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Post-polio syndrome (PPS) is a disorder of the nerves and muscles that happens in some people many years after they have had polio. PPS may cause new muscle weakness that worsens over time, pain in the muscles and joints, and tiredness. People with PPS often feel exhausted.
Polio is a contagious disease caused by the polio virus. It can spread through body fluids. It most often strikes young children. Severe polio may lead to paralysis and breathing problems.
In the United States, an epidemic of polio peaked in the early 1950s. Polio vaccines helped to wipe out polio in the United States and almost everywhere else. Unfortunately, polio is making a comeback, and there have been recent outbreaks around the world.
Symptoms of polio can range from a mild, flu-like illness to serious muscle paralysis. Many people who survive polio are later at risk of PPS.
PPS happens in some people who have recovered from polio. It starts an average of 35 years after the original polio and may cause new muscle weakness, pain, and exhaustion. The weakness is gets worse over time and may eventually make it difficult to breathe. PPS may cause the muscles to shrink.
The cause of PPS is still not clear. Some experts think it may have to do with the way that the nerves have to regrow branches. This may overwork the nerve cells, after a bout of polio. Another idea under investigation is that the virus “sleeps” in the nervous system and reactivates later, causing PPS. It is also possible that the immune system somehow gets mixed up and attacks the body’s own nerves. Researchers are still trying to learn more about the possible causes of PPS.
PPS affects your nerves and muscles. Symptoms usually start between 20 and 40 years after the original polio illness, but they may appear anywhere from 10 to 70 years after. Muscle weakness may be the main symptom. This weakness may affect one side of your body more than the other. In general, symptoms of PPS may include:
You may find that your symptoms get progressively more noticeable. Nerves and muscles may continue to decline over time. Specially designed exercise programs and physical therapy may help improve some of the muscle weakness.
PPS only develops in people who once had polio. Healthcare providers generally start by taking a medical history, asking about your recent symptoms and other medical conditions. The healthcare provider typically does a thorough physical exam and tests your muscle strength. You may need testing that includes:
Healthcare providers may make a diagnosis of PPS if you had polio in the past, have new muscle weakness and other symptoms that last for a year, and have no other cause for your symptoms.
You may first see your primary healthcare provider and then be referred to a specialist, such as a neurologist who specializes in neuromuscular diseases.
There are no cures for PPS, but there are supportive therapies that can help you manage the condition. The goal of treatment for PPS is to reduce the impact of the condition on your daily life. You may use a cane or walker to save your energy and muscle strength. You may need to make sure you get plenty of rest.
People with PPS who have new muscle weakness and fatigue may improve muscle strength with specially designed, low-intensity muscle-strengthening exercise programs known as nonfatiguing exercises. You may do these exercises in brief cycles, in which short repeats of exercise alternate with periods of rest in between. It is very important for people with PPS to avoid too much exertion. Exercising in warm temperatures and in water may improve well-being.
Some supportive therapies that people with PPS may use include:
You may receive care from a variety of providers in addition to your neurologist. These might include physical therapists, occupational therapists, speech-language therapists, and respiratory specialists. You can work with your medical team to design the best plan of care for your situation.
PPS is a disorder that happens in some people many years after they had polio. The symptoms include progressive muscle weakness, pain in the muscles and joints, and fatigue. Some key things to know about PPS include:
Tips to help you get the most from a visit to your healthcare provider:
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