Banca de DEFESA: CAMILA SILVA COSTA FERREIRA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : CAMILA SILVA COSTA FERREIRA
DATE: 28/02/2024
TIME: 08:00
LOCAL: vídeoconferência
TITLE:

Difference in uterine hemodynamics of mares with clinical, subclinical and without endometritis.

KEY WORDS:

Ultrasound, Doppler, uterine infection, equine, diagnosis.

PAGES: 86
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUBÁREA: Reprodução Animal
SPECIALTY: Fisiopatologia da Reprodução Animal
SUMMARY:

Equine endometritis is considered the third main disease of the species and the cause of the greatest economic losses in equine reproduction due to early pregnancy failures. However, there are no reports describing and evaluating the application of Power Flow and spectral Doppler ultrasound in the diagnosis of endometritis or the formation of a pattern of vascularization of the uterine segments when evaluating mares with or without endometritis. Therefore, the general objective of the project is to form a standard in differentiating the uterine hemodynamics of mares with or without endometritis. The project was carried out in the equine farming sector at UFRRJ. 45 mares were used, divided into three groups: G1 – group of mares without endometritis (n:16 mares); G2 – group of mares with subclinical endometritis (n:15 mares); G3 – group of mares with clinical endometritis (n:14 mares). In experiment 1, an evaluation of the mares was carried out (reproductive history and ultrasound). The estrous cycle was then monitored until a pre-ovulatory follicle was observed. From there, samples were collected for cytological examination, fungal and bacterial culture. With the induction and detection of ovulation, the mares were monitored by B-mode transrectal ultrasound (US) and US Doppler Power Flow mode of the uterine segments and US Doppler spectral mode of the left and right dorsal branches of the uterine artery. These exams were performed every day until the next ovulation to evaluate a complete estrous cycle. After the second ovulation, a fragment of endometrium was collected to perform an endometrial biopsy. Experiment 2 will be carried out to measure the technique, where mares without prior knowledge of their reproductive history will be evaluated, informing a diagnosis suggestive or not of endometritis. Based on the preliminary results, we observed that the groups that present the largest number of mares with endometritis are the groups aged ≤8 years and ≥14 years and that the majority of these mares belong to the reproductive category of the recipients. The proportionality between the variables pulsatility index (PI) and resistivity index (RI) can be confirmed, however, when they are analyzed together, PI supplies the RI synergism, which becomes non-significant. And another fact observed was the proportionality between PI and RI and the increase in the number of mares in the endometritis group, which goes against the biological effect of vascular perfusion. Therefore, for now we can conclude that assessments based on Doppler US could not be used as a parameter for the additional diagnosis of endometritis.

COMMITTEE MEMBERS:
Presidente - 2202309 - JULIO CESAR FERRAZ JACOB
Interno - 387015 - FERNANDO QUEIROZ DE ALMEIDA
Interno - 1548043 - MARCO ROBERTO BOURG DE MELLO
Externo ao Programa - 2142739 - RODRIGO VASCONCELOS DE OLIVEIRA - UFRRJExterno à Instituição - LUCIANO ANDRADE SILVA - USP
Externo à Instituição - JOSE ANTONIO SILVA RIBAS
Externo à Instituição - JAIR CAMERGO FERREIRA - UNESP
Externo à Instituição - GUSTAVO FERRER CARNEIRO - UFRPE
Externo à Instituição - ANDRE LUIS RIOS RODRIGUES - UNESP