Relation of rate of urine production to oxygen tension in small-for-gestational-age fetuses
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Cited by (83)
Fetal renal blood flow velocimetry and cerebro-placental ratio in patients with isolated oligohydramnios
2019, Journal of Gynecology Obstetrics and Human ReproductionCitation Excerpt :Vascular resistance in renal arteries increases and renal blood flow decrease, while the resistance falls in cerebral circulation and flow to brain increases [4–6]. It is suggested that oligohydramnios in fetal growth restriction is caused by decreased urine output due to reduced renal perfusion [3,7–9]. Umbilical artery Doppler indices increase in correlation with degree of injury and hypoxia of placenta [10].
Planning management and delivery of the growth-restricted fetus
2018, Best Practice and Research: Clinical Obstetrics and GynaecologyCitation Excerpt :Acidemia and in particular a cord artery pH < 7.20 at birth is most accurately predicted by a short-term variation below 3.5 ms in the computerized CTG (cCTG) [62–65]. The relationship between biophysical variables and fetal pH resembles the observations made for Doppler, as each individual component (tone, gross body movement, breathing movement, amniotic fluid volume, and heart rate reactivity) is independently altered by hypoxemia [15,61,66] but their combined consideration in a composite score best predicts pH and outcome [16,67,68]. An abnormal BPS of 4 or less is associated with a mean pH of less than 7.20 and a score of less than 2 has a 100% sensitivity for acidemia [70–72].
Prolonged and Postterm Pregnancy
2016, Obstetrics: Normal and Problem PregnanciesSonography-based Automated Volume Count to estimate fetal urine production in twin-to-twin transfusion syndrome: Comparison with Virtual Organ Computer-aided AnaLysis
2011, American Journal of Obstetrics and GynecologyCitation Excerpt :As a tool to quantify FUP, SonoAVC could play a role in determining the risk of progression in monochorionic twins with mild amniotic fluid discrepancies not fulfilling the TTTS criteria or as an added diagnostic tool in cases of oligohydramnios or polyhydramnios in singletons. Normal FUP rates, measured with 2D ultrasound, reported in the literature show a wide range of normal values ranging from 28–54 mL/h at 40 weeks' gestation.1,2,18,19 Fägerquist et al4 described several confounding factors when bladder volumes are measured with 2D ultrasound.
Perinatal complications of post-term pregnancy
2011, Progresos de Obstetricia y Ginecologia