The effects of different doses of 670 nm diode laser on skin flap survival in rats

Acta Cirurgica Brasileira

Cristiano Schiavinato Baldan²  Amélia Pasqual Marques¹  Alessandra Maria Schiavinato¹  Raquel Aparecida Casarotto¹ 

[1] ,Sao Paulo Metodista University Physical Therapy Department Sao Paulo,Brazil

关键词: Surgical Flaps;    Laser Therapy;    Low-Level;    Lasers;    Semiconductor;    Rats;    Retalhos Cirúrgicos;    Terapia a Laser de Baixa Intensidade;    Lasers Semicondutores;    Ratos;   

DOI  :  10.1590/S0102-86502012000200010

来源: SciELO

【 摘 要 】

PURPOSE: To investigate the effects of different low-level laser therapy (LLLT) doses on random skin flap rats. METHODS: Forty Wistar rats were randomly divided in four groups. The control group (CG) was not irradiated. The experimental groups were irradiated with a diode laser 670 nm with different energies per point: group 2 (G2) with 0.06 J; group 3 (G3) 0.15 J and group 4 (G4) 0.57 J. The three groups were irradiated in 12 equally distributed points in the cranial skin flap portion. They were submitted to the irradiation during the immediate, first and second postoperative days. The necrosis area was evaluated in the seventh postoperative day. RESULTS: The CG shows 49.35% of necrosis area in the skin flap; G2, 39.14%; G3, 47.01% and G4, 29.17% respectively. There was a significantly difference when G4 was compared with CG`s skin flap necrosis area. CONCLUSION: The low-level laser therapy diode 670 nm with 0.57 J energy per point increases the survival in randomic skin flap rats.

【 授权许可】

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