Abreu et al. (2010)1212 Abreu EA, Santos JD, Ventura PL. Efetividade da eletroestimulação nervosa transcutânea no alívio da dor durante o trabalho de parto: um ensaio clínico controlado. Rev Dor. 2010;11(04): 313-318 cited 2020May 22 [Internet]. Available from http://files.bvs.br/upload/S/1806-0013/2010/v11n4/a1654.pdf http://files.bvs.br/upload/S/1806-0013/2...
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To evaluate the effectiveness of TENS in pain relief during labor. |
Experimental group: Application of TENS by means of a pair of electrodes at the level of the T10-L1 vertebrae and another pair at the level of S2-S4.Control group: TENS with subliminal stimulus. |
TENS provided pain relief in 80% of the cases, assessed by the VAS. There were no cases of pain relief in the control group. |
TENS is effective in relieving pain during labor. |
Peng et al. (2010)1313 Peng T, Li XT, Zhou SF, Xiong Y, Kang Y, Cheng HD. Transcutaneous electrical nerve stimulation on acupoints relieves labor pain: a non-randomized controlled study. Chin J Integr Med. 2010;16 (03):234-238. Doi: 10.1007/s11655-010-0234-9 https://doi.org/10.1007/s11655-010-0234-...
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To investigate the effectiveness of TENS to reduce pain in labor when applied to four specific acupuncture points. |
Experimental group: Application of TENS in four specific acupuncture points (LI4, PC6, BL19, and BL21).Control group: without any intervention. |
There was 68% of pain relief during labor in the group treated with TENS, measured by the VAS |
The application of TENS to acupuncture points LI4, PC6, BL19, and BL21 is an effective, noninvasive method for pain control during labor. |
Santana et al. (2016)1414 Santana LS, Gallo RB, Ferreira CH, Duarte G, Quintana SM, Marcolin AC. Transcutaneous electrical nerve stimulation (TENS) reduces pain and postpones the need for pharmacological analgesia during labour: a randomised trial. J Physiother. 2016;62 (01):29-34. Doi: 10.1016/j.jphys.2015.11.002 https://doi.org/10.1016/j.jphys.2015.11....
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To assess whether TENS relieves pain or changes its location in the first phase of labor and whether TENS delays the request for neuraxial analgesia. |
Experimental group: Application of TENS by means of a pair of electrodes at the level of the T10-L1 vertebrae and another pair at the level of S2-S4.Control group: physiotherapist for guidance and answer questions. |
TENS reduced pain in the experimental group, assessed by the VAS, but did not change its location or distribution. Pharmacological analgesia was postponed for 5 hours after TENS intervention, compared with the control group. |
TENS significantly reduces pain in labor and postpones the need for pharmacological analgesia. |
Shahoei et al. (2017)1515 Shahoei R, Shahghebi S, Rezaei M, Naqshbandi S. The effect of transcutaneous electrical nerve stimulation on the severity of labor pain among nulliparous women: A clinical trial. Complement Ther Clin Pract. 2017;28:176-180. Doi: 10.1016/j.ctcp.2017.05.004 https://doi.org/10.1016/j.ctcp.2017.05.0...
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To investigate the effect of TENS on labor pain among nulliparous women. |
Experimental group: Application of TENS by means of a pair of electrodes at the level of the T10-L1 vertebrae and another pair at the level of S2-S4.Placebo group: TENS off (no electrical stimulus). Control group: no TENS, just routine care and guidance. |
TENS provided a significant reduction in pain during labor and also 4 hours later, assessed by the VAS.TENS had no placebo effect. |
TENS reduces pain during labor and 4 hours afterwards. |
Báez-Suárez et al. (2018)22 Báez-Suárez A, Martín-Castillo E, García-Andújar J, García-Hernández JA, Quintana-Montesdeoca MP, Loro-Ferrer JF. Evaluation of different doses of transcutaneous nerve stimulation for pain relief during labour: a randomized controlled trial. Trials. 2018;19 (01):652. Doi: 10.1186/s13063-018-3036-2 https://doi.org/10.1186/s13063-018-3036-...
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To investigate the effect of pain relief by applying TENS in labor. |
Experimental group: Application of TENS by means of a pair of electrodes at the level of the T10-L1 vertebrae and another pair at the level of S2-S4.Placebo group: TENS off (no electrical stimulus). |
TENS provided a greater degree of pain relief in the active TENS group than in the placebo TENS group. |
TENS is a safe and effective nonpharmacological option for pain relief during labor. |
Njogu et al. (2021)1616 Njogu A, Qin S, Chen Y, Hu L, Luo Y. The effects of transcutaneous electrical nerve stimulation during the first stage of labor: a randomized controlled trial. BMC Pregnancy Childbirth. 2021;21 (01):164-171. Doi: 10.1186/s12884-021-03625-8 https://doi.org/10.1186/s12884-021-03625...
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To determine the effects of TENS therapy in the first stage of labor. |
Experimental group: Application of TENS by means of a pair of electrodes at the level of the T10-L1 vertebrae and S2-S4, in addition to a pair in each arm.Control group: routine obstetric care. |
The experimental group had lower mean pain scale scores than the control group and shorter duration of the active phase of labor. |
TENS can be used as a nonpharmacological therapy to reduce pain and shorten the active phase of labor. |