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Condition

Acute Cerebellar Ataxia

Symptoms, Doctors, Treatments, Research & More

Condition 101

What is the definition of Acute Cerebellar Ataxia?

Acute cerebellar ataxia is sudden, uncoordinated muscle movement due to disease or injury to the cerebellum. This is the area in the brain that controls muscle movement. Ataxia means loss of muscle coordination, especially of the hands and legs.

What are the alternative names for Acute Cerebellar Ataxia?

Cerebellar ataxia; Ataxia - acute cerebellar; Cerebellitis; Post-varicella acute cerebellar ataxia; PVACA

What are the causes for Acute Cerebellar Ataxia?

Acute cerebellar ataxia in children, particularly younger than age 3, may occur several days or weeks after an illness caused by a virus.

Viral infections that may cause this include chickenpox, Coxsackie disease, Epstein-Barr, echovirus, among others.

Other causes of acute cerebellar ataxia include:

  • Abscess of the cerebellum
  • Alcohol, medicines, and insecticides, and illicit drugs
  • Bleeding into the cerebellum
  • Multiple sclerosis
  • Strokes of the cerebellum
  • Vaccination
  • Trauma to head and neck
  • Certain diseases associated with some cancers (paraneoplastic disorders)

What are the symptoms for Acute Cerebellar Ataxia?

Ataxia may affect movement of the middle part of the body from the neck to the hip area (the trunk) or the arms and legs (limbs).

When the person is sitting, the body may move side-to-side, back-to-front, or both. Then the body quickly moves back to an upright position.

When a person with ataxia of the arms reaches for an object, the hand may sway back and forth.

Common symptoms of ataxia include:

  • Clumsy speech pattern (dysarthria)
  • Repetitive eye movements (nystagmus)
  • Uncoordinated eye movements
  • Walking problems (unsteady gait) that can lead to falls

What are the current treatments for Acute Cerebellar Ataxia?

Treatment depends on the cause:

  • If the acute cerebellar ataxia is due to bleeding, surgery may be needed.
  • For a stroke, medicine to thin the blood can be given.
  • Infections may need to be treated with antibiotics or antivirals.
  • Corticosteroids may be needed for swelling (inflammation) of the cerebellum (such as from multiple sclerosis).
  • Cerebellar ataxia caused by a recent viral infection may not need treatment.

What is the outlook (prognosis) for Acute Cerebellar Ataxia?

People whose condition was caused by a recent viral infection should make a full recovery without treatment in a few months. Strokes, bleeding, or infections may cause permanent symptoms.

What are the possible complications for Acute Cerebellar Ataxia?

In rare cases, movement or behavioral disorders may persist.

When should I contact a medical professional for Acute Cerebellar Ataxia?

Call your provider if any symptoms of ataxia appear.

REFERENCES

Mink JW. Movement disorders. In: Kliegman RM, Stanton BF, St. Geme JW, Schor NF, eds. Nelson Textbook of Pediatrics. 20th ed. Philadelphia, PA: Elsevier; 2016:chap 597.

Subramony SH, Xia G. Disorders of the cerebellum, including the degenerative ataxias. In: Daroff RB, Jankovic J, Mazziotta JC, Pomeroy SL, eds. Bradley's Neurology in Clinical Practice. 7th ed. Philadelphia, PA: Elsevier; 2016:chap 97.

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