Effects of low-level laser therapy on pain and scar formation after inguinal herniation surgery: a randomized controlled single-blind study
Carvalho RL, Alcântara PS, Kamamoto F, Cressoni MD, Casarotto RA
Photomedicine and laser surgery · 32 citas
Etiquetas de revisión
Financiación no declaradaDatos neutrales que nuestra revisión registró sobre cómo se hizo este estudio. Describen el método, nunca si nos gusta el resultado.
Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2009-10-12 · Photomed Laser Surg · vol. 28 · número 3 · págs. 417–422
- Editorial
- Mary Ann Liebert, Inc.
- Citado
- 44 citas · más que el 20% de estudios similares · 0.0× el promedio de su campo
- Referencias
- 40 trabajos
- Acceso
- Acceso abierto (copia en repositorio) · OTHER-OA
- Áreas de investigación
- Laser Applications in Dentistry and Medicine · Dermatologic Treatments and Research · Hernia repair and management
- Palabras clave
- low-level laser therapy, inguinal hernia repair, postoperative pain, scar formation, keloid prevention, infrared diode laser, Vancouver Scar Scale, scar thickness, tissue repair
- MeSH
- cicatrix, humans, hernia, inguinal, keloid, postoperative complications, pain measurement, single-blind method, wound healing, adult, middle aged, low-level light therapy, postoperative pain
5 autores
- Rodrigo Leal de Paiva Carvalho🇧🇷Universidade de São Paulo
- Paulo Sérgio Martins de Alcântara🇧🇷Universidade de São Paulo; Hospital Universitário da Universidade de São Paulo
- Fábio Kamamoto🇧🇷Universidade de São Paulo
- Marcela Dalla Costa Cressoni🇧🇷Universidade de São Paulo
- Raquel Aparecida Casarotto🇧🇷 · autor de correspondenciaUniversidade de São Paulo
Resumen
El texto original del estudio, en el idioma en que se publicó.
Objective
The aim of this study was to investigate the efficacy of an infrared GaAlAs laser operating with a wavelength of 830 nm in the postsurgical scarring process after inguinal-hernia surgery.
Background
Low-level laser therapy (LLLT) has been shown to be beneficial in the tissue-repair process, as previously demonstrated in tissue culture and animal experiments. However, there is lack of studies on the effects of LLLT on postsurgical scarring of incisions in humans using an infrared 830-nm GaAlAs laser.
Method
Twenty-eight patients who underwent surgery for inguinal hernias were randomly divided into an experimental group (G1) and a control group (G2). G1 received LLLT, with the first application performed 24 h after surgery and then on days 3, 5, and 7. The incisions were irradiated with an 830-nm diode laser operating with a continuous power output of 40 mW, a spot-size aperture of 0.08 cm(2) for 26 s, energy per point of 1.04 J, and an energy density of 13 J/cm(2). Ten points per scar were irradiated. Six months after surgery, both groups were reevaluated using the Vancouver Scar Scale (VSS), the Visual Analog Scale, and measurement of the scar thickness.
Results
G1 showed significantly better results in the VSS totals (2.14 +/- 1.51) compared with G2 (4.85 +/- 1.87); in the thickness measurements (0.11 cm) compared with G2 (0.19 cm); and in the malleability (0.14) compared with G2 (1.07). The pain score was also around 50% higher in G2.
Conclusion
Infra-red LLLT (830 nm) applied after inguinal-hernia surgery was effective in preventing the formation of keloids. In addition, LLLT resulted in better scar appearance and quality 6 mo postsurgery.
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