![]() You can control the strength of the current yourself (OAA, 2019). TENS is thought to work as the electrical pulses stimulate nerves that run to the spinal cord and block the transmission of pain (Doswell et al, 2009). How does TENS work?Ī TENS machine works by sending mild electrical impulses to sticky pads on your lower back. It’s a form of pain relief that you can control with a hand-held device. Seven trials reported minor adverse effects, such as mild erythema and itching underneath the electrodes and participants disliking TENS sensation.TENS stands for transcutaneous electrical nerve stimulation. There was a high risk of bias associated with inadequate sample sizes in treatment arms and unsuccessful blinding of treatment interventions. MD was -19.05 mm (95% CI -27.30 to -10.79) in favour of TENS using a random-effects model. We pooled data for pain intensity from five trials (seven comparisons) but the I 2 statistic suggested considerable heterogeneity. Data for the proportion of participants achieving ≥ 50% reduction in pain was pooled for four trials (seven comparisons) and relative risk was 3.91 (95% CI 2.42 to 6.32) in favour of TENS over placebo. Mean difference (MD) with 95% confidence intervals (CIs) on a visual analogue scale (VAS, 100 mm) was -24.62 mm (95% CI -31.79 to -17.46) in favour of TENS. We pooled data for pain intensity for six trials (seven comparisons) comparing TENS with placebo but the I 2 statistic suggested substantial heterogeneity. postpartum uterine contractions and rib fractures. cervical laser treatment, venepuncture, screening flexible sigmoidoscopy and non-procedural pain, e.g. The types of acute pain included in this Cochrane Review were procedural pain, e.g. We excluded most trials because TENS was given in combination with another treatment as part of the formal study design or TENS was not delivered using appropriate TENS technique. In total, we included 19 RCTs involving 1346 participants at entry, with 11 trials awaiting classification either because the full text was unavailable or information in the full text failed to clarify eligibility. An additional seven new trials met the inclusion criteria in this second update. We included 12 trials in the original review (2009) and included no further trials in the first update (2011). The quality of the evidence was moderate to low because sample sizes were small and some patients were aware that they were receiving TENS or placebo. ![]() We recommended that TENS should be considered as a treatment option given on its own or in combination with other treatments. TENS is inexpensive, safe and can be self-administered. Overall we concluded that TENS may reduce the intensity of acute pain in some patients but the quality of evidence was weak. There was an insufficient number patients to make a firm conclusion.Ī small number of patients experienced itching and redness beneath the TENS pads or disliked the sensation produced by TENS. This finding was based on an analysis of only six of the 19 trials. TENS was better than placebo TENS (delivering no electrical current) at reducing the intensity of acute pain but the reduction in pain was not consistent across all trials. Eleven trials are awaiting classification. We did not include trials that assessed TENS for pain associated with childbirth, dental procedures and menstruation because they have been the subject of other Cochrane Reviews. The trials assessed TENS for cervical laser treatment, venepuncture, sigmoidoscopy, rib fractures and uterine contractions after childbirth. The trials administered TENS to produce a strong non painful 'tingling' sensation at the site of acute pain. We included 19 clinical trials published up to 3 December 2014, which examined 1346 people. ![]() Transcutaneous Electrical Nerve Stimulation (TENS) is a treatment to relieve pain by administering mild electrical currents to the body using electrode pads attached to the surface of the skin. broken bones, burns and cuts) and medical procedures (e.g. Acute pain is associated with surgery, physical trauma (e.g. Acute pain is pain of recent onset and limited duration.
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