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1.
Muscle Nerve ; 52(6): 942-7, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25846132

RESUMEN

INTRODUCTION: With clinical trials underway, our objective was to construct a composite score of global function that could discriminate among people with spinal muscular atrophy (SMA). METHODS: Data were collected from 126 participants with SMA types 2 and 3. Scores from the Hammersmith Functional Motor Scale-Expanded and Upper Limb Module were expressed as a percentage of the maximum score and 6-minute walk test as percent of predicted normal distance. A principal component analysis was performed on the correlation matrix for the 3 percentage scores. RESULTS: The first principal component yielded a composite score with approximately equal weighting of the 3 components and accounted for 82% of the total variability. The SMA functional composite score, an unweighted average of the 3 individual percentage scores, correlated almost perfectly with the first principal component. CONCLUSIONS: This combination of measures broadens the spectrum of ability that can be quantified in type 2 and 3 SMA patients.


Asunto(s)
Atrofia Muscular Espinal/diagnóstico , Atrofia Muscular Espinal/fisiopatología , Índice de Severidad de la Enfermedad , Adolescente , Niño , Preescolar , Femenino , Humanos , Masculino , Movimiento/fisiología , Análisis de Componente Principal , Estudios Prospectivos , Extremidad Superior/fisiopatología , Caminata/fisiología , Adulto Joven
2.
J Pediatr Rehabil Med ; 14(3): 451-461, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34275913

RESUMEN

PURPOSE: The purpose of this study was to examine the psychometric properties of the Pediatric Evaluation of Disability Inventory-Computer Adaptive Test (PEDI-CAT) in children and youth with Spinal Muscular Atrophy (SMA). METHODS: In this prospective cross-sectional study, caregivers of children and youth with SMA completed the PEDI-CAT Daily Activities and Mobility domains. A subset of caregivers completed a questionnaire about the measure. RESULTS: Mean ranks of scaled scores for Daily Activities (n = 96) and Mobility (n = 95) domains were significantly different across the three SMA types and across the three motor classifications. Normative scores indicated that 85 participants (89.5%) had limitations in Mobility and 51 in Daily Activities (53.1%). Floor effects were observed in≤10.4% of the sample for Daily Activities and Mobility. On average, caregivers completed the Mobility domain in 5.4 minutes and the Daily Activities domain in 3.3 minutes. Most caregivers reported that they provided meaningful information (92.1%), were willing to use the PEDI-CAT format again (79%), and suggested adding content including power wheelchair mobility items. CONCLUSION: Convergent validity was demonstrated for the Daily Activities and Mobility domains. Normative scores detected limitations in Mobility and Daily Activity performance for most participants with SMA. The PEDI-CATwas feasible to administer and caregivers expressed willingness to complete the PEDI-CAT in the future.


Asunto(s)
Evaluación de la Discapacidad , Atrofia Muscular Espinal , Adolescente , Niño , Computadores , Estudios Transversales , Humanos , Limitación de la Movilidad , Estudios Prospectivos , Psicometría , Reproducibilidad de los Resultados
3.
Neuromuscul Disord ; 23(7): 529-39, 2013 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23726376

RESUMEN

Therapeutic trials in Duchenne Muscular Dystrophy (DMD) exclude young boys because traditional outcome measures rely on cooperation. The Bayley III Scales of Infant and Toddler Development (Bayley III) have been validated in developing children and those with developmental disorders but have not been studied in DMD. Expanded Hammersmith Functional Motor Scale (HFMSE) and North Star Ambulatory Assessment (NSAA) may also be useful in this young DMD population. Clinical evaluators from the MDA-DMD Clinical Research Network were trained in these assessment tools. Infants and boys with DMD (n = 24; 1.9 ± 0.7 years) were assessed. The mean Bayley III motor composite score was low (82.8 ± 8; p ≤ .0001) (normal = 100 ± 15). Mean gross motor and fine motor function scaled scores were low (both p ≤ .0001). The mean cognitive comprehensive (p=.0002), receptive language (p ≤ .0001), and expressive language (p = .0001) were also low compared to normal children. Age was negatively associated with Bayley III gross motor (r = -0.44; p = .02) but not with fine motor, cognitive, or language scores. HFMSE (n=23) showed a mean score of 31 ± 13. NSAA (n = 18 boys; 2.2 ± 0.4 years) showed a mean score of 12 ± 5. Outcome assessments of young boys with DMD are feasible and in this multicenter study were best demonstrated using the Bayley III.


Asunto(s)
Cognición/fisiología , Actividad Motora/fisiología , Distrofia Muscular de Duchenne/terapia , Evaluación de Resultado en la Atención de Salud , Factores de Edad , Niño , Desarrollo Infantil/fisiología , Preescolar , Ensayos Clínicos como Asunto , Discapacidades del Desarrollo/complicaciones , Discapacidades del Desarrollo/fisiopatología , Discapacidades del Desarrollo/terapia , Humanos , Lactante , Masculino , Distrofia Muscular de Duchenne/complicaciones , Distrofia Muscular de Duchenne/fisiopatología , Evaluación de Resultado en la Atención de Salud/métodos
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