McArdle disease digital illustration

McArdle disease Save


ICD-10 code: E74.04

Disease category: E74.0: Glycogen storage disease

McArdle disease, also known as glycogen storage disease type V, is a rare genetic disorder that affects the muscles. It is caused by a deficiency in the enzyme myophosphorylase, which is necessary for the breakdown of glycogen, a stored form of glucose that the muscles use for energy.

People with McArdle disease experience muscle pain, cramps, and fatigue during exercise or other physical activities. They may also have difficulty performing activities that require quick bursts of energy, such as running or climbing stairs. The symptoms usually start in childhood or adolescence and can worsen with age.

Diagnosis of McArdle disease is usually made through a combination of physical examination, blood tests, and muscle biopsy. Genetic testing can also be done to confirm the diagnosis.

There is currently no cure for McArdle disease, and treatment focuses on managing the symptoms. People with the condition are advised to avoid activities that can trigger muscle damage and to take measures to prevent or minimize muscle pain and cramps, such as warming up before exercise, staying hydrated, and resting when needed.

In some cases, a high-carbohydrate diet and supplements such as creatine may be recommended to help improve muscle function. Physical therapy can also be beneficial in helping to strengthen the muscles and improve flexibility.

With proper management, people with McArdle disease can lead relatively normal lives, although they may need to make certain lifestyle modifications to avoid exacerbating their symptoms. It is important for individuals with McArdle disease to work closely with their healthcare providers to develop an individualized treatment plan that meets their specific needs.

Treatment of McArdle disease:

Currently, there is no cure for McArdle disease, and treatment mainly focuses on managing symptoms and preventing complications. Here are some approaches that may be helpful:

Dietary modifications: Consuming a diet high in carbohydrates and low in fat can help prevent the depletion of glycogen stores and reduce muscle breakdown. It is recommended to consume small, frequent meals and ...

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