Thorac Cardiovasc Surg 2015; 63(06): 514-518
DOI: 10.1055/s-0035-1544212
Original Thoracic
Georg Thieme Verlag KG Stuttgart · New York

Comparison of Transcutaneous Electrical Nerve Stimulation and Paravertebral Block for Postthoracotomy Pain Relief

Elif Dogan Baki
1   Department of Anesthesiology and Reanimation, Faculty of Medicine, Afyon Kocatepe University, Afyon, Turkey
,
Gürhan Öz
2   Department of Thoracic Surgery, Faculty of Medicine, Afyon Kocatepe University, Afyon, Turkey
,
Serdar Kokulu
1   Department of Anesthesiology and Reanimation, Faculty of Medicine, Afyon Kocatepe University, Afyon, Turkey
,
Alper Murat Ulaşlı
3   Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Afyon Kocatepe University, Afyon, Turkey
,
Yüksel Ela
1   Department of Anesthesiology and Reanimation, Faculty of Medicine, Afyon Kocatepe University, Afyon, Turkey
,
Remziye Gul Sıvacı
1   Department of Anesthesiology and Reanimation, Faculty of Medicine, Afyon Kocatepe University, Afyon, Turkey
,
Hasan Şenay
1   Department of Anesthesiology and Reanimation, Faculty of Medicine, Afyon Kocatepe University, Afyon, Turkey
,
Gökcen Doğan
2   Department of Thoracic Surgery, Faculty of Medicine, Afyon Kocatepe University, Afyon, Turkey
› Author Affiliations
Further Information

Publication History

11 July 2014

28 November 2014

Publication Date:
16 February 2015 (online)

Abstract

Background Inadequate relief of postthoracotomy pain is a major reason of increased occurrence of postoperative complications. We aimed to investigate and compare the effects of transcutaneous electrical nerve stimulation (TENS) and paravertebral block (PVB) to relieve pain after thoracotomy procedures.

Materials and Methods We studied 40 patients who underwent thoracotomy. Patients were randomly allocated to receive either PVB (group P, n = 20) or TENS (group T, n = 20) for postoperative pain. The electrodes of TENS were placed 2 cm under and 2 cm over the thoracotomy cut on both posterior and anterior sides. The surgeon inserted paravertebral catheters using direct vision at the end of the surgery. A patient-controlled analgesia (PCA) device was connected to all patients. Visual analog scales, patient demand, and consumption of tramadol were evaluated postoperatively.

Results Mean visual analog scale (VAS) values were significantly lower in group P for all time points. The patients in group P needed lower amounts of opioid (tramadol) and the difference was statistically significant (258.4 ± 13.52 mg vs. 314.4 ± 8.65 mg, p = 0.005). In addition, the number of demand attempts recorded from the PCA device was significantly lower in group P (14.95 ± 13.64 vs. 26.7 ± 17.34, respectively and p < 0.001).

Conclusion TENS has beneficial effects for pain relief after thoracotomy, without any side effects; however, it cannot provide sufficient pain relief when compared with PVB.

 
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