Graak Vinay, Chaudhary Sarika, Bal B S, Sandhu J S
Department of Sports Medicine and Physiotherapy, Guru Nanak Dev University, Amritsar, Punjab, India.
Int J Diabetes Dev Ctries. 2009 Apr;29(2):56-61. doi: 10.4103/0973-3930.53121.
The study was carried out to evaluate and compare the effect of low power, low frequency pulsed electromagnetic field (PEMF) of 600 and 800 Hz, respectively, in management of patients with diabetic polyneuropathy.
The study was a randomized controlled trial performed in Guru Nanak Dev University and Medical College, Amritsar, India with different subject experimental design.
Thirty subjects within an age group of 40-68 years with diabetic polyneuropathy stages N1a, N1b, N2a were randomly allocated to groups 1, 2, 3 with 10 subjects in each. Group 1 and 2 were treated with low power 600 and 800-Hz PEMF for 30 min for 12 consecutive days. Group 3 served as control on usual medical treatment of diabetic polyneuropathy (DPN). The subjects with neuropathy due to any cause other than diabetes were excluded. The pain and motor nerve conduction parameters (distal latency, amplitude, nerve conduction velocity) were assessed before and after treatment.
Related t-test and unrelated t-test were used for data analysis.
Significant reduction in pain and statistically significant (P<0.05) improvement in distal latency and nerve conduction velocity were seen in experimental group 1 and 2.
Low-frequency PEMF can be used as an adjunct in reducing neuropathic pain as well as for retarding the progression of neuropathy in a short span of time.
本研究旨在评估和比较分别为600赫兹和800赫兹的低功率、低频脉冲电磁场（PEMF）对糖尿病性多发性神经病变患者的治疗效果。
本研究是一项在印度阿姆利则的古鲁那纳克·德夫大学和医学院进行的随机对照试验，采用了不同的受试者实验设计。
将30名年龄在40 - 68岁之间、患有N1a、N1b、N2a期糖尿病性多发性神经病变的受试者随机分为1、2、3组，每组10人。第1组和第2组分别接受低功率600赫兹和800赫兹的PEMF治疗，每次30分钟，连续治疗12天。第3组作为对照组，接受糖尿病性多发性神经病变（DPN）的常规药物治疗。排除由糖尿病以外任何原因引起神经病变的受试者。在治疗前后评估疼痛和运动神经传导参数（远端潜伏期、波幅、神经传导速度）。
采用相关t检验和非相关t检验进行数据分析。
在第1组和第2组实验组中，疼痛显著减轻，远端潜伏期和神经传导速度有统计学意义的改善（P<0.05）。
低频PEMF可作为辅助手段，在短时间内减轻神经病理性疼痛并延缓神经病变的进展。
