Acurácia da ultrassonografia e da avaliação comportamental na determinação das características funcionais de estruturas ovarianas císticas

Abstract

Resumo -O objetivo deste trabalho foi avaliar a acurácia da ultrassonografia e da sintomatologia em determinar características funcionais de estruturas ovarianas císticas. Em 51 vacas Girolando sem corpo lúteo, foram avaliados: presença ou ausência de tecido luteal na parede do folículo; concentrações séricas de progesterona (P4); e sinais comportamentais dos animais (anestro ou ninfomania). As concentrações plasmáticas de P4 foram consideradas como padrão ouro. A avaliação ultrassonográfica foi um método preciso (82,4%) para diagnosticar o tipo de cisto folicular. O anestro está relacionado à presença de cisto luteinizado e à elevada P4. Os cistos não luteinizados são frequentemente encontrados em animais com baixa P4, que apresentam comportamento de anestro ou ninfomania.Termos para indexação: anestro, cisto folicular, cisto luteinizado, Girolando, ninfomania. Accuracy of ultrasound and behavioral assessment in determining functional features of ovarian cystic structuresAbstract -The objective of this work was to evaluate the accuracy of ultrasound and symptomatology in determining functional features of ovarian cystic structures. In 51 Girolando cows, without corpus luteum, the following were evaluated: presence or absence of luteinized tissue on the follicle wall; serum concentrations of progesterone (P4); and animal clinical signals (anestrus or nymphomania). P4 plasma concentrations were considered as the gold standard. Ultrasound evaluation was an accurate (82.4%) method to diagnose the type of follicular cyst. Anestrus is related to the presence of luteinized cysts and high P4 levels. Non-luteinized cysts are often found in animals with low P4, which exhibit anestrus or nymphomaniac behavior.

Reproductive disorders in dairy cows of the southwest of Paraná

“…The most frequent reproductive disorder found in the animals evaluated was follicular cyst, which, together with luteal cyst, represented 16.13% (367/2274) of the disorders. The ultrasonographic examination showed ovarian follicles as non-echotic structures, usually with a thin border, and irregular shape due to the compression of other ovarian structures.According toPalhão et al (2014), the follicular wall is very thin in cases of follicular cysts, and thick in case of luteal cysts, with at least 20 mm in diameter, and absence of corpus luteum. These descriptions were confirmed in the diagnoses of follicular and luteal cysts in the present study.…”