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Central core disease.

Heinz Jungbluth1

  • 1Evelina Children's Hospital, Department of Paediatric Neurology, St. Thomas' Hospital, London, UK. Heinz.Jungbluth@gstt.nhs.uk

Orphanet Journal of Rare Diseases
|May 17, 2007
PubMed
Summary
This summary is machine-generated.

Central core disease (CCD) is a congenital myopathy linked to RYR1 gene mutations, causing muscle weakness and increased risk of malignant hyperthermia. Diagnosis involves clinical signs, muscle biopsy, and genetic testing, with supportive management focusing on anesthesia safety.

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Area of Science:

  • Neuromuscular Disorders
  • Genetics
  • Molecular Biology

Background:

  • Central core disease (CCD) is an inherited neuromuscular disorder presenting as a congenital myopathy.
  • Characterized by central cores on muscle biopsy, hypotonia, and motor delay in infancy.
  • Often associated with proximal weakness, orthopedic issues, and malignant hyperthermia susceptibility (MHS).

Purpose of the Study:

  • To outline the clinical presentation, diagnosis, and management of Central Core Disease.
  • To highlight the genetic basis and pathogenetic mechanisms of CCD.
  • To emphasize the importance of RYR1 gene analysis and anesthesia safety.

Main Methods:

  • Diagnosis relies on clinical features, muscle biopsy (central cores), and muscle MRI.
  • Genetic confirmation through mutational analysis of the RYR1 gene.
  • Evaluation of pathogenetic mechanisms involving RyR1 calcium release channel dysfunction.

Main Results:

  • CCD and MHS are allelic, often caused by dominant RYR1 mutations affecting calcium homeostasis.
  • Muscle MRI can aid diagnosis by showing characteristic muscle involvement patterns.
  • Supportive management is key, particularly anticipating anesthesia risks.

Conclusions:

  • CCD diagnosis is confirmed by clinical, histological, and genetic findings.
  • Understanding RYR1 mutations is crucial for managing CCD and MHS.
  • Supportive care and awareness of anesthesia complications are vital for patient outcomes.