Christian Rummey, Susan Perlman, S H Subramony, Manuela Corti, Jennifer Farmer, David R Lynch
{"title":"弗里德赖希共济失调儿童的疾病进展:FACHILD研究的功能表现和其他结果评估","authors":"Christian Rummey, Susan Perlman, S H Subramony, Manuela Corti, Jennifer Farmer, David R Lynch","doi":"10.1177/08830738251353475","DOIUrl":null,"url":null,"abstract":"<p><p>BackgroundFriedreich ataxia is a rare genetic disorder caused by mutations in the <i>FXN</i> gene, typically presenting with balance and coordination difficulties between ages 7 and 15 years. Neurologic symptoms are progressive and lead to loss of ambulation and especially in children other symptoms such as cardiomyopathy, scoliosis, and fatigue are common. The FACHILD natural history study aimed to expand knowledge about the disease course and evaluate clinical outcome assessments in children. We report on functional performance testing, clinical rating scales, and patient-reported outcomes as clinical outcome assessments for Friedreich ataxia. Over a 3-year period, all tests and assessments were conducted to evaluate their sensitivity to progression and correlate with established measures such as neurologic rating scales.MethodsIndividuals with genetically confirmed Friedreich ataxia, aged 7-18 years, were enrolled from October 2017 to November 2022. This analysis focused on ambulatory individuals, including timed walks (25-foot, 1 minute, and 6 minutes), the timed up and go, and the 9-hole pegboard test. Additionally, the Berg Balance Scale and FA-Activities of Daily Living were assessed. Progression data were analyzed using mixed models for repeated measures, with detailed analyses of intermittent missing data. Data from the Friedreich Ataxia Clinical Outcome Measures Study was used to augment analyses when available.Findings and InterpretationFunctional performance outcome measures are sensitive and clinically relevant tools for assessing disease progression in children with Friedreich ataxia. In early to moderately affected populations, the 1-Minute Walk demonstrated promising properties, showing comparable sensitivity to the modified Friedreich Ataxia Rating Scale and the Upright Stability Score.</p>","PeriodicalId":15319,"journal":{"name":"Journal of Child Neurology","volume":" ","pages":"8830738251353475"},"PeriodicalIF":1.6000,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Disease Progression in Children With Friedreich Ataxia: Functional Performance and Other Outcome Assessments in the FACHILD Study.\",\"authors\":\"Christian Rummey, Susan Perlman, S H Subramony, Manuela Corti, Jennifer Farmer, David R Lynch\",\"doi\":\"10.1177/08830738251353475\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>BackgroundFriedreich ataxia is a rare genetic disorder caused by mutations in the <i>FXN</i> gene, typically presenting with balance and coordination difficulties between ages 7 and 15 years. Neurologic symptoms are progressive and lead to loss of ambulation and especially in children other symptoms such as cardiomyopathy, scoliosis, and fatigue are common. The FACHILD natural history study aimed to expand knowledge about the disease course and evaluate clinical outcome assessments in children. We report on functional performance testing, clinical rating scales, and patient-reported outcomes as clinical outcome assessments for Friedreich ataxia. Over a 3-year period, all tests and assessments were conducted to evaluate their sensitivity to progression and correlate with established measures such as neurologic rating scales.MethodsIndividuals with genetically confirmed Friedreich ataxia, aged 7-18 years, were enrolled from October 2017 to November 2022. This analysis focused on ambulatory individuals, including timed walks (25-foot, 1 minute, and 6 minutes), the timed up and go, and the 9-hole pegboard test. Additionally, the Berg Balance Scale and FA-Activities of Daily Living were assessed. Progression data were analyzed using mixed models for repeated measures, with detailed analyses of intermittent missing data. Data from the Friedreich Ataxia Clinical Outcome Measures Study was used to augment analyses when available.Findings and InterpretationFunctional performance outcome measures are sensitive and clinically relevant tools for assessing disease progression in children with Friedreich ataxia. In early to moderately affected populations, the 1-Minute Walk demonstrated promising properties, showing comparable sensitivity to the modified Friedreich Ataxia Rating Scale and the Upright Stability Score.</p>\",\"PeriodicalId\":15319,\"journal\":{\"name\":\"Journal of Child Neurology\",\"volume\":\" \",\"pages\":\"8830738251353475\"},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2025-07-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Child Neurology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1177/08830738251353475\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CLINICAL NEUROLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Child Neurology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1177/08830738251353475","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CLINICAL NEUROLOGY","Score":null,"Total":0}
Disease Progression in Children With Friedreich Ataxia: Functional Performance and Other Outcome Assessments in the FACHILD Study.
BackgroundFriedreich ataxia is a rare genetic disorder caused by mutations in the FXN gene, typically presenting with balance and coordination difficulties between ages 7 and 15 years. Neurologic symptoms are progressive and lead to loss of ambulation and especially in children other symptoms such as cardiomyopathy, scoliosis, and fatigue are common. The FACHILD natural history study aimed to expand knowledge about the disease course and evaluate clinical outcome assessments in children. We report on functional performance testing, clinical rating scales, and patient-reported outcomes as clinical outcome assessments for Friedreich ataxia. Over a 3-year period, all tests and assessments were conducted to evaluate their sensitivity to progression and correlate with established measures such as neurologic rating scales.MethodsIndividuals with genetically confirmed Friedreich ataxia, aged 7-18 years, were enrolled from October 2017 to November 2022. This analysis focused on ambulatory individuals, including timed walks (25-foot, 1 minute, and 6 minutes), the timed up and go, and the 9-hole pegboard test. Additionally, the Berg Balance Scale and FA-Activities of Daily Living were assessed. Progression data were analyzed using mixed models for repeated measures, with detailed analyses of intermittent missing data. Data from the Friedreich Ataxia Clinical Outcome Measures Study was used to augment analyses when available.Findings and InterpretationFunctional performance outcome measures are sensitive and clinically relevant tools for assessing disease progression in children with Friedreich ataxia. In early to moderately affected populations, the 1-Minute Walk demonstrated promising properties, showing comparable sensitivity to the modified Friedreich Ataxia Rating Scale and the Upright Stability Score.
期刊介绍:
The Journal of Child Neurology (JCN) embraces peer-reviewed clinical and investigative studies from a wide-variety of neuroscience disciplines. Focusing on the needs of neurologic patients from birth to age 18 years, JCN covers topics ranging from assessment of new and changing therapies and procedures; diagnosis, evaluation, and management of neurologic, neuropsychiatric, and neurodevelopmental disorders; and pathophysiology of central nervous system diseases.