Assessment of umbilical artery flow and fetal heart rate to predict delivery time in bitches
| Autor: | Elaine Mayumi Ueno Gil, Amália Turner Giannico, Daniela Aparecida Ayres Garcia, Marlos Gonçalves Sousa, Tilde Rodrigues Froes |
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| Rok vydání: | 2015 |
| Předmět: |
040301 veterinary sciences
Fetal ultrasonography Umbilical Arteries 0403 veterinary science Dogs Fetus Food Animals Pregnancy medicine.artery Heart rate medicine Animals Statistical analysis Small Animals Equine Normal delivery business.industry 0402 animal and dairy science Parturition Umbilical artery 04 agricultural and veterinary sciences Heart Rate Fetal 040201 dairy & animal science Resistive index Fetal heart rate Anesthesia Animal Science and Zoology Female business Blood Flow Velocity |
| Zdroj: | Theriogenology. 86(7) |
| ISSN: | 1879-3231 |
| Popis: | The aim of this study was to quantitatively investigate the oscillation of the fetal heart rate (HR) in advance of normal delivery and whether this index could be used to indicate impending delivery. In addition, fetal HR oscillation and umbilical artery resistive index (RI) were correlated to determine if the combination of these parameters provided a more accurate prediction of the time of delivery. Sonographic evaluation was performed in 11 pregnant bitches to evaluate the fetal HR and umbilical artery RI at the following antepartum times: 120 to 96 hours, 72 to 48 hours, 24 to 12 hours, and 12 to 1 hours. Statistical analysis indicated a correlation between the oscillation of fetal HR and the umbilical artery RI. As delivery approached a considerable reduction in the umbilical artery RI was documented and greater oscillations between maximum and minimum HRs occurred. We conclude that the quantitative analysis of fetal HR oscillations may be used to predict the time of delivery in bitches. The combination of fetal HR and umbilical artery RI together may provide more accurate predictions of time of delivery. |
| Databáze: | OpenAIRE |
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