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Myoclonic dystonia or Myoclonus dystonia syndrome is a rare movement disorder that induces spontaneous muscle contraction causing abnormal posture. The prevalence of myoclonus dystonia has not been reported, however, this disorder falls under the umbrella of movement disorders which affect thousands worldwide. [1]
Treatment of myoclonus focuses on medications that may help reduce symptoms. Drugs used include sodium valproate, clonazepam, the anticonvulsant levetiracetam, and piracetam. [8] Dosages of clonazepam usually are increased gradually until the patient improves or side effects become harmful. Drowsiness and loss of coordination are common side ...
Asterixis (more colloquially referred to as flapping tremor) is not actually a tremor, but rather a negative myoclonus.This movement disorder is characterized by an inability to maintain a position, which is demonstrated by jerking movements of the outstretched hands when bent upward at the wrist (which can be similar to a bird flapping its wings, hence the name "flapping tremor").
Causes painful defecation, constipation; may be complicated by encopresis or fecal incontinence. Cervical dystonia (spasmodic torticollis) muscles of the neck: Causes the head to rotate to one side, to pull down towards the chest, or back, or a combination of these postures. Blepharospasm: muscles around the eyes
The prognosis depends largely on the worsening symptoms and failure to respond to treatment. There is no current cure for PME and treatment focuses on managing myoclonus and seizures through antiepileptic medication (AED). [3] [2] The age of onset depends on the specific PME but PME can affect people of all ages.
In clinical practice, it's important to differentiate FAME from other tremor-related conditions like essential tremor. Early on, patients without significant myoclonus or seizures might be misdiagnosed and receive incorrect treatment. Factors like unresponsiveness to beta-blockers and absence of certain tremors can help with the diagnosis.
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The causes of MERRF syndrome are difficult to determine, but because it is a mitochondrial disorder, it can be caused by the mutation of nuclear DNA or mitochondrial DNA. [3] The classification of this disease varies from patient to patient, since many individuals do not fall into one specific disease category.