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find Keyword "神经刺激器" 3 results
  • Efficacy and Safety of Nerve-stimulator-guide Needle Placement in Peripheral Nerve Block: A Systematic Review

    Objective To assess the efficacy and safety of nerve-stimulator-guide needle placement in the peripheral nerve blockade. Methods The Cochrane Library, MEDLINE, OVID, VIP, CNKI and CBM were searched. The quality of the included studies was evaluated by three reviewers, and meta-analysis was performed. Results Twenty studies involving 1 287 participants related to needle placement in the peripheral nerve blockade were included. There were only 2 studies that described a detailed randomization method and allocation concealment and blinding, and the others were inadequate. Meta-analysis based on the included studies showed that: ① Absolute success ratio: nerve-stimulator-guide was higher than eliciting paraesthesia (OR= 4.05, 95%CI 2.57 to 6.36, Plt;0.00001) and anatomy localization (OR=30.3, 95%CI 1.73 to 532.74, P=0.02), but lower than ultrasound-guide-localization (OR=0.27, 95%CI 0.10 to 0.74, P=0.01). ② Onset time of the block: nerve-stimulator-guide was similar to eliciting paraesthesia (WMD= –1.70, 95%CI –?4.50 to 0.95, P=0.08), faster than arteriopalmus localization (WMD= 8.38, 95%CI 0.72 to 16.04, Plt;0.000 01), but slower than ultrasound-guide-localization (WMD= 8.38, 95%CI 0.72 to 16.04, P=0.04). ③ Ratio of complication associated to block: nerve-stimulator-guide was similar to eliciting paraesthesia (OR= 1.01, 95%CI 0.55 to 1.86, P=0.97), anatomy localization (WMD= 0.06, 95%CI 0.00 to 1.21, P=0.07) and arteriopalmus localization (WMD= 8.82, 95%CI 0.10 to 4.11, P=0.65), but higher than ultrasound-guide-localization (OR= 5.03, 95%CI 1.74 to 14.49, P=0.003). ④ Time to block: nerve-stimulator-guide was similar to eliciting paraesthesia (WMD=0.02, 95%CI –0.46 to 0.51, P=0.92), shorter than arteriopalmus localization (WMD= –4.00, 95%CI –5.58 to –2.42, Plt;0.000 01) and longer than ultrasound-guide-localization (WMD= 1.90, 95%CI 0.47 to 3.33, P=0.009). ⑤ Patient-accepted ratio: nerve-stimulator-guide was higher than eliciting paraesthesia (OR=2.32, 95%CI 1.02 to 5.30, P=0.05), and similar to arteriopalmus localization (OR=8.14, 95%CI 0.88 to 75.48, P=0.06). Conclusion Nerve-stimulator-guide location is a precise, effective and safe localization method. Due to moderate risk of selection bias and detection bias of included studies, the evidence is not b. Our results suggest that well-designed double-blind randomized controlled and larger-scale trials on the use of nerve stimulator in the peripheral nerve block are needed.

    Release date:2016-09-07 02:09 Export PDF Favorites Scan
  • 反应性神经刺激治疗成人局灶性药物难治性癫痫的中心试验结果

    为了验证在癫痫灶进行反应性神经刺激作为减少成人癫痫起源于一个或两个致痫灶的药物难治性部分性癫痫发作频率的辅助治疗方法的安全性及有效性。反应性局灶皮层刺激(Responsive focal cortical stimulation, RNS)的多中心随机对照双盲试验。对起源于一个或两个致痫灶的药物难治性部分性癫痫受试者进行皮下植入, 植入后1个月按1∶1随机分为真刺激及假刺激组。植入后第5个月过后, 所有受试者在一个开放标签期(Open label period, OLP)接受反应性神经刺激开放标签来完成2年的植入后随访。所有191例受试者进行了随机化。盲法期结束时真刺激组癫痫发作改变的百分比为37.9%, 假刺激组为17.3%(P=0.012, 广义估计方程)。开放标签期癫痫发作减少百分比中位数第1年为44%, 第2年为53%, 代表随着时间呈进行性且显著的改善(P<0.000 1)。严重不良事件发生率在真刺激及假刺激组间无差异。不良事件与植入医疗设备、癫痫发作及其它癫痫治疗方法的已知风险是一致的。未出现神经心理功能或情绪方面的不良效应。反应性神经刺激治疗局灶性癫痫快速减少了部分性癫痫发作的频率, 显示了随时间癫痫发作减少率的改善, 耐受性良好, 安全性可接受。RNS系统为药物难治性部分性癫痫发作患者提供了一种新的治疗选择

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  • Development of a flexible embedded neurostimulator for animal robots

    The neural stimulator is a core component of animal robots. While the control effect of animal robots is influenced by various factors, the performance of the neural stimulator plays a decisive role in regulating animal robots. In order to optimize animal robots, embedded neural stimulators had been developed using flexible printed circuit board technology. This innovation not only enabled the stimulator to generate parameter-adjustable biphasic current pulses through control signals, but also optimized its carrying mode, material, and size, overcoming the disadvantages of traditional backpack or head-inserted stimulators, which have poor concealment and are prone to infection. Static, in vitro, and in vivo performance tests of the stimulator demonstrated that it not only had precise pulse waveform output capability, but also was lightweight and small in size. It had excellent in vivo performance in both laboratory and outdoor environments. Our study has high practical significance for the application of animal robots.

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