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Transcutaneous electrical nerve stimulation TENS or TNS is the use of electric current produced by a device to stimulate the nerves for therapeutic purposes.
TENS, by definition, covers the complete range of transcutaneously applied currents used for nerve excitation although the term is often used with a more restrictive intent, namely to describe the kind of pulses produced by portable stimulators used electgica treat pain. A typical transcutaea TENS unit is able to modulate pulse width, frequency and intensity. TENS devices available to the domestic market are used as a non-invasive nerve stimulation intended to reduce both acute and chronic pain.
Transcutaneous electrical nerve stimulation
One review from felt that the evidence supports dstimulacion benefit in chronic musculoskeletal pain  Results from a task force on neck pain in found no clinically significant benefit to TENS for the neugomuscular of neck pain when compared to a placebo treatment. A review did not find evidence to support the use of TENS for chronic low back pain.
In principle, an adequate intensity of stimulation is necessary to achieve pain relief with TENS. A few studies have shown objective evidence that TENS may modulate or suppress pain signals in the brain. One used evoked cortical transctuanea to show that electric stimulation of peripheral A-beta sensory fibers reliably suppressed A-delta fiber nociceptive processing. The Cefaly device was found effective in preventing migraine attacks in a randomized sham-controlled trial.
A study performed on healthy human subjects demonstrates that repeated application of TENS can create analgesic tolerance and reduce its efficacy. Studies have stated that TENS “has been shown elecfrica to be effective in postoperative and labour pain. TENS has been extensively used in non-odontogenic orofacial pain relief. Electrical stimulation for pain control was used in ancient Rome63 A. It was reported by Scribonius Largus that pain was relieved by standing on an electrical fish at the seashore.
Benjamin Franklin was a proponent of this method for pain relief. Only the electreat survived into the 20th century, but was not portable, and had limited control of the stimulus.
Although intended only for testing tolerance to electrical stimulation, many of the patients said they received so much relief from the TENS itself that they never returned for the implant. A number of companies began manufacturing TENS units after the commercial success of the Medtronic device became known. The neurological division of Medtronic, founded by Don Maurer, Ed Schuck and Charles Ray, developed a number of applications for implanted electrical stimulation devices for treatment of epilepsy, Parkinson’s disease, and other disorders of the nervous system.
As reported, TENS has different effects on the brain. There are several anatomical locations where TENS electrodes are contraindicated:. TENS used across an artificial cardiac pacemaker or other indwelling stimulator, including across its leads may cause interference and failure of the implanted device. Serious accidents have been recorded in cases when this principle was not observed.
A review in this area suggests that electrotherapy, including TENS, “are best avoided” in patients with pacemakers or implantable cardioverter-defibrillators ICDs. They add that “there is no consensus and it may be possible to safely deliver these modalities in a proper setting with device and patient monitoring”, and recommend further research.
The review found several reports of ICDs administering inappropriate treatment due to interference with TENS devices, but notes that the reports on pacemakers are mixed: The use of TENS is likely to be less effective on areas of numb skin or decreased sensation due to nerve damage. It may also cause skin irritation due to the inability to feel currents until they are too high.
Transcutaneous electrical nerve stimulation – Wikipedia
Estimulaicon Wikipedia, the free encyclopedia. This article is about the nerve therapy device. For the muscle stimulation device, see Electrical muscle stimulation. For other uses, see TENS disambiguation. Electrotherapy and Electrophysiologic Testing Third ed.
A meta-analysis of randomized controlled trials”. Efficacy of transcutaneous electric nerve stimulation in neuromuscula treatment of pain in neurologic disorders an evidence-based review: The Cochrane Library 4: Cochrane Database of Systematic Reviews. A meta-analysis with assessment of optimal treatment nsuromuscular for postoperative pain”. European Journal of Pain. The Journal of Pain. Low fidelity may explain negative findings”.
An Electrophysiological Study in Healthy Volunteers”. Technology at the Neural Interface. Archives of Physical Medicine and Rehabilitation.
The Clinical Journal oF Pain. Ovid Technologies Wolters Kluwer Health. Archives of gynecology and obstetrics. The Journal of Craniomandibular Practice. The American Journal of Sports Medicine. A randomized clinical trial”. Theory and Application for the Occupational Therapist 2 ed. Retrieved from ” https: Electrotherapy Neurotechnology Medical equipment Pain management. Wikipedia articles needing page number citations from November CS1 maint: Views Read Edit View history. In other projects Wikimedia Commons.