VETINDEX

Periódicos Brasileiros em Medicina Veterinária e Zootecnia

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Triplex doppler ultrassonography in prenatal of pregnant bitches

Antonio Rossi Feliciano, MarcusCarvalho Nepomuceno, AneliseJosé Cardilli, DiogoNassar Coutinho, LeandroEmília Franco de Oliveira, MariaDarapé Kirnew, MurilloTavares de Almeida, VívianRicardo Russiano Vicente, Wilter

Background: The Dopplerfl uxometry is a diagnostic technique that provides anatomical information and real-time dynamic tissue evaluation by determining the presence and direction of blood fl ow in a vessel and their hemodynamic features. Considering the importance of Doppler to pregnant women and the recent studies of vascular indices in pregnant animals and the application of news technologies for Doppler ultrasonography as spectral and power techonology, the objective of this study was to determine the absolute values of the vascular indices from the uterine, umbilical and fetal aorta arteries in pregnant bitches, using new techniques of doppler ultrassonography.Materials, Methods & Results: Twenty six multiparous bitches from the same kennel, weighting 5 - 25 kg, aged 4 - 6 years old, were selected to the current study. Doppler ultrasonography was performed to assess the maximum and minimum velocity, resistance and pulsatility indices of the uteroplacental, umbilical and fetal abdominal aorta arteries (5th, 6th, 7th and 8th gestational week). The mean pregnancy period in twenty six bitches was 60 days and the mean number of puppies per pregnancy was four. Twenty fi ve animals presented healthy pregnancies and one presented hydrallantois at the 7th and 8th gestational week. During Doppler exams in healthy pregnant bitches, there were progressive increase in PSV (P 5

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