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Low-intensity laser (660 NM) has analgesic effects on sternotomy of patients who underwent coronary artery bypass grafts


1 Lasertherapy and Photobiology Center, Research and Development Institute, IP&D, Universidade do Vale do Paraíba, São Paulo; Uninovafapi Universitary Center (UNINOVAFAPI), Brazil
2 Department of Cardiac Surgery, Santa Maria Hospital, Bairro Centro, Brazil
3 Lasertherapy and Photobiology Center, Research and Development Institute, IP&D, Universidade do Vale do Paraíba, São Paulo; Department of Physical Therapy, University of Piauí State, PI, Brazil
4 Uninovafapi Universitary Center (UNINOVAFAPI); Department of Physical Therapy, University of Piauí State, PI, Brazil
5 Lasertherapy and Photobiology Center, Research and Development Institute, IP&D, Universidade do Vale do Paraíba, São Paulo, Brazil

Correspondence Address:
Gilderlene Alves Fernandes
Vitorino Orthiges Fernandes Street, 6321, Bairro Uruguai, Teresina, PI
Brazil
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9784.197836

Clinical trial registration RBR-38wgx6

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Year : 2017  |  Volume : 20  |  Issue : 1  |  Page : 52-56

 

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Background: The aim of this study was to evaluate the efficacy of low-level laser therapy for reducing the acute pain of sternotomy in patients who underwent a coronary artery bypass graft (CABG). Methods: This study was conducted with ninety volunteers who electively submitted to CABG. The volunteers were randomly allocated into three groups of equal size (n = 30): control, placebo, and laser (λ of 660 nm and spatial average energy fluency of 1.06 J/cm 2 ). Pain when coughing was assessed by a visual analog scale (VAS) and McGill Pain Questionnaire, according to sensory, affective, evaluative, and miscellaneous domains. The patients were followed for 1 month after the surgery. Results: The laser group had a greater decrease in pain with analogous results, as indicated by both the VAS and the McGill questionnaire (P ≤ 0.05) on sensory and affective scores, on days 6 and 8 postsurgery compared to the placebo and control groups. Conclusion: Laser seems to be effective promoting pain reduction after coronary-arterial bypass grafting.






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1 Lasertherapy and Photobiology Center, Research and Development Institute, IP&D, Universidade do Vale do Paraíba, São Paulo; Uninovafapi Universitary Center (UNINOVAFAPI), Brazil
2 Department of Cardiac Surgery, Santa Maria Hospital, Bairro Centro, Brazil
3 Lasertherapy and Photobiology Center, Research and Development Institute, IP&D, Universidade do Vale do Paraíba, São Paulo; Department of Physical Therapy, University of Piauí State, PI, Brazil
4 Uninovafapi Universitary Center (UNINOVAFAPI); Department of Physical Therapy, University of Piauí State, PI, Brazil
5 Lasertherapy and Photobiology Center, Research and Development Institute, IP&D, Universidade do Vale do Paraíba, São Paulo, Brazil

Correspondence Address:
Gilderlene Alves Fernandes
Vitorino Orthiges Fernandes Street, 6321, Bairro Uruguai, Teresina, PI
Brazil
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9784.197836

Clinical trial registration RBR-38wgx6

Rights and Permissions

Background: The aim of this study was to evaluate the efficacy of low-level laser therapy for reducing the acute pain of sternotomy in patients who underwent a coronary artery bypass graft (CABG). Methods: This study was conducted with ninety volunteers who electively submitted to CABG. The volunteers were randomly allocated into three groups of equal size (n = 30): control, placebo, and laser (λ of 660 nm and spatial average energy fluency of 1.06 J/cm 2 ). Pain when coughing was assessed by a visual analog scale (VAS) and McGill Pain Questionnaire, according to sensory, affective, evaluative, and miscellaneous domains. The patients were followed for 1 month after the surgery. Results: The laser group had a greater decrease in pain with analogous results, as indicated by both the VAS and the McGill questionnaire (P ≤ 0.05) on sensory and affective scores, on days 6 and 8 postsurgery compared to the placebo and control groups. Conclusion: Laser seems to be effective promoting pain reduction after coronary-arterial bypass grafting.






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