Abstract
This study investigated the effects of 670 nm laser, at different fluences, on the viability of skin flap in rats. One hundred male animals were used. The animals were divided into control group; group treated with 3 J/cm2; group treated with 6 J/cm2; group treated with 12 J/cm2 and group treated with 24 J/cm2. The skin flap was made on the backs of all animals studied, with a plastic sheet interposed between the flap and the donor site. Laser irradiation was done immediately after the surgery and on days 1, 2, 3 and 4 after surgery. The percentage of necrosis of the flap was calculated at the 7th postoperative day. Additionally, a sample of each flap was collected to enable us to count the blood vessels. Treated animals showed a statistically significant smaller area of necrosis than did the control group. The necrosis in the treated groups was 41.82% (group 2), 36.51% (group 3), 29.45% (group 4) and 20.37% (group 5). We also demonstrated that laser irradiation at 670 nm, at all doses used, had a stimulatory effect on angiogenesis. Our study showed that the 670 nm laser was efficient to increase the viability of the skin flap, at all fluences used, with a tendency of reaching better results at higher doses.
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References
Kubota J (2002) Effects of diode laser therapy on blood flow in axial pattern flaps in the rat model. Lasers Med Sci 17:146–153
Kerrigan CL (1993) Skin flap failure: pathophysiology. Plast Reconstr Surg 72:766–777
Pinfildi CE, Liebano RE, Hochaman BS, Ferreira LM (2005) Helium-neon laser in viability of random skin flap in rats. Lasers Surg Med 37:74–77
Prado RP, Pinfildi CE, Liebano RE, Hochaman BS, Ferreira LM (2005) Diode laser in viability of random skin flap in rats (abstract). Photomed Laser Surg 23:115
Smith RJ, Bindorf M, Gluck G, Hammond D, Moore WD (1992) The effect of low-energy laser on skin-flap survival in the rat and porcine animal models. Plast Reconstr Surg 89:306–310
Reddy GK (2003) Comparison of the photostimulatory effects of visible He-Ne and infrared Ga-As lasers on healing impaired diabetic rat wounds. Lasers Surg Med 33:344–351
Mester E, Mester AF, Mester A (1985) The biomedical effects of laser application. Lasers Surg Med 5:31–39
Dortbudak O (2000) Biostimulation of bone marrow cells with a diode soft laser. Clin Oral Implants Res 16:540–545
Karu TI, Lubart R (2000) Effects of low-power light on biological systems V. Proceedings of SPIE, Amsterdam, Netherlands, pp 01–17
Basford JR (1995) Low-intensity laser therapy: still not an established clinical tool. Lasers Surg Med 16:331–342
Beckerman H, de Bie R, Boulter L, De Cuyper H, Oostendorp R (2002) The efficacy of laser therapy for musculoskeletal and skin disorders: a criteria based meta-analysis of randomized clinical trials. Phys Ther 72:483–491
Yu SY, Chiu JH, Yang SD, Hsu YC, Lui WY, Wu CW (2006) Biological effect of far-infrared therapy on increasing skin microcirculation in rats. Photodermatol Photoimmunol Photomed 22:78–86
Coombe AR, Ho C, Philips JR Chapple CC (2006) The effects of low level laser irradiation on osteoblastic cells. Clin Orthod Res 4:3–14
Amir A, Solomon AS, Giler S, Cordoba M, Hauben DJ (2000) The influence of helium-neon laser irradiation on the viability of skin flaps in the rat. Br J Plast Surg 53:58–62
Sasaki GH, Pang CY (1980) Hemodynamics and viability of acute neurovascular island skin flaps in rats. Plast Reconstr Surg 198 65:152–158
Kaufman T, Angel MF, Eichenlaub EH, Levin M, Hurwitz DJ, Futrell JW (1985) The salutary effects of the bed on the survival of experimental flaps. Ann Plast Surg 14:64–73
Chang H, Minn KW, Imanishi K, Minabe T, Nakajima T (2007) Effect of venous superdrainage on a four-territory skin flap survival in rats. Plast Reconstr Surg 119:2046–2051
Corazza AV, Jorge J, Kurachi C, Bagnato V (2007) Photobiomodulation on the angiogenesis of skin wounds in rats using different light sources. Photomed Laser Surg 25:102–106
Enwemeka CS, Conhen-Kornberg E, Duswalt EP, Weber DM, Rodriguez IM (1994) Biomechanical effects of three different periods of GaAs laser photostimulation on tenotomized tendons. Laser Ther 6:181–188
Salate ACB, Barbosa G, Gaspar P, Carrinho P, Koeke P, Parizotto N (2005) Effect of In-Ga-Al-P diode laser irradiation on angiogenesis in partial ruptures of Achilles tendon in rats. Photomedicine Laser Surg 23:470–475
Wilden L, Karthein R (1998) Import of radiation phenomena of electrons and therapeutic low-level laser in regard to the mitochondrial energy transfer. J Clin Laser Med Surg 16:159–165
Kipshidze N, Nikolaychik V, Keelan MH, Shankar LR, Khanna L, Kornowski R, Leon M, Moses J (2001) Low-power helium-neon laser irradiation enhances production of vascular endothelial growth factor and promotes growth of endothelial cells in vitro. Lasers Surg Med 28:355–364
Kubota J, Oshiro T (1996) The effects of diode laser LLLT on flap survival: measurement of flap microcirculation with laser speckle flowmetry. Laser Ther 8:241–246
Byrnes KR, Waynant RW, Ilev IK, Wu X, Barna L, Smith K, Heckert R, Gerst H, Anders JJ (2005) Light promotes regeneration and functional recovery and alters the immune response after spinal cord injury. Lasers Surg Med 36:171–85
Moore P, Ridgway TD, Higbee RG, Howard EW, Lucroy MD (2005) Effect of wavelength on low-intensity laser irradiation-stimulated cell proliferation in vitro. Lasers Surg Med 1:8–12
Kujawa J, Zavodnik L, Zavodnik I, Buko V, Lapshyna A, Bryszewska M (2004) Effect of low-intensity (3.75–25 J/cm2) near-infrared (810 nm) laser radiation on red blood cell ATPase activities and membrane structure. J Clin Laser Med Surg 22:111–117
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Bossini, P.S., Fangel, R., Habenschus, R.M. et al. Low-level laser therapy (670 nm) on viability of random skin flap in rats. Lasers Med Sci 24, 209–213 (2009). https://doi.org/10.1007/s10103-008-0551-5
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DOI: https://doi.org/10.1007/s10103-008-0551-5