Alexa Beovich, Jessica Boose, Rachana Patel, Steven L Wolf
{"title":"迷走神经刺激配合康复治疗慢性中风：确定响应者的特征。","authors":"Alexa Beovich, Jessica Boose, Rachana Patel, Steven L Wolf","doi":"10.1097/NPT.0000000000000488","DOIUrl":null,"url":null,"abstract":"<p><strong>Background and purpose: </strong>Implantable vagus nerve stimulation (VNS) paired with volitional upper extremity rehabilitation can improve impairment and function among moderately to severely impaired, chronic stroke survivors. This study is a retrospective analysis of the in-clinic rehabilitation phase of the blinded, placebo-controlled, randomized pivotal VNS-REHAB trial to determine whether dosing parameters during in-clinic paired VNS therapy were associated with responder status and whether covariates might impact that determination.</p><p><strong>Methods: </strong>Data were limited to 53 participants in the active VNS group who had received VNS implants prior to undergoing 6 weeks of in-clinic rehabilitation paired with VNS. Tasks were standardized across all participants. Dosing parameters included number of stimulations and task time. The primary outcome was the Fugl-Meyer Upper Extremity Assessment (FMA-UE), evaluated at the end of 6 weeks (Post-1). Participants were classified a priori as responders based on an improvement of ≥6 points on the FMA-UE from baseline to Post-1.</p><p><strong>Results: </strong>Dosing parameters were not associated with FMA-UE responder status at the end of 6 weeks. Covariates including age, gender, paretic hand, baseline severity, and chronicity of stroke were also not significant associations of response.</p><p><strong>Discussion and conclusions: </strong>While responders to VNS could be defined, therapy dosing and participant attributes did not provide greater specification for association of responder status. Limitations of this study include small sample size and non-linearity of the FMA-UE. Future studies will include reassessing responder categorization using more linear scales and examining stroke lesion characteristics to determine whether these measures are more sensitive to dosing parameters.</p><p><strong>Video abstract available: </strong>for more insights from the authors (see the Video, Supplemental Digital Content 1, available at: http://www.w3.org/1999/xlink).</p>","PeriodicalId":49030,"journal":{"name":"Journal of Neurologic Physical Therapy","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Vagus Nerve Stimulation Paired With Rehabilitation for Chronic Stroke: Characterizing Responders.\",\"authors\":\"Alexa Beovich, Jessica Boose, Rachana Patel, Steven L Wolf\",\"doi\":\"10.1097/NPT.0000000000000488\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background and purpose: </strong>Implantable vagus nerve stimulation (VNS) paired with volitional upper extremity rehabilitation can improve impairment and function among moderately to severely impaired, chronic stroke survivors. This study is a retrospective analysis of the in-clinic rehabilitation phase of the blinded, placebo-controlled, randomized pivotal VNS-REHAB trial to determine whether dosing parameters during in-clinic paired VNS therapy were associated with responder status and whether covariates might impact that determination.</p><p><strong>Methods: </strong>Data were limited to 53 participants in the active VNS group who had received VNS implants prior to undergoing 6 weeks of in-clinic rehabilitation paired with VNS. Tasks were standardized across all participants. Dosing parameters included number of stimulations and task time. The primary outcome was the Fugl-Meyer Upper Extremity Assessment (FMA-UE), evaluated at the end of 6 weeks (Post-1). Participants were classified a priori as responders based on an improvement of ≥6 points on the FMA-UE from baseline to Post-1.</p><p><strong>Results: </strong>Dosing parameters were not associated with FMA-UE responder status at the end of 6 weeks. Covariates including age, gender, paretic hand, baseline severity, and chronicity of stroke were also not significant associations of response.</p><p><strong>Discussion and conclusions: </strong>While responders to VNS could be defined, therapy dosing and participant attributes did not provide greater specification for association of responder status. Limitations of this study include small sample size and non-linearity of the FMA-UE. 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Vagus Nerve Stimulation Paired With Rehabilitation for Chronic Stroke: Characterizing Responders.
Background and purpose: Implantable vagus nerve stimulation (VNS) paired with volitional upper extremity rehabilitation can improve impairment and function among moderately to severely impaired, chronic stroke survivors. This study is a retrospective analysis of the in-clinic rehabilitation phase of the blinded, placebo-controlled, randomized pivotal VNS-REHAB trial to determine whether dosing parameters during in-clinic paired VNS therapy were associated with responder status and whether covariates might impact that determination.
Methods: Data were limited to 53 participants in the active VNS group who had received VNS implants prior to undergoing 6 weeks of in-clinic rehabilitation paired with VNS. Tasks were standardized across all participants. Dosing parameters included number of stimulations and task time. The primary outcome was the Fugl-Meyer Upper Extremity Assessment (FMA-UE), evaluated at the end of 6 weeks (Post-1). Participants were classified a priori as responders based on an improvement of ≥6 points on the FMA-UE from baseline to Post-1.
Results: Dosing parameters were not associated with FMA-UE responder status at the end of 6 weeks. Covariates including age, gender, paretic hand, baseline severity, and chronicity of stroke were also not significant associations of response.
Discussion and conclusions: While responders to VNS could be defined, therapy dosing and participant attributes did not provide greater specification for association of responder status. Limitations of this study include small sample size and non-linearity of the FMA-UE. Future studies will include reassessing responder categorization using more linear scales and examining stroke lesion characteristics to determine whether these measures are more sensitive to dosing parameters.
Video abstract available: for more insights from the authors (see the Video, Supplemental Digital Content 1, available at: http://www.w3.org/1999/xlink).
期刊介绍：
The Journal of Neurologic Physical Therapy (JNPT) is an indexed resource for dissemination of research-based evidence related to neurologic physical therapy intervention. High standards of quality are maintained through a rigorous, double-blinded, peer-review process and adherence to standards recommended by the International Committee of Medical Journal Editors. With an international editorial board made up of preeminent researchers and clinicians, JNPT publishes articles of global relevance for examination, evaluation, prognosis, intervention, and outcomes for individuals with movement deficits due to neurologic conditions. Through systematic reviews, research articles, case studies, and clinical perspectives, JNPT promotes the integration of evidence into theory, education, research, and practice of neurologic physical therapy, spanning the continuum from pathophysiology to societal participation.
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