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The effects of cerebrospinal fluid tap-test on idiopathic normal pressure hydrocephalus: an inertial sensors based assessment.
Journal of NeuroEngineering and Rehabilitation ( IF 5.2 ) Pub Date : 2020-01-16 , DOI: 10.1186/s12984-019-0638-1
Alberto Ferrari 1 , David Milletti 2 , Giulia Giannini 3, 4 , Sabina Cevoli 3 , Federico Oppi 3 , Giorgio Palandri 5 , Luca Albini-Riccioli 6 , Paolo Mantovani 5 , Laura Anderlucci 7 , Pietro Cortelli 3, 4 , Lorenzo Chiari 1, 8
Affiliation  

BACKGROUND Gait disturbances are typical of persons with idiopathic normal pressure hydrocephalus (iNPH) without signs distinctive from other neurodegenerative and vascular conditions. Cerebrospinal fluid tap-test (CSF-TT) is expected to improve the motor performance of iNPH patients and is a prognostic indicator in their surgical management. This observational prospective study aims to determine which spatio-temporal gait parameter(s), measured during instrumented motor tests, and clinical scale(s) may provide a relevant contribution in the evaluation of motor performance pre vs. post CSF-TT on iNPH patients with and without important vascular encephalopathy. METHODS Seventy-six patients (20 with an associated vascular encephalopathy) were assessed before, and 24 and 72 h after the CSF-TT by a timed up and go test (TUG) and an 18 m walking test (18 mW) instrumented using inertial sensors. Tinetti Gait, Tinetti Balance, Gait Status Scale, and Grading Scale were fulfilled before and 72 h after the CSF-TT. Stride length, cadence and total time were selected as the outcome measures. Statistical models with mixed effects were implemented to determine the relevant contribution to response variables of each quantitative gait parameter and clinical scales. RESULTS AND CONCLUSION From baseline to 72 h post CSF-TT patients improved significantly by increasing cadence in 18 mW and TUG (on average of 1.7 and 2.4 strides/min respectively) and stride length in 18 mW (on average of 3.1 cm). A significant reduction of gait apraxia was reflected by modifications in double support duration and in coordination index. Tinetti Gait, Tinetti Balance and Gait Status Scale were able to explain part of the variability of response variables not covered by instrumental data, especially in TUG. Grading Scale revealed the highest affinity with TUG total time and cadence when considering clinical scales alone. Patients with iNPH and an associated vascular encephalopathy showed worst performances compared to pure iNPH but without statistical significance. Gait improvement following CSF-TT was comparable in the two groups. Overall these results suggest that, in order to augment CSF-TT accuracy, is key to assess the gait pattern by analyzing the main spatio-temporal parameters and set post evaluation at 72 h. TRIAL REGISTRATION Approved by ethics committee: CE 14131 23/02/2015.

中文翻译:

脑脊液轻击试验对特发性正常压力脑积水的影响:基于惯性传感器的评估。

背景技术步态障碍是特发性正常压力脑积水(iNPH)患者的典型症状,没有其他神经退行性疾病和血管疾病所特有的体征。脑脊液抽头测验(CSF-TT)有望改善iNPH患者的运动表现,并且是其外科治疗的预后指标。这项观察性前瞻性研究旨在确定在仪器化运动测试期间测得的时空步态参数和临床量表在评估iNPH患者CSF-TT前后的运动表现方面可做出相关贡献有或没有重要的血管性脑病。方法对76例患者(20例伴有血管性脑病)进行了评估,CSF-TT分别在24小时和72小时后通过惯性传感器进行定时测试(TUG)和18 m步行测试(18 mW)。在CSF-TT之前和之后的72小时内完成了Tinetti步态,Tinetti平衡,步态状态量表和分级量表。选择步幅,步频和总时间作为结果指标。实施具有混合效应的统计模型,以确定对每个定量步态参数和临床量表的反应变量的相关贡献。结果与结论CSF-TT患者从基线到72 h,通过增加踏频18 mW和TUG(分别为1.7和2.4步/分钟)和增加18 mW步长(平均3.1厘米)来显着改善。两次支持持续时间和协调指数的改变反映出步态性失用症的明显减少。Tinetti步态,Tinetti平衡和步态状态量表能够解释仪器数据未涵盖的反应变量的部分可变性,尤其是在TUG中。仅考虑临床量表时,分级量表显示出与TUG总时间和节奏的亲和力最高。与纯iNPH相比,患有iNPH并伴有血管性脑病的患者表现最差,但无统计学意义。CSF-TT后的步态改善在两组中相当。总体而言,这些结果表明,为了提高CSF-TT的准确性,通过分析主要的时空参数并在72 h进行后期评估,评估步态是关键。试用注册道德委员会批准:CE 14131 23/02/2015。Tinetti平衡和步态状态量表能够解释工具数据未涵盖的响应变量的部分可变性,尤其是在TUG中。当单独考虑临床量表时,分级量表显示出与TUG总时间和节奏的最高亲和力。与纯iNPH相比,患有iNPH并伴有血管性脑病的患者表现最差,但无统计学意义。CSF-TT后的步态改善在两组中相当。总体而言,这些结果表明,为了提高CSF-TT的准确性,通过分析主要的时空参数并在72 h进行后期评估,评估步态是关键。试用注册伦理委员会批准:CE 14131 2015年2月23日。Tinetti平衡和步态状态量表能够解释工具数据未涵盖的响应变量的部分可变性,尤其是在TUG中。当单独考虑临床量表时,分级量表显示出与TUG总时间和节奏的最高亲和力。与纯iNPH相比,患有iNPH并伴有血管性脑病的患者表现最差,但无统计学意义。CSF-TT后的步态改善在两组中相当。总体而言,这些结果表明,为了提高CSF-TT的准确性,通过分析主要的时空参数并在72 h进行后期评估,评估步态是关键。试用注册道德委员会批准:CE 14131 23/02/2015。当单独考虑临床量表时,分级量表显示出与TUG总时间和节奏的最高亲和力。与纯iNPH相比,患有iNPH并伴有血管性脑病的患者表现最差,但无统计学意义。CSF-TT后的步态改善在两组中相当。总体而言,这些结果表明,为了提高CSF-TT的准确性,通过分析主要的时空参数并在72 h进行后期评估,评估步态是关键。试用注册道德委员会批准:CE 14131 23/02/2015。当单独考虑临床量表时,分级量表显示出与TUG总时间和节奏的最高亲和力。与纯iNPH相比,患有iNPH并伴有血管性脑病的患者表现最差,但无统计学意义。CSF-TT后的步态改善在两组中相当。总的来说,这些结果表明,为了提高CSF-TT的准确性,通过分析主要的时空参数并在72 h设置后期评估,评估步态是关键。试用注册道德委员会批准:CE 14131 23/02/2015。CSF-TT后的步态改善在两组中相当。总体而言,这些结果表明,为了提高CSF-TT的准确性,通过分析主要的时空参数并在72 h进行后期评估,评估步态是关键。试用注册道德委员会批准:CE 14131 23/02/2015。CSF-TT后的步态改善在两组中相当。总的来说,这些结果表明,为了提高CSF-TT的准确性,通过分析主要的时空参数并在72 h设置后期评估,评估步态是关键。试用注册道德委员会批准:CE 14131 23/02/2015。
更新日期:2020-04-22
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