Artículos de revistas
Unusual caudal vena cava thrombosis in a cow, secondary to Trueperella (Arcanobacterium) pyogenes infection
Fecha
2016-07-01Registro en:
Pesquisa Veterinaria Brasileira, v. 36, n. 7, p. 587-590, 2016.
1678-5150
0100-736X
10.1590/S0100-736X2016000700004
S0100-736X2016000700587
2-s2.0-84988603141
S0100-736X2016000700587.pdf
2209124317273797
Autor
Universidade Estadual Paulista (Unesp)
Universidade Estadual do Centro Oeste do Paraná (UniCentro)
Universidade Estadual de Maringá (UEM)
Universidade Estadual de Feira de Santana (UEFS)
Universidade de Rio Verde (UniRV)
Mississippi State University
Institución
Resumen
The caudal vena cava thrombosis, or pulmonary thromboembolism, in cattle is correlated with lactic acidosis, caused by diets rich in grains and highly fermentable, associated or not to septic situations, used in feedlots of beef or high-producing dairy cattle. This paper reports an unusual caudal vena cava thrombosis in a cow, secondary to Trueperella (Arcanobacterium) pyogenes infection, resulting in reduced milk production, anorexia, pale mucous membranes, ruminal atony, sternal decubitus and autoauscultation position. The heart was enlarged at necropsy, presence of clots distributed along the thoracic cavity, adherence between lung and pleura, abscesses, emphysema, petechiae, suffusions and ecchymosis in lungs, thickening of the caudal vena cava wall, hepatomegaly with chronic passive congestion (nutmeg aspect), and rumenitis. In lab, the actinomycete Trueperella (Arcanobacterium) pyogenes was isolated from liver and lung samples, probably resulting through dissemination of the bacteria of the rumen content, what reaffirms the opportunistic behavior of this actinomycete.