PMID: 25734046Jul 1, 2012Paper

The effect of enoxaparin and clopidogrel on survival of random skin flap in rat animal model

World Journal of Plastic Surgery
Mohammad Javad FatemiMir Sepehr Pedram

Abstract

Necrosis of skin flaps is considered as an important complication in reconstructive surgery. We conducted an experimental study to investigate the efficacy of low-molecular weight heparin, clopidogrel and their combination to improve the flap survival. Forty male, adult Sprague-Dawlay rats were divided randomly into 4 groups. Standard rectangular, distally based dorsal random pattern skin flap was elevated. To prevent the graft effect, a sterile sheet was put under the flap. No pharmacological agent was administered for the control group. In group 2, single subcutaneous dose of enoxaparin (3.2 mg/kg) was immediately administrated after surgery. In group 3, clopidogrel (25 mg/kg) was given orally for 7 days. In group 4, both enoxaparin and clopidogrel were administrated. The rats were evaluated on post-operative day 7 for viable and necrotic portions of flaps. The mean and SD of necrosis was 17.79+2.5 cm in the control group, 16.20±3.1 cm in low-molecular weight heparin, 15.25+3.8 cm in combined therapy group and 13.69+2.7 cm in clopidogrel group. Clopidogrel was the only pharmaceutical agent that produced a significant increase in the flap survival area. Clopidogrel may be an effective pharmaceutical agent that significantly in...Continue Reading

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