Electrical impedance myography as a biomarker to assess ALS progression.

Electrical impedance myography as a biomarker to assess ALS progression.
复制标题

DOI:
10.3109/17482968.2012.688837
复制
发表时间:
2012-09
期刊:
Amyotrophic lateral sclerosis : official publication of the World Federation of Neurology Research Group on Motor Neuron Diseases
影响因子:
--
通讯作者:
Shefner JM
Shefner JM
中科院分区:
其他
文献类型:
--
作者:
Rutkove SB;Caress JB;Cartwright MS;Burns TM;Warder J;David WS;Goyal N;Maragakis NJ;Clawson L;Benatar M;Usher S;Sharma KR;Gautam S;Narayanaswami P;Raynor EM;Watson ML;Shefner JM

文献摘要

参考文献

被引文献

相似文献

电阻抗肌电描记术(EIM)是一种非侵入性的电生理技术,已初步显示出作为ALS生物标志物的价值。在这里,我们进行了一项多中心研究,以进一步评估EIM跟踪ALS的潜力。ALS患者在8个研究中心入组。每位受试者定期接受EIM、手持式测力仪(HHD)和ALS功能评定量表修订版(ALSFRS-R)。通过评估下降率的变异系数(CoV)和每种技术与生存率的相关性来比较技术。结果显示,在随访一年的60例患者中,从每位患者最快速进展的肌肉测量的EIM阶段的CoV下降率为0.62,而HHD(0.82)和ALSFRS-R(0.74)。将测量限制在前六个月,EIM的CoV为0.55,HHD为0.93,ALSFRS-R为0.84。对于这两个时间段,所有三个措施与生存。基于这些数据,一个为期6个月的临床试验,旨在检测20%的治疗效果与80%的权力使用EIM将只需要95例患者/手臂相比,ALSFRS-R,这将需要220名受试者/arm. In结论,EIM可以作为一个有用的ALS生物标志物,提供了前景大大加快2期临床试验。
Electrical impedance myography (EIM), a non-invasive, electrophysiological technique, has preliminarily shown value as an ALS biomarker. Here we perform a multicenter study to further assess EIM’s potential for tracking ALS. ALS patients were enrolled across eight sites. Each subject underwent EIM, handheld dynamometry (HHD), and the ALS Functional Rating Scale-revised (ALSFRS-R) regularly. Techniques were compared by assessing the coefficient of variation (CoV) in the rate of decline and each technique’s correlation to survival. Results showed that in the 60 patients followed for one year, EIM phase measured from the most rapidly progressing muscle in each patient had a CoV in the rate of decline of 0.62, compared to HHD (0.82) and the ALSFRS-R (0.74). Restricting the measurements to the first six months gave a CoV of 0.55 for EIM, 0.93 for HHD, and 0.84 for ALSFRS-R. For both time-periods, all three measures correlated with survival. Based on these data, a six-month clinical trial designed to detect a 20% treatment effect with 80% power using EIM would require only 95 patients/arm compared to the ALSFRS-R, which would require 220 subjects/arm. In conclusion, EIM can serve as a useful ALS biomarker that offers the prospect of greatly accelerating phase 2 clinical trials.
DOI: 10.1016/j.apmr.2009.04.007
发表时间: 2009-10
影响因子: 4.3
作者:
Tarulli, Andrew W.;Duggal, Naven;Esper, Gregory J.;Garmirian, Lindsay P.;Fogerson, Patricia M.;Lin, Connie H.;Rutkove, Seward B.
通讯作者: Rutkove, Seward B.
DOI: 10.1016/s0022-510x(99)00210-5
发表时间: 1999-10-31
影响因子: 4.4
作者:
Cedarbaum, JM;Stambler, N;Nakanishi, A
通讯作者: Nakanishi, A
DOI: 10.1002/mus.21784
发表时间: 2010-12-01
期刊: MUSCLE & NERVE
影响因子: 3.4
作者:
Rutkove, Seward B.;Shefner, Jeremy M.;Darras, Basil T.
通讯作者: Darras, Basil T.
锂与Riluzole结合治疗肌萎缩性侧面硬化症的安全性和功效:一项随机,双盲,安慰剂对照试验。
DOI: 10.1016/s1474-4422(10)70068-5
发表时间: 2010-05
期刊: LANCET NEUROLOGY
影响因子: 48
作者:
Aggarwal, Swati P.;Zinman, Lorne;Simpson, Elizabeth;McKinley, Jane;Jackson, Katherine E.;Pinto, Hanika;Kaufman, Petra;Conwit, Robin A.;Schoenfeld, David;Shefner, Jeremy;Cudkowicz, Merit
通讯作者: Cudkowicz, Merit
DOI: 10.1002/mus.21362
发表时间: 2009-12
期刊: MUSCLE & NERVE
影响因子: 3.4
作者:
Rutkove, Seward B.
通讯作者: Rutkove, Seward B.