Comparison of the two treatment protocols for wound myiasis in dogs referred to veterinary teaching hospital

Subject Areas : clinical veterinary science

S. Mohit Maf, ¹ (Department of clinical sciences, Faculty of veterinary medicine, Karaj branch, Islamic Azad University, Karaj, Iran)
S.Sh.R Shojaei, ² (Department of pathobiology, Faculty of veterinary medicine, Karaj branch, Islamic Azad University, Karaj, Iran)

Received: 2016-11-02 Accepted : 2016-11-02 Published : 2011-03-21

Keywords: Wound healing, Myiasis, Permethrin,

Abstract :

Wound discharge and necrotized tissue are attractive for flies to lay their eggs on wounds. Open wound myiasis occurs when the eggs convert to larva and they start to feed on debris and discharges of the wound. Complete removal of larva and controlling the infection are the important steps for wound myiasis treatment. At least three days of hatching is required for converting the eggs to larva. Re-infestation of wounds may occur, even in a fly free environment, as the flies lay their eggs on different days. This study was conducted to compare the effectiveness of mechanical removal of maggots with or without application of Permethrin 5% Cream on 8 dogs suffering from wound myiasis. To evaluate the effectiveness of the two treatment protocols, re-infestation and wound healing were monitored on third, sixth and ninth days post treatment. Results showed that, although Permethrin 5% cream will prevent the re-infestation of wounds by larva, but have some adverse effects on wound healing. In comparison, mechanical removal of the larva without application of Permetrin will not prevent the re–infestation while provide an optimal wound healing process. According to the results, a minimum of two examinations with three days interval is necessary for the assurance of elimination of all larvas for wound myiasis treatment.