Is transcutaneous electrical nerve stimulation effective in relieving postoperative pain after thoracotomy?
A best evidence topic was constructed according to a structured protocol. The question addressed was whether the use of transcutaneous electrical nerve stimulation (TENS) is effective in reducing post-thoracotomy pain. Of the 74 papers found with a report search, 9 prospective randomized controlled trials (RCT), among which three were double-blind, presented the best evidence to answer the clinical question. All investigated the effect of TENS as an adjunct therapy for relieving acute post-thoracotomy pain in patients undergoing thoracic surgery. The authors, journal, date and country of publication, study type, group studied, relevant outcomes and results of these papers are given. We conclude that a vast majority – seven of the nine retrieved studies – were in favor of TENS as an adjuvant to narcotic analgesics for improving outcome after thoracic surgery. Indeed, the interest and benefit has been shown not only in the treatment of acute post-thoracotomy pain (pain scores and narcoti
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