Overview
Central core disease (CCD) is a congenital myopathy characterized by muscle weakness and distinctive histological features, including large eccentric cores in muscle fibers. It can present severely with fetal akinesia syndrome, leading to multiple joint contractures and significant motor impairments at birth 1.Diagnosis
Histological Examination: Muscle biopsy showing large eccentric cores confirms the diagnosis 1.
Genetic Testing: Identification of mutations in the RYR1 gene, particularly in the C-terminal and N-terminal domains, aids in diagnosis 1.
Clinical Presentation: Severe cases may present with fetal akinesia, arthrogryposis, congenital dislocation of hips, hypotonia, and skeletal deformities 1.Management
Supportive Care: Physical therapy and orthotic devices to manage joint deformities and improve mobility 1.
Respiratory Support: Close monitoring and intervention for respiratory complications due to severe hypotonia 1.
Nutritional Support: Management of feeding difficulties and growth issues through nutritional interventions 1.Special Populations
Pregnancy: Severe fetal akinesia syndrome can lead to intrauterine growth restriction and fetal demise 1.
Pediatrics: Early intervention with multidisciplinary approaches is crucial for improving motor function and quality of life 1.Key Recommendations
Perform muscle biopsy with histological examination to confirm CCD diagnosis (Evidence: Strong 1).
Consider genetic testing for RYR1 mutations to identify inheritance patterns and guide family counseling (Evidence: Strong 1).
Implement comprehensive supportive care including physical therapy and respiratory monitoring in severe cases (Evidence: Moderate 1).References
1 Romero NB, Monnier N, Viollet L, Cortey A, Chevallay M, Leroy JP et al.. Dominant and recessive central core disease associated with RYR1 mutations and fetal akinesia. Brain : a journal of neurology 2003. link