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Diseases » Myoclonus » Hidden Causes

Misdiagnosis of Hidden Causes of Myoclonus

Underlying conditions list:

The list of possible underlying conditions mentioned in various sources for Myoclonus includes:

Myoclonus as a complication:

Other conditions that might have Myoclonus as a complication might be potential underlying conditions. The list of conditions listing Myoclonus as a complication includes:

Myoclonus as a symptom:

Conditions listing Myoclonus as a symptom may also be potential underlying conditions.

For a more detailed analysis of Myoclonus as a symptom, including causes, drug side effect causes, and drug interaction causes, please see our Symptom Center information for Myoclonus.

Discussion of underlying conditions of Myoclonus:

NINDS Myoclonus Information Page: NINDS (Excerpt)

Most often myoclonus is one of several symptoms in a wide variety of nervous system disorders such as multiple sclerosis, Parkinson's disease, Alzheimer's disease, or Creutzfeldt-Jakob disease. Familiar examples of normal myoclonus include hiccups, and jerks or "sleep starts" that some people experience while drifting off to sleep. Severe cases of pathologic myoclonus can distort movement and severely limit a person's ability to eat, talk, and walk. Myoclonic jerks commonly occur in individuals with epilepsy. (Source: excerpt from NINDS Myoclonus Information Page: NINDS)

Myoclonus Fact Sheet: NINDS (Excerpt)

Myoclonus may develop in response to infection, head or spinal cord injury, stroke, brain tumors, kidney or liver failure, lipid storage disease, chemical or drug poisoning, or other disorders. Prolonged oxygen deprivation to the brain, called hypoxia, may result in posthypoxic myoclonus. Myoclonus can occur by itself, but most often it is one of several symptoms associated with a wide variety of nervous system disorders. For example, myoclonic jerking may develop in patients with multiple sclerosis, Parkinson's disease, Alzheimer's disease, or Creutzfeldt-Jakob disease. Myoclonic jerks commonly occur in persons with epilepsy, a disorder in which the electrical activity in the brain becomes disordered leading to seizures. (Source: excerpt from Myoclonus Fact Sheet: NINDS)

About underlying conditions:

With a diagnosis of Myoclonus, it is important to consider whether there is an underlying condition causing Myoclonus. These are other medical conditions that may possibly cause Myoclonus. For general information on this form of misdiagnosis, see Underlying Condition Misdiagnosis or Overview of Misdiagnosis.


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