Background: The purpose of this study was to determine the effects of combined use of L-carnitine and vitamin C on partially burned skin flap in an experimental rat model.
Material/methods: In the rat dorsal skin, a 10 x 3 cm flap was marked. The most distal 3 x 3 cm part was burned to full thickness. Twenty-four rats were randomized into four groups with 6 animals in each. Group 1 was simply followed up. Group 2 was given 0.5 mg/kg vitamin C per day for 7 days, group 3 100 mg/kg carnitine per day for 7 days, and group 4 both carnitine and vitamin C. On the eighth postoperative day, the animals were sacrificed and examined. The surviving and necrotic areas were determined by macroscopic examination and measured with a planimeter.
Results: The areas of flap necrosis were measured. The median surviving areas and areas of flap necrosis, respectively, of the groups were: group 1, 16.0 cm(2) and 14.0 cm(2); group 2, 18.25 cm(2) and 11.75 cm(2); group 3, 20.0 cm(2) and 10 cm(2) ; and group 4, 23.75 cm(2) and 6.25 cm(2). The surviving areas of the groups were found to be significantly different (p=0.000).
Conclusions: The risk of ischemia-induced necrosis in flap attempts made in damaged tissues may be reduced by the combination of two promising agents, L-carnitine and vitamin C. L-carnitine appears to be the major contributing factor that reduces necrosis, and vitamin C an additive agent.
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