ERLIQUIOSE CANINA COMO DIFERENCIAL À SÍNDROME DO CÃO TREMEDOR: RELATO DE CASO

• DOI: https://doi.org/10.22533/at.ed.3441225090611

• Palavras-chave: Tremor, ascite, efusão, síndrome neurológica

• Keywords: Tremor; ascites; effusion; neurologic syndrome

• Abstract: A case report was prepared of a 9-year-old, approximately 30-kg female Akita that presented with lethargy, generalized tremors involving the body and head, an edematous (distended) abdomen, tachypnea, tachycardia, and sialorrhea (hypersalivation). The owner reported administering an ectoparasiticide one month earlier, and that for at least 15 days the patient had been apathetic, with a dry cough and tremors in the pelvic limbs. A rapid test for ehrlichiosis was performed and yielded a negative result. Subsequently, a manually performed complete blood count (CBC) revealed anemia and thrombocytopenia, and evidence of ehrlichiosis. Diagnostic imaging detected ascites and pleural effusion. Thoracocentesis was performed, and a therapeutic protocol was initiated with furosemide and doxycycline (200 mg). On the following day, CBC, serum biochemistry, and urinalysis were repeated; anemia with thrombocytopenia persisted. Doxycycline was continued, and Organoneurocerebral, prednisolone, and Xantinon Liquid were added. The patient was discharged, and the owner was instructed to return in seven days. Upon re-evaluation at the Veterinary Teaching Hospital (HVU), a significant improvement was observed: tremors had resolved, appetite was normal, ambulation was normal, feces and urine were normal, and overall appearance was unremarkable. Initially, Shaker Dog Syndrome (generalized tremor syndrome) had been considered, given the negative rapid test and the absence of a reported tick exposure history. However, identification of Ehrlichia canis on hematologic evaluation and the favorable clinical response to doxycycline ruled out the initial diagnosis, supporting a final diagnosis of ehrlichiosis.