Banca de DEFESA: NATHALIA MARQUES DE OLIVEIRA LEMOS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : NATHALIA MARQUES DE OLIVEIRA LEMOS
DATE: 11/05/2021
TIME: 09:00
LOCAL: plataforma Google Meet ou a combinar
TITLE:

Clinical aspects of the natural canine Dirofilaria immitis infection of patients presented at the Serviço de Cardiologia e Doenças Respiratórias of the Setor de Pequenos Animais of the Hospital Veterinário of the Universidade Federal Rural do Rio de Janeiro.

KEY WORDS:

cardio-respiratory illness, canine heartworm, echodopplercardiogram, chest x-ray

PAGES: 113
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUBÁREA: Clínica e Cirurgia Animal
SPECIALTY: Clínica Veterinária
SUMMARY:

Canine heartworm disease is one of the main cardiorespeiratory parasitic illnesses. It´s main etiological agent is Dirofilaria immitis (Leidy, 1856), that has association with the endosymbiont Wolbachia sp. Many infected dogs are asymptomatic and many times the infection is included in the differential due to a detailed clinical examination or to an microfilariae incidental finding during laboratory work. The clinical signs shown by the symptomatic animals are unspecific, making it difficult for the attending veterinarian to include it in the differential diagnostic work. Therefore, the aim of this work was to analyze the clinical aspects of the older than 12 months dogs presented to the SCDR of the HVPA of the UFRRJ with cardio respiratory illnesses. After the owners formal consent, 26 dogs were submitted to clinical examination (history, anamnesis and physical examination), to laboratory work (complete blood count, microfilariae detection test and antigen test), to chest x-rays and ecodopplercardiogram. Most dogs included in the study, infected (11/26) or not (15/26), presented cough (65.4%) and abnormal lung sounds (81%). Murmur at the tricuspid focus was present in seven dogs (26.9%), four of them were infected (57.1%) and three free of infection (42.9%). The echodopplercardiogram showed tricuspid insufficiency in eight dogs (30.8%), three of them infected (37.5%) and pulmonary insufficiency in 12 (46.1%), six of them were infected (50%). The x-rays showed that most dogs presented altered pulmonary patterns (88.5%). Bronchial pattern was present in 45.5% of the infected dogs and in 46.7% of the free of infection. The interstitial pattern was present in 18.2% of the infected and in 6.7% of the uninfected. None of the examined dogs presented a set of signs that could denote pulmonary hypertension although high pulmonary pressure was indicated by scarce parameters. Worms were visualized by echodopplercardiogram in 45.5% of the infected dogs. The blood work showed that the infected dogs presented smaller red blood cells with lesser hemoglobin concentration when compared to the naïve dogs, although they were not anemic. The performed evaluations showed that all included dogs did not present severe disease, were they infected or not. Since heartworm disease is a cardio respiratory disease undifferentiated from generally caused cardio respiratory illnesses, it was mandatory to perform parasitological assays, were they microfilariae or specific antigen tests or even the worm detection by echodopplercardiogram, despite its low sensitivity. It could be concluded that the owners most claimed complaint was cough, that could be confirmed by the attending veterinarians during physical examination. Most dogs presented tricuspid murmur, altered pulmonary sounds, tricuspid and pulmonary valves insufficiency and bronchial or interstitial patterns of the pulmonary parenchyma.

BANKING MEMBERS:
Externo ao Programa - 1120060 - ALEXANDRE JOSE RODRIGUES BENDAS
Interna - 2572430 - CRISTIANE DIVAN BALDANI
Externo à Instituição - FLAVYA MENDES DE ALMEIDA - UFF
Externo à Instituição - LEUCIO CÂMARA ALVES - UFRPE
Presidente - 387386 - MARTA FERNANDA ALBUQUERQUE DA SILVA