Miíase grave causada por Cochliomyia hominivorax em cão: relato de caso

Abstract

Infestation by larvae of Cochliomyia hominivorax is a serious problem that affects homeothermic vertebrates. This example of parasitosis is an important complicating factor in skin disorders such as massive infestations by ticks, skin abrasions from scratches and bites, inflamed processes with secretions, among difficulties in other companion animals. When not properly treated, it can evolve with health problems, weight, and weight, due to toxemia, hemorrhage, and tissue position necrosis. Thus, the objective of this study was to report the use of surgical debridement to treat the case of a dog affected by advanced myiasis by C. hominivorax, which arrived for clinical care, late, with an extensive bite wound with considerable necrosis region. During treatment, the animal was prostrate, so it was stabilized and treated with a protocol based on nitenpyram, fluid therapy plus glucose, antiinflammatory (meloxicam 0,2%), and antibiotic therapy (amoxicillin trihydrate). Manual removal of the remaining larvae is carried out with subsequent identification of the species through the presence of tracheal tubes with dark pigmentation in the posterior region. The affected area was properly shaved and the wound ascleaned with a solution of potassium permanganate 100 mg and 2% chlorhexidine, using ointment and healing spray with repellent action and covering the lesion with a non-compressive bandage to prevent new up. However, due to the severity and extent of necrotic lesions, the aforementioned treatment was not sufficient, requiring intervention through surgical debridement to remove devitalized tissues and all healthy tissue regeneration. After the procedure, the animal showed considerable improvement and continued to be monitored for 90 days until its complete recovery. Thus, it can be concluded that the parasitosis caused by C. hominivorax, if not treated early, can have a serious evolution. It also highlighted the importance of caring for companion animals to avoid previous injuries and the prevention and control of Diptera as a way to combat this disease. Low not least, it should be noted that an effective and individualized therapeutic protocol is essential for the patient's full recovery. Surgical debridement is an essential procedure in cases of advanced myiasis with necrotic tissue.