Abnormal movements/involuntary
Action Tremor
Ataxia
Delayed speech/language development
Involuntary Leg Movement Standing
Jerky movements
Myoclonus/Myoclonic jerks on exam
Nocturnal Myoclonus
Nystagmus
Polymyoclonus
Progressive neurological disorder/signs
Staggering Gait
Tremor
Tremor in Children
Tremor,intention
Unable to tandem walk/straight line
Delayed speech development/impediment
Eye myoclonus/opsoclonus
True Vertigo Sign Confirmed
Clinical Presentation & Variations
Presentation/Acute encephalopathy Child
Presentation/Ataxia in a Child Acute
Presents/Myoclonus Epilepsy Mental Decline <20
Disease Progression
Course/Chronic disorder
Course/Chronic only
Course/Progressive
Onset ages 2 to 3 yrs
Demographics & Risk Factors
Population Group
Child
Population/Pediatrics population
Sex & Age Groups
Population/Child
Population/Child-Infant Only
Population/Children/all
Associated Diseases & Rule outs
Associated Disease & Complications
Cerebellar ataxia
CNS disease/involvement
Coma in Children
Coma/Unconscious
Congenital Nystagmus
Cytochrome C Oxidase Deficiency/Mitochondrial
Encephalopathy/CNS effect
Mitochondrial myopathy
Myoclonic encephalopathy/childhood
Neurodevelopmental disorders
Ataxia Disorder
Disease Mechanism & Classification
Class
CLASS/Primary organ/system disorder (ex)
CLASS/Neurologic (category)
Drugs
Pathophysiology/Inherited ONLY from the mother
Pathophysiology
Pathophysiology/Genomic indentifiers (polymorphism/snip/mutations)
Pathophysiology/Maternal inheritance
Pathophysiology/Mitochondrial oxidative respiratory chain defect
Pathophysiology/Mitochondrial/ova cyoplasm heredity
Pathophysiology/Non-mendelian maternal heredity
Pathophysiology/Neurologic degenerative disorder (ex)
Process
PROCESS/Congenital/developmental (category)
PROCESS/Hereditary mitochondrial disorder (ex)
PROCESS/Hereditofamilial (category)
PROCESS/Idiopathic/unclassified/unknown (category)
PROCESS/INCIDENCE/Rare disease (ex)
PROCESS/Developmental degenerative neurological disorder (ex)
PROCESS/Mitochondrial disorders (ex)
Synonyms
Synonym
Kinsbourne Syndrome, Myoclonic encephalopathy of infants, Opsoclonus myoclonus, Synonym/Opsoclonus-myoclonus encephalopathy
Definition

Myoclonus, General; Subdivisions:Action Myoclonus; Arrhythmic Myoclonus; Dyssynergia Cerebellaris Myoclonica; Familial Arrhythmic Myoclonus; Hereditary Essential Myoclonus; Infantile Myoclonic Encephalopathy and Polymyoclonia; Intention Myoclonus; 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; Myoclonus is a neurological movement disorder characterized by sudden, involuntary contractions of skeletal muscles; Based on the various symptoms, there are three types of Myoclonus: Intention Myoclonus, Rhythmical Myoclonus, and Arrhythmic Myoclonus;

Intention Myoclonus (Action Myoclonus) includes Postanoxic Myoclonus and Postencephalitic Myoclonus; Arrhythmic Myoclonus (stimulus-sensitive myoclonus) includes: Hereditary Essential Myoclonus (paramyoclonus multiplex), Hyperexplexia (Essential Startle Disease), Opsoclonus (Infantile Myoclonic Encephalopathy, Polymyoclonia Familial Arrhythmic Myoclonus), Progressive Myoclonic Epilepsy, Ramsay Hunt Syndrome (Dyssynergia Cerebellaris Myoclonia);

Rhythmical Myoclonus includes (Segmental Myoclonus), Nocturnal Myoclonus, Palatal Myoclonus, and Respiratory Myoclonus; ----------------[NORD website 2006]------------

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External Links Related to Myoclonic encephalopathy/childhood
Google
Wikipedia
Merck
Images
PubMed (National Library of Medicine)
NGC (National Guideline Clearinghouse)
Medscape (eMedicine)
Harrison's Online (accessmedicine)
NEJM (The New England Journal of Medicine)
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