Atypical ductus venosus blood flow pattern during a prolonged fetal heart rate deceleration in labor
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چکیده
منابع مشابه
Preferential streaming of ductus venosus blood to the brain and heart in fetal lambs.
In 16 chronically prepared fetal lambs we compared the systemic distribution of ductus venosus blood flow with that of abdominal inferior vena caval blood by simultaneously injecting microspheres labeled with different radionuclides into an umbilical vein and into the abdominal inferior vena cava. A significantly greater proportion of ductus venosus blood flow than of abdominal inferior vena ca...
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Electronic fetal heart rate monitoring is commonly used to assess fetal well-being during labor. Although detection of fetal compromise is one benefit of fetal monitoring, there are also risks, including false-positive tests that may result in unnecessary surgical intervention. Since variable and inconsistent interpretation of fetal heart rate tracings may affect management, a systematic approa...
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Uterine contractions of more than 2 minutes' duration occurred spontaneously in 1.4% of 6,399 antenatal fetal heart rate (FHR) recordings. All recordings were made in the Department of Obstetrics and Gynaecology at Tygerberg Hospital. The patients with spontaneous prolonged contractions (SPC) were compared with a randomly selected control group. Patients who had an SPC during antenatal FHR reco...
متن کاملThe intrapartum deceleration in center stage: a physiologic approach to the interpretation of fetal heart rate changes in labor.
One of the most distinctive features of fetal heart rate recordings in labor is the deceleration. In clinical practice, there has been much confusion about the types of decelerations and their significance. In the present review, we examined uteroplacental perfusion in labor, describe the pathophysiologic condition of decelerations, and explain some of the reasons behind the confusion about the...
متن کاملFetal Circulatory Variation in an Acute Incident Causing Bradycardia
Umbilical artery\vein, middle cerebral artery, and ductus venosus Doppler velocimetry were performed at 33 weeks of gestation in the settings of an intrauterine growth restricted fetus during a heart rate deceleration. Interestingly, we recorded a sudden onset redistribution of fetal blood flow with fetal bradycardia. Spontaneous normalization of waveforms was observed once fetal heart rate ret...
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ژورنال
عنوان ژورنال: Ultrasound in Obstetrics and Gynecology
سال: 2006
ISSN: 0960-7692,1469-0705
DOI: 10.1002/uog.2771