Acute flaccid myelitis

 

 

Overview

Acute flaccid myelitis (AFM) is a rare but serious condition that affects the spinal cord. It can cause sudden weakness in the arms or legs, loss of muscle tone, and loss of reflexes. The condition affects young children.

 

Most children who develop acute flaccid myelitis have a mild respiratory illness or fever caused by a viral infection about one to four weeks before experiencing symptoms of AFM.

 

If you or your child develops symptoms of acute flaccid myelitis, seek immediate medical care. Symptoms can progress rapidly. Hospitalization is needed and sometimes a ventilator is required for breathing support.

 

Since experts began tracking acute flaccid myelitis following initial clusters in 2014, outbreaks in the United States have occurred in 2016 and 2018. Outbreaks tend to occur between August and November.

 

Symptoms

 

The most common signs and symptoms of acute flaccid myelitis include:

 

Sudden arm or leg weakness

Sudden loss of muscle tone

Sudden loss of reflexes

Other signs and symptoms include:

 

Difficulty moving the eyes or drooping eyelids

Facial droop or weakness

Difficulty with swallowing or slurred speech

Pain in the arms, legs, neck or back

Uncommon symptoms might include Numbness or tingling

Inability to pass urine

Severe symptoms involve respiratory failure, due to the muscles involved in breathing becoming weak. It is also possible to experience life-threatening body temperature changes and blood pressure instability.

 

When to see a doctor

If you or your child has any of the signs or symptoms listed above, seek medical care as soon as possible.

Causes

Acute flaccid myelitis might be caused by an infection with a type of virus known as an enterovirus. Respiratory illnesses and fever from enteroviruses are common — especially in children. Most people recover. It is not clear why some people with an enterovirus infection develop acute flaccid myelitis.

 

In the United States many viruses, including enteroviruses, circulate between August and November. This is when acute flaccid myelitis outbreaks tend to occur.

 

The symptoms of acute flaccid myelitis can look like those of the viral disease polio. But none of the acute flaccid myelitis cases in the United States have been caused by poliovirus.

 

Risk factors

Acute flaccid myelitis affects young children.

 

Complications

Muscle weakness caused by acute flaccid myelitis can continue for months to years.

 

Prevention

There is no specific way to prevent acute flaccid myelitis. However, preventing a viral infection can help reduce the risk of developing acute flaccid myelitis.

 

Take these steps to help protect yourself or your child from getting or spreading a viral infection:

 

Wash your hands often with soap and water.

Avoid touching your face with unwashed hands.

Avoid close contact with people who are sick.

Clean and disinfect frequently touched surfaces.

Cover coughs and sneezes with a tissue or upper shirt sleeve.

Keep sick children at home.

Jan Ricks Jennings, MHA, LFACHE

Senior Consultant

Senior Management Resources, LLC

 

 

Jan.Jennings@EagleTalons.com

JanJenningsBlog.Blogspot.com

 

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April 16, 2022