Local anesthesia of the mandibular nerve for mandibulectomy in dog: case report

Abstract

Fibrosarcomas are malignant mesenchymal malignancies of fibroblasts that produce connective tissue and collagen, being more observed in the skin, mouth and subcutaneous tissue of dogs. Pain control has been an important topic in both human and veterinary medicine over the last few decades. In this way, local anesthesia has been increasingly used as an adjunct to general anesthesia techniques during dental procedures in animals. A canine was attended at the Veterinary Hospital of the Federal University of Piauí in Teresina, presenting a mass in the region of the left mandible at about 5 months and with faster growth in the last month, normorexia, normodipsia, normouria, normochia. Physical examination revealed a rectal temperature of 38.8 ° C, hydrated, rate without alteration of rhythm and frequency, strong pulse, alertness, normocorous mucosa, left submandibular reactive lymph node and mass in the left mandibular region 6x6 cm. Cytological examination was suggestive of malignant mesenchymal neoplasia. A serological test was performed for Erlichiosis, with a positive result, chest X-ray without alterations, skull radiography showing a circular mass in the left mandible with bone destruction. Treatment was then made for Erlichiosis using doxycycline and imidocarb as the main medication. The surgery performed was the mandibulectomy central and rostral of the left mandible. In view of the above, this report aims to describe the case of a canine with fibrosarcoma in the oral cavity, attended at the Veterinary Hospital of the Federal University of Piauí, highlighting the importance of the use of local blocks for pain control.