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Lasers in Medical Science

, Volume 29, Issue 3, pp 1195–1202 | Cite as

The effects of LED emissions on sternotomy incision repair after myocardial revascularization: a randomized double-blind study with follow-up

  • Rauirys Alencar de Oliveira
  • Gilderlene Alves Fernandes
  • Andréa Conceição Gomes Lima
  • Antônio Dib Tajra Filho
  • Raimundo de Barros AraújoJr.
  • Renata Amadei Nicolau
Original Article

Abstract

This study aimed to analyze the effects of light-emitting diode (LED) therapy on sternotomy pain and healing in patients who underwent coronary artery bypass grafting (CABG). The patients were followed for 6 months after the surgery to determine their dehiscence. This study was conducted with 90 volunteers who electively submitted to CABG. The volunteers were randomly allocated into three different groups of equal size: LED (λ of 640 ± 20 nm and spatial average energy fluency of 1.2 J/cm2 during hospitalization), placebo, or control. The outcomes assessed were pain when coughing by a visual analog scale (VAS) and the McGill questionnaire and sternotomy healing by clinical assessment and photographical register end interpretation. The LED group had better pain reduction, as indicated by both the VAS and the McGill questionnaire (number of words chosen and pain index) (p ≤ 0.05), on days 6 and 8 after hospital discharge compared to the placebo and control groups. One month after surgery, almost no individual mentioned pain when coughing. Three researchers blindly analyzed the incision photographs to determine hyperemia and wound closure, and they found that the LED group had both less hyperemia and less incision bleeding or dehiscence. The LED therapy (640 nm) had an analgesic effect on the sternotomies of patients who underwent CABG, increasing their incision healing and preventing dehiscence.

Keywords

Coronary-artery bypass grafting Light-emitting diode Sternotomy Pain Incision healing 

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Copyright information

© Springer-Verlag London 2013

Authors and Affiliations

  • Rauirys Alencar de Oliveira
    • 1
    • 2
  • Gilderlene Alves Fernandes
    • 2
  • Andréa Conceição Gomes Lima
    • 3
  • Antônio Dib Tajra Filho
    • 4
  • Raimundo de Barros AraújoJr.
    • 4
  • Renata Amadei Nicolau
    • 1
  1. 1.Lasertherapy and Photobiology Center, Research and Development Institute (IP&D)Universidade do Vale do Paraíba (UNIVAP)São PauloBrazil
  2. 2.Novafapi CollegeTeresinaBrazil
  3. 3.University of Piauí State (UESPI)TeresinaBrazil
  4. 4.Cardiac Surgery DepartmentSanta Maria HospitalTeresinaBrazil

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