scholarly journals Fetal Urine Production in Late Pregnancy

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Robert H. Stigter ◽  
Eduard J. H. Mulder ◽  
Hein W. Bruinse ◽  
Gerard H. A. Visser
Keyword(s):  
Amniotic Fluid ◽  
Production Rate ◽  
Gestational Age ◽  
Late Pregnancy ◽  
Ultrasound Images ◽  
Amniotic Fluid Index ◽  
Normal Term ◽  
Urine Production ◽  
Fetal Urine ◽  
Volume Measurements

Objective. Hourly fetal urine production rate (HFUPR) was studied in relation to both gestational age and the onset of spontaneous labor in normal term human pregnancies. Methods. Serial volume measurements were obtained from longitudinal ultrasound images of the fetal bladder at 1–5-minute intervals, and HFUPR was subsequently calculated. A total of 178 adequate bladder-filling cycles were recorded in 112 women, and the amniotic fluid index (AFI) was assessed. Results. HFUPR did not change significantly between 37 and 42 weeks' gestation. However, HFUPR decreased during the last 14 days prior to the onset of spontaneous labor (). No significant correlation was found between HFUPR and AFI, neither when measured at the same time nor when HFUPR and AFI were measured at various intervals in time. Conclusion. HFUPR falls before and in relation to the time of onset of labor rather than in relation to gestational age.

scholarly journals Hourly fetal urine production rate in isolated oligohydramnios at term

PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0250659
Author(s):  
Hyun-Joo Seol ◽  
Ho Yeon Kim ◽  
Geum-Joon Cho ◽  
Min-Jeong Oh
Keyword(s):  
Amniotic Fluid ◽  
Production Rate ◽  
Gestational Age ◽  
Three Dimensional ◽  
Perinatal Outcomes ◽  
Normal Pregnancy ◽  
Significant Difference ◽  
Urine Production ◽  
Fetal Urine ◽  
Adverse Perinatal Outcomes

Objective The aim of this study was to evaluate the hourly fetal urine production rate (HFUPR) via three-dimensional ultrasonography in women with isolated oligohydramnios and compare with normal pregnant women at term. Materials and methods This was a prospective observational cohort study of 112 women from 34 to 40 6/7 weeks’ gestation. They were classified into three groups according to the amniotic fluid index (AFI) and ultrasonographic estimated fetal weight (EFW) as isolated oligohydramnios (defined as AFI below 5% and appropriate EFW corresponding to gestational age) (n = 34) and IUGR (defined as EFW below 5% corresponding to gestational age irrespective amniotic fluid) (n = 17), and normal pregnancy (n = 61). HFUPR was measured using three-dimensional virtual organ computer-aided analysis. Adverse perinatal outcomes in all participants were examined. Results There was no significant difference in HFUPR between patients with isolated oligohydramnios and women with normal pregnancies (median, 40.0 mL/h [interquartile range [IQR] 31.0–66.5] vs. 48.6 [31.5–81.2], p = 0.224). HFUPR was significantly decreased in the IUGR group (13.8 mL/h [IQR 10.1–24.8]), compared to the normal pregnancy group (p<0.001) and the isolated oligohydramnios group (p<0.001). HFUPR was significantly decreased in neonates with adverse perinatal outcomes compared to the control (24.7 mL/h [IQR 13.4–47.4] vs. 43.6 [29.8–79.0], p = 0.016). Conclusion HFUPR was not decreased in patients with isolated oligohydramnios but was decreased in patients with IUGR when compared to normal controls at term.

Crosa-Sectional Study Examining the Relationship Between Fetal Urine Production and the Amniotic Fluid Index at 38-43 Weeks of Gestation

1993 ◽  
Vol 2 (3) ◽  
pp. 117-120 ◽  
Author(s):  
Lynn J. Groome ◽  
Francisco L. Gaudier ◽  
John C. Hauth ◽  
John Owen ◽  
Cherry L. Neely ◽  
...  
Keyword(s):  
Amniotic Fluid ◽  
Sectional Study ◽  
Amniotic Fluid Index ◽  
Urine Production ◽  
Fetal Urine ◽  
The Relationship

AN ULTRASOUND SURVEY ON THE PLACENTA AND AMNIOTIC CHARACTERISTICS IN THE SINGLE POSTTERM PREGNANCY

2011 ◽  
pp. 20-24
Author(s):  
Thi My Dung Ha ◽  
Ngoc Thanh Cao ◽  
Thi Song Huong Tran
Keyword(s):  
Amniotic Fluid ◽  
Ultrasound Images ◽  
Ultrasound Scanning ◽  
Amniotic Fluid Index ◽  
Postterm Pregnancy ◽  
Fluid Properties ◽  
Labor Transfer ◽  
The Relationship ◽  
Obstetric Department ◽  
Singleton Pregnancies

Objective: To characterize ultrasound images of placenta and amniotic fluid in cases of singleton pregnancies beyond term predictions, and also explore the relationship between placenta, amniotic fluid and labor transfer status, postpartum child status. Image properties of prenatal placenta and amniotic fluid are immediately examined with ultrasound in 267 cases of postterm pregnancy beyond prediction at Obstetric Department, Hue Central Hospital. Results: In postterm pregnancy, placenta thickness decreases gradually according to gestational age. Oligohydramnios is 30.3%. There is a correlation between amniotic fluid index and birth method with r = 0.41. Sensitivity is 89.15%. Specificity is 48.55%. There is also a correlation between amniotic fluid echogenicity and method of birth: r = 0.478. Sensitivity is 97.67%. Specificity is 42.75%. Amniotic fluid index and baby Clifford's syndrome are also relevant, with r=0.466. Sensitivity is 83.78%. Specificity is 78.26%. Conclusions: Ultrasound scanning of amniotic fluid properties should be noted in the case of postterm pregnancy.

Determining the Uncertainty of Fetal Urine Production Rate Estimations

2021 ◽  
Author(s):  
Mats Fagerquist ◽  
Andreas Carlsson ◽  
Henrik Imberg ◽  
Hans Bokstrom
Keyword(s):  
Production Rate ◽  
Urine Production ◽  
Fetal Urine

Change in fetal urine production rate in growth-restricted fetuses after maternal meal ingestion

1996 ◽  
Vol 88 (5) ◽  
pp. 833-837 ◽  
Author(s):  
I YASUHI ◽  
M HIRAI ◽  
T ISHIMARU ◽  
T YAMABE
Keyword(s):  
Production Rate ◽  
Urine Production ◽  
Fetal Urine ◽  
Meal Ingestion

The amniotic fluid index in late pregnancy

2002 ◽  
Vol 12 (5) ◽  
pp. 291-297 ◽  
Author(s):  
R. H. Stigter ◽  
E. J. H. Mulder ◽  
H. W. Bruinse ◽  
G. H. A. Visser
Keyword(s):  
Amniotic Fluid ◽  
Late Pregnancy ◽  
Amniotic Fluid Index

scholarly journals Frequency of Caesarean Section in Pregnancies with Borderline Amniotic Fluid Index at Term

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
Natasha Bushra ◽  
Khaula Zeeshan ◽  
Sara Ejaz ◽  
Javeria Mushtaq ◽  
Khadija Waheed ◽  
...  
Keyword(s):  
Caesarean Section ◽  
Amniotic Fluid ◽  
Gestational Age ◽  
Cross Sectional Study ◽  
Induction Of Labour ◽  
Amniotic Fluid Index ◽  
Cross Sectional ◽  
Increased Risk ◽  
Failed Induction ◽  
One Year

AbstractThe increased risk of caesarean section after induced labour is well documented. Rate of induction of labour has doubled in the past decade from 10 to 20%. Low Amniotic Fluid Index (AFI) as an isolated finding leads to increased obstetrical interventions but without any improvement in outcome.Objectives:  To determine the frequency of caesarean section due to failed induction in pregnancies at term with borderline AFI.Patients and Methods:  This cross-sectional study was conducted at Department of Obstetrics and Gynaecology, Unit-III, SIMS/Services Hospital, Lahore. The duration of study was one year from January, 2015 to December, 2015. A total of 150 patients were included in this study. AFI was measured by recent obstetric ultrasound. All patients with borderline AFI (5 – 8 cm) were included in the study. They were induced by glandin E2 gel. If induction of patients failed with two doses of glandin E2 gel, given vaginally 6 hours apart, patients were considered for cesarean section. The outcome measure was rate of caesarean section due to failed induction. All data were analyzed by SPSS version 20.Results:  Mean age of the patients was 30.34 ± 6.68 years. Mean gestational age was noted 38.34 ± 1.05 weeks. Out of 150 patients, 103 (68.7%) were para 1 – 3 and 47 patients (31.3%) were para 4 – 6. Caesarean section due to failed induction with borderline AFI was performed in 27 patients (18.0%). Stratification with regard to age, gestational age and parity was carried out and was found significant only for gestational age being > 39 weeks.Conclusion:  It is concluded that failed induction of labour at term in women with borderline AFI is not associated with increased risk of caesarean delivery.

Comparison of Amniotic Fluid Index at Different Gestational Age in Normal Pregnancy

2017 ◽  
Vol 06 (04) ◽  
Author(s):  
Francis Olayemi Adebayo ◽  
Olatunde Onafowokan ◽  
Akinola Babalola ◽  
Nathaniel Adewole ◽  
Benjamin Nggada
Keyword(s):  
Amniotic Fluid ◽  
Gestational Age ◽  
Normal Pregnancy ◽  
Amniotic Fluid Index
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