Short-term transcutaneous electrical nerve stimulation after cardiac surgery: effect on pain, pulmonary function and electrical muscle activity

a Cardiovascular Surgery Division, Department of Surgery, Federal University of São Paulo, Napoleão de Barros, 715, 3rd floor, 04023-002, São Paulo, SP, Brazil b Cardiology Division, Department of Medicine, Federal University of São Paulo, São Paulo, Brazil *Corresponding author. Tel.: +(55) (11) 55...

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Published in:Interactive cardiovascular and thoracic surgery 2008-08, Vol.7 (4), p.539-543
Main Authors: Cipriano, Gerson, Jr, Camargo Carvalho, Antonio Carlosde, Bernardelli, Graziella Franca, Tayar Peres, Paulo Alberto
Format: Article
Language:English
Subjects:
Adult
Aged
Cardiac Surgical Procedures - adverse effects
Electromyography
Female
Humans
Male
Middle Aged
Muscle, Skeletal - physiopathology
Pain Measurement
Pain, Postoperative - etiology
Pain, Postoperative - physiopathology
Pain, Postoperative - prevention & control
Postoperative Care
Prospective Studies
Pulmonary Ventilation
Respiratory Mechanics
Spirometry
Tidal Volume
Time Factors
Transcutaneous Electric Nerve Stimulation
Vital Capacity
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Summary:a Cardiovascular Surgery Division, Department of Surgery, Federal University of São Paulo, Napoleão de Barros, 715, 3rd floor, 04023-002, São Paulo, SP, Brazil b Cardiology Division, Department of Medicine, Federal University of São Paulo, São Paulo, Brazil *Corresponding author. Tel.: +(55) (11) 55754055; fax: +(55) (11) 55712719. E-mail address : ciprianeft.dcir{at}epm.br (G. Cipriano Jr.). This study aimed to evaluate the effectiveness of transcutaneous electrical nerve stimulation (TENS) for treatment of postoperative pain in patients who underwent cardiac surgery. In addition, we sought to determine whether TENS would be related to improved pulmonary function and muscle electrical activity in this patient population. Forty-five patients, 32 males and 13 females, aged 41–74 years were randomly allocated to receive TENS ( n =23) or sham treatment ( n =22) during 4 h on the third postoperative day. A 0–10 visual analogic scale was used to assess pain; lung function was evaluated by spirometry and surface electromyography ( n =10 in each group) was used to quantify electrically-induced muscle activity ( trapezius and pectoralis major ). TENS was associated with significant reductions on spontaneous and cough-induced postoperative pain as compared to sham ( P
ISSN:1569-9293
1569-9285
DOI:10.1510/icvts.2007.168542