Central core disease of muscle
Central Core Disease of Muscle
Central Core Disease of Muscle (CCD) is a congenital myopathy characterized by the presence of distinctive structural abnormalities in muscle fibers. It is a rare genetic disorder that primarily affects the skeletal muscles, which are used for movement.
Etiology[edit | edit source]
CCD is caused by mutations in the RYR1 gene. This gene provides instructions for making a protein that plays a key role in a process called excitation-contraction coupling, which is necessary for muscles to contract.
Symptoms[edit | edit source]
Symptoms of CCD typically begin in infancy or early childhood and can include muscle weakness, delays in motor skills, difficulty with physical coordination, and susceptibility to malignant hyperthermia, a severe reaction to certain drugs used during general anesthesia.
Diagnosis[edit | edit source]
Diagnosis of CCD is based on the clinical symptoms, a detailed patient history, a thorough clinical evaluation, and specialized tests such as a muscle biopsy, which can reveal the characteristic "central cores" in muscle fibers that give the disorder its name.
Treatment[edit | edit source]
There is currently no cure for CCD. Treatment is symptomatic and supportive, and may include physical therapy, respiratory support, and avoidance of certain anesthetic agents.
Prognosis[edit | edit source]
The prognosis for individuals with CCD varies. Some individuals may have a normal life expectancy, while others may experience severe complications such as respiratory failure.
See also[edit | edit source]
References[edit | edit source]
External links[edit | edit source]
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Contributors: Prab R. Tumpati, MD