期刊
ORPHANET JOURNAL OF RARE DISEASES
卷 16, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s13023-021-01674-y
关键词
Costello syndrome; Cardio-facio-cutaneous syndrome; Rasopathies; Musculo-skeletal profiling; Functional and disability assessment; Genotype-phenotype correlation; Patient-centered care; Innovative biotechnologies; Clinical biomarker; Personalized medicine; Tailored treatments
资金
- Italian Ministry of Health
- European Joint Program on Rare Diseases (NSEuroNet)
Orthopedic manifestations are common in patients with Costello syndrome and cardio-facio-cutaneous syndrome, with differences in severity and characteristics based on genetic variants. Functional assessments by using 6MWT and PODCI could help evaluate the impact on patient outcomes and guide tailored treatment approaches.
BackgroundCostello syndrome (CS) and cardio-facio-cutaneous syndrome (CFCS) belong to the RASopathies, a group of neurodevelopmental disorders with skeletal anomalies. Due to their rarity, the characterization of the musculo-skeletal phenotype in both disorders has been poorly characterized.Patients and methodsHerein we reported data on orthopedic findings and functional status of a large sample of CS and CFCS patients. Thirty-four patients (CS=17 and CFCS=17) were recruited. Functional and disability evaluations were performed by assessing the 6-min walking test (6MWT) and Pediatric Outcomes Data Collection Instrument (PODCI). Genotype/phenotype correlation was also provided.ResultsOrthopedic manifestations are highly prevalent in CS and CFCS and overlap in the two disorders. Overall, patients with CS harboring the recurrent HRAS Gly12Ser substitution show a more severe skeletal phenotype compared to patients carrying the Gly12Ala and Gly13Cys variants. Among CFCS patients, those with the MAP2K1/2 variant show different skeletal characteristics compared to BRAF variants, with a higher prevalence of orthopedic abnormalities. Functional assessment showed that patients with CS and CFCS reached lower values compared to the general population, with CFCS patients displaying the lowest scores.ConclusionsOrthopedic manifestations appear universal features of CS and CFCS and they can evolve across patients' life. Longitudinal assessment of disability status by using 6MWT and PODCI could be useful to evaluate the functional impact of orthopedic manifestations on patients' outcome and help planning a tailored treatment of these comorbidities.
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