Harrison R F, Woods T, Shore M, Mathews G, Unwin A
Br J Obstet Gynaecol. 1986 Jul;93(7):739-46.
The analgesic effects of transcutaneous electrical nerve stimulation (TENS) in labour and effects on outcome were investigated in a double-blind TENS/TENS placebo controlled trial in 100 primigravidae and 50 women in their third labour. There were no differences between the TENS and the TENS placebo users in terms of pain concept or relief, and only 12 and 13% of primigravidae and 48 and 39% of the para 2 women completed labour without requiring other analgesia in their respective groups. The primigravidae who used either TENS or TENS placebo alone had shorter labours than those who required further analgesia. Although the outcome of labour for mother and infant were similar in the two groups, there was a higher operative delivery rate in women who also had epidural analgesia. There were highly significant differences between the TENS and the TENS placebo users in terms of favourable and unfavourable comments by the mothers and the midwives at 1 and 24 h after delivery. The evident consumer satisfaction for TENS suggests TENS has a part to play in analgesia in labour but the equivocal findings in terms of factors associated with pain relief points to the need for apparatus more specifically designed to cope with the special characteristics of the pain of labour.
在一项针对100名初产妇和50名经产妇的双盲经皮电刺激神经疗法（TENS）/TENS安慰剂对照试验中，研究了TENS在分娩中的镇痛效果及其对分娩结局的影响。在疼痛感受或缓解方面，TENS使用者和TENS安慰剂使用者之间没有差异，在各自组中，只有12%的初产妇和13%的经产妇以及48%的经产妇和39%的经产妇在未使用其他镇痛方法的情况下完成了分娩。单独使用TENS或TENS安慰剂的初产妇的产程比那些需要进一步镇痛的初产妇短。尽管两组中母婴的分娩结局相似，但同时接受硬膜外镇痛的女性的手术分娩率更高。在产后1小时和24小时，母亲和助产士对TENS使用者和TENS安慰剂使用者的评价存在高度显著差异。消费者对TENS明显的满意度表明TENS在分娩镇痛中可以发挥作用，但在与疼痛缓解相关因素方面的不确定结果表明需要更专门设计的设备来应对分娩疼痛的特殊特征。
