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Myoclonus is an involuntary or a quick muscle jerk. Hiccups are sudden jerks that are considered a form of Myoclonus. This also includes the sleep starts that you may just experience before falling asleep.
However, these forms of the disease occur in healthy people and rarely lead to an issue.
Also, other forms of health conditions may take place due to the nervous system disorder like a metabolic condition, reaction to some medication, or epilepsy.
Generally, treating the cause behind the health condition might help control the symptoms. And if the cause is unknown, the treatment focuses on lessening the effects of the health condition on the quality of life.
Symptoms of Myoclonus
People with the health condition often mention their symptoms as shakes, spasms, or jerks that are
- Localized to all over the body or only one part
- Variable in frequency and intensity
- Sometimes severe enough to interfere with speaking, walking, or eating
Causes of Myoclonus
Myoclonus can be caused due to various underlying health issues.
Doctors often separate the myoclonus types based on their causes that help identify the treatments.
The types of the disease include the following categories
This form of the disease generally occurs in healthy people that rarely call for treatments. Examples of this type include
- Sleep starts
- Infant muscle twitching while sleeping
- Spasms or shakes because of exercise or anxiety
This type of disease occurs on its own. It is usually without any symptoms and even without being associated with any underlying disease.
The cause of such a type is unexplained, while in some cases, it is hereditary.
Such a type of disease usually occurs as a part of the epileptic disorder.
The symptomatic Myoclonus generally occurs as an outcome of some underlying medical condition. The examples of such underlying conditions include:
- Liver or kidney failure
- Spinal or head injury
- Drug poisoning
- Lipid storage disease
- Medication reaction
- Prolonged oxygen deprivation
- Autoimmune inflammatory condition
- Covid 19
- Metabolic disorders
Some nervous system conditions also result in secondary Myoclonus.
Diagnosis of MyoclonusIn order to diagnose Myoclonus, the doctor will start by reviewing the medical history and experienced symptoms. The doctor will also conduct a thorough physical examination. However, to determine the cause of the disease and rule out some other potential causes, the doctor may recommend several tests, including
ElectroencephalographyElectroencephalography or EEG generally records the brain’s electrical activity that may help determine where precisely in the brain the disease originates. In this procedure, the medical doctors generally attach the small electrodes to the scalp to uncover the abnormal electrical activities, if any.
ElectromyographyElectromyography or EMG helps determine the disease origin where the doctors put EMG surface electrodes on several muscles, specifically on the ones involved in jerking.
Evoked Potential StudiesEvoked potential studies include the tests that measure the brain’s electrical activity, spinal cord, and brainstem, which are triggered by sound, sight, touch, and other stimuli.
Magnetic Resonance ImagingMagnetic Resonance Imaging or MRI is generally used to verify the structural issues or tumors inside the spinal cord or brain that may cause the myoclonus symptoms.
Laboratory TestsThe doctors may also suggest genetic testing to determine the possible causes of illness. This includes the testing for
- Metabolic disorders
- Toxins or drugs
- Autoimmune disease
- Liver or kidney disease
Treatment of MyoclonusThe illness’s treatment is considered most effective when the reversible underlying cause can be found and, luckily, that can be treated. But unfortunately, most of the time, the underlying cause cannot be eliminated or cured. And therefore, the treatment is intended at easing the myoclonus symptoms. There are no specific drugs that can treat the disease, but several disease treatments can relieve the symptoms.
Medications for Treating MyoclonusThe commonly prescribed medications include:
TranquilizersTranquilizers are the most common drug used to treat myoclonus symptoms. Clonazepam is a well-known drug that needs to be taken under doctors’ supervision as it may cause side effects.
AnticonvulsantsAnticonvulsants are the drugs that are generally used to control epileptic seizures have proved helpful in dealing with the health condition’s symptoms.
OnabotulinumtoxinA injection is considered a helpful one in treating several myoclonus forms. Especially where only a single area is affected. It blocks the liberation of the chemical messenger that is responsible for triggering muscle contractions.
SurgeriesIf the symptoms are caused due to a lesion in the brain or spinal cord, then surgery is a reliable option. Deep brain stimulation has been tried on patients with the disease. However, more research is in the continuous phase.
What questions you must ask your doctor?
- What can most likely cause the symptoms?
- What tests must be done?
- What is the best course of action?
- Any restrictions that must be followed?
- Is the condition likely chronic or temporary?
- Any other queries?
What your doctor may ask?
- When did you first experience the symptoms?
- Do you have a family history of epilepsy or Myoclonus?
- Have you been exposed to chemicals or drugs?
- How severe are the symptoms?
- Have your symptoms been occasional or continuous?
- Does anything that you do improve your symptoms?
Bottom Line!Myoclonus refers to a sudden muscle spasm where a person experiences an involuntary movement that cannot be controlled or stopped. The health condition may involve a single muscle or a group of muscles. However, to deal with the health condition appropriately, you must consult a medical doctor.
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