Estimulação elétrica nervosa transcutânea de curta duração no pós-operatório de cirurgia cardíaca

Abstract

Background: Respiratory muscle strength has been related to the postoperative outcome of cardiac surgeries. The main documented therapeutic purpose of transcutaneous electrical nerve stimulation (TENS) is the reduction of pain, which could bring secondary benefits to the respiratory muscles and, consequently, to lung capacities and volumes.Objectives: The objective of the present study was to evaluate the effectiveness of short-duration transcutaneous electrical nerve stimulation (TENS) in the reduction of pain and its possible influence on respiratory muscle strength and lung capacity and volumes of patients in the postoperative period of cardiac surgery.Methods: Twenty five patients with mean age of 59.9 ± 10.3 years, of whom 72% were men, and homogeneous as regards weight and height, were randomly assigned to two groups. One group received therapeutic TENS (n = 13) and the other, placebo TENS (n = 12), for four hours on the third postoperative day of cardiac surgery. Pain was analyzed by means of a visual analogue scale, and of respiratory muscle strength as measured by maximum respiratory pressures and lung capacity and volumes before and after application of TENS. Results

Comparison of Transcutaneous Electrical Nerve Stimulation and Parasternal Block for Postoperative Pain Management after Cardiac Surgery

“…Transcutaneous electrical nerve stimulation (TENS) is a noninvasive technique that is effective for postoperative pain management [ 8 , 9 ]. It has been demonstrated to produce effective analgesia and reduce postoperative opioid requirements in patients undergoing cardiac surgery, and it has no side effects [ 10 ]. It is a comfortable, noninvasive, and nonpharmacological method, which can be easily performed.…”

Estimulação elétrica nervosa transcutânea após cirurgia de revascularização miocárdica

“…Since the 1970s, the effects of TENS have been studied on acute and chronic pain. Some studies were extended to also benefit the algesic processes occurring in the postoperative period [25].…”

Estimation of lung vital capacity before and after coronary artery bypass grafting surgery: a comparison of incentive spirometer and ventilometry

“…Gregorini et al . [23] reported that patients in post operatory of cardiac surgery showed decreased volumes and pulmonary capacities, therefore reducing the quantity of deep inspirations and cough effectiveness. The lessening of deep inspiration and cough has been proposed to predispose respiratory complications in which atelectasis is the most frequent, reaching approximately 64% of operated patients [23].…”

“…To analyze data normality Kolmogorov-Smirnov test was applied. Since data was regularly distributed the correlation assessment between DVC measured with ventilometer and incentive inspirometer was based on Pearson correlation coefficient [23,25]. T-student test for independent samples was used to compare patients' variables in pre and post operatory periods.…”