Estimated fetal weight at mid‐gestation in prediction of pre‐eclampsia in singleton pregnancies

2021 ◽  
Author(s):  
L. Frei ◽  
A. Wright ◽  
A. Syngelaki ◽  
R. Akolekar ◽  
K. H. Nicolaides
Keyword(s):  
Fetal Weight ◽  
Estimated Fetal Weight ◽  
Singleton Pregnancies

scholarly journals Sonographic Estimated Fetal Weight among Diabetics at ≥ 34 Weeks and Composite Neonatal Morbidity

2018 ◽  
Vol 08 (02) ◽  
pp. e121-e127
Author(s):  
Leen Al-Hafez ◽  
Michael Pirics ◽  
Suneet Chauhan
Keyword(s):  
Retrospective Study ◽  
Confidence Intervals ◽  
Gestational Age ◽  
Neonatal Morbidity ◽  
Fetal Weight ◽  
Inclusion Criteria ◽  
Increased Risk ◽  
Estimated Fetal Weight ◽  
Singleton Pregnancies

Objectives The objective was to assess the composite neonatal morbidity (CNM) among diabetic women with sonographic estimated fetal weight (SEFW) at 10 to 90th versus >90th percentile for gestational age (GA). Study Design The inclusion criteria for this retrospective study were singleton pregnancies at 34 to 41 weeks, complicated by diabetes, and that had SEFW within 4 weeks of delivery. Odds ratios (ORs) with 95% confidence intervals (CI) were calculated. Results Among the 140 cohorts that met the inclusion criteria, 72% had SEFW at 10th to 90th percentile for GA, and 28% at >90th percentile. Compared with women with diabetes with last SEFW at 10th to 90th percentile, those with estimate > 90th percentile for GA had a significantly higher rate of CNM (13 vs. 28%; OR, 2.65; 95% CI, 1.07–6.59). Among 109 diabetic women who labored, the rate of shoulder dystocia was significantly higher with SEFW at >90th percentile for GA than those at 10th to 90th percentile (25 vs. 2%; p = 0.002); the corresponding rate of CNM was 29 versus 10% (p = 0.02). Conclusion Among diabetic women with SEFW > 90th percentile for GA, CNM was significantly higher than in women with estimate at 10 to 90th percentile. Despite the increased risk of CNM, these newborns did not have long-term morbid sequela.

STUDY THE CORRELATION BETWEEN PLACENTAL THICKNESS AND ESTIMATED FETAL WEIGHT BY 2D ULTRASONOGRAPHY ON NORMAL FOETUS MORE THAN 16 WEEKS OF AGES

2011 ◽  
pp. 58-66
Author(s):  
Thanh Nam Nguyen ◽  
Minh Loi Hoang ◽  
Vu Quoc Huy Nguyen
Keyword(s):  
Fetal Weight ◽  
The Third ◽  
Normal Foetus ◽  
Placental Thickness ◽  
Estimated Fetal Weight ◽  
Singleton Pregnancies

Objectives: To evaluate the development of foetus (BPD, AC, AAD, FL) and placenta (placental thickness - PT) and the correlation between placental thickness and fetal estimated weight. Materials and Method: Ultrasonographic study 1224 singleton pregnancies with normal developing foetus by cross-sessional describtive method from 01/05/2009 to 20/08/2010. Results: The first pregnancies consist of 59.07%, the second – 29.66 %, the third -11.28%. The fetal and placental ultrasonographic parameters continuously increase from 16 weeks to 38 weeks of age and get satistic meaning with p<0.01. There is closed agreeable correlation between BPD, AAD, AC, FL, PT and fetal ages (w) with r = 0.9829, 0.9895, 0.9882, 0.9827, 0.9689 p<0.0001 correlatively. Conclusion: Ultrasonographic fetal parameters strongly correlate with fetal ages. Placental thickness agreable correlation with fetal ages and FEW.

scholarly journals Local References for Ultrasound-Estimated Fetal Weight Based on 2,211 Singleton Pregnancies in the City of Curitiba, South of Brazil

2020 ◽  
Vol 42 (04) ◽  
pp. 174-180
Author(s):  
Daniel Massamatsu Pianovski Kato ◽  
Liziane Lorusso ◽  
Natália Roberta Andrade Dalla Costa ◽  
Camila Rotter Queiroz Ulyssea ◽  
Gabrielle Navarro Lizana ◽  
...  
Keyword(s):  
Local Population ◽  
Fetal Weight ◽  
Coefficient Of Determination ◽  
Growth Disorders ◽  
Reference Curve ◽  
Proposed Model ◽  
Reference Curves ◽  
South Of Brazil ◽  
Estimated Fetal Weight ◽  
Singleton Pregnancies

Abstract Objective To develop reference curves of estimated fetal weight for a local population in Curitiba, South of Brazil, and compare them with the curves established for other populations. Methods An observational, cross-sectional, retrospective study was conducted. A reference model for estimated fetal weight was developed using a local sample of 2,211 singleton pregnancies with low risk of growth disorders and well-defined gestational age. This model was compared graphically with the Hadlock and Intergrowth 21st curves. Results Reference curves for estimated fetal weight were developed for a local population. The coefficient of determination was R2 = 99.11%, indicating that 99.11% of the fetal weight variations were explained by the model. Compared with Hadlock curves, the 50th, 90th, and 97th percentiles in this model were lower, whereas the 10th percentile nearly overlapped, and the 3rd percentile was slightly higher in the proposed model. The percentiles were higher in the proposed model compared with the Intergrowth 21st curves, particularly for the 3rd, 10th, and 50th percentiles. Conclusion We provide a local reference curve for estimated fetal weight. The proposed model was different from other models, and these differences might be due to the use of different populations for model construction.

Estimated Fetal Weight in Twin Pregnancy: How Good Are We?

1990 ◽  
Vol 39 (3) ◽  
pp. 395-399 ◽  
Author(s):  
D.M. Campbell ◽  
A.P. Smith ◽  
A.W. Wilson
Keyword(s):  
Multiple Pregnancy ◽  
Fetal Weight ◽  
Singleton Pregnancy ◽  
Femur Length ◽  
Biparietal Diameter ◽  
Multiple Measurements ◽  
Ultrasonic Assessment ◽  
Twin Pregnancies ◽  
Estimated Fetal Weight ◽  
Singleton Pregnancies

AbstractUltrasonic assessment of fetal weight derived from multiple measurements of the fetus has become accepted in clinical practice as being useful in singleton pregnancies. Several different formulae for estimating fetal weight have been derived from differing measurements of the fetus, such as biparietal diameter, trunk circumference, and femur length. To date, there has been no attempt to evaluate such a technique in multiple pregnancy. This study aims to see whether the formulae derived for singleton pregnancy are applicable to twin pregnancies. Estimated fetal weight will be derived by mathematical modelling from ultrasonic measurements made within a week of delivery and the results compared with the actual birthweight to give an indication of how good such estimated fetal weights are. Factors to be considered in the analysis include whether there are differences between Twin I and Twin II, differences of presentation with twins and differences by gestation at delivery.

Deviation of Sonographic Estimated Fetal Weight from Actual Birth Weight in Two Consecutive Pregnancies of the Same Parturients

2014 ◽  
Vol 37 (1) ◽  
pp. 37-43
Author(s):  
Amir Aviram ◽  
Rami Aviram ◽  
Kinneret Tenenbaum-Gavish ◽  
Liran Hiersch ◽  
Eran Ashwal ◽  
...  
Keyword(s):  
Birth Weight ◽  
Systematic Error ◽  
Fetal Weight ◽  
Weak Correlation ◽  
Significant Difference ◽  
A Minor ◽  
Biometric Features ◽  
Estimated Fetal Weight ◽  
Singleton Pregnancies

Objective: To determine whether maternal features affect the accuracy of sonographic estimated fetal weight (SEFW) by evaluating the consistency of the systematic error of SEFW with regards to the birth weight (BW) in two consecutive pregnancies of the same gravida. Methods: The cohort included women with SEFW within 1 week of delivery (32-42 weeks' gestation) in two consecutive singleton pregnancies from 2007 to 2012. The systematic error was calculated as (SEFW - BW)/BW × 100 and expressed as a percentage of the BW. Results: A total of 636 pregnancies (318 gravidas) were eligible for analysis. The BW and SEFW were correlated in both first examined (r = 0.873, p < 0.001) and consecutive (r = 0.843, p < 0.001) pregnancies. There was a significant difference in mean systematic error between first examined and consecutive pregnancies (3.13 ± 8.95 vs. 0.34 ± 8.75%, p < 0.001), with a very weak correlation between the two (r = 0.135, p = 0.16). Nulliparity or multiparity at the first examined pregnancy was not found to be a significant factor, and in both groups the error was higher in the first examined pregnancy. There were no significant differences between parturients with a minor (10% and below) or major (>10%) difference in the systematic error between the two pregnancies. Conclusion: The systematic error between the SEFW and BW in two consecutive pregnancies is inconsistent, suggesting that it is unaffected by maternal biometric features.

Discrepancy Analysis between Clinical Versus Ultrasound Estimated Fetal Weight and Actual Birth Weight at 3rd Trimester

2019 ◽  
Vol 11 (1) ◽  
pp. 32-38
Author(s):  
Naznin Rashid Shewly ◽  
Menoka Ferdous ◽  
Hasina Begum ◽  
Shahadat Hossain Khan ◽  
Sheema Rani Debee ◽  
...  
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Fetal Weight ◽  
P Value ◽  
Weight Estimation ◽  
Third Trimester ◽  
Mortality And Morbidity ◽  
Fetal Weight Estimation ◽  
Obstetric Management ◽  
Estimated Fetal Weight

Background: In obstetric management fetal weight estimation is an important consideration when planning the mode of delivery in our day to day practice. In Bangladesh low birth weight is a major public health problem & incidence is 38% - 58%. Neonatal mortality and morbidity also yet high. So accurate antenatal estimation of fetal weight is a good way to detect macrosomia or small for date baby. Thus to improve the pregnancy outcome and neonatal outcome decreasing various chance of neonatal mortality and morbidity antenatal fetal weight prediction is an invaluable parameter in some situation where to identify the at risk pregnancy for low birth weight become necessary. Reliable method for prenatal estimation of fetal weight two modalities have got popularity - Clinical estimation and another one is ultrasonic estimation. This study was designed to determine the accuracy of clinical versus ultrasound estimated fetal weight detecting the discrepancy with actual birth weight at third trimester. So that we can verify more reliable and accurate method. Objectives: To find out more accurate and reliable modality of fetal weight estimation in antenatal period during obstetric management planning. To compare clinical versus ultrasound estimated fetal weight & to determine discrepancy of both variable with actual birth weight. Method: This prospective, cross sectional analytical study was carried out in Dhaka Medical College Hospital from January 2006 to December 2006. By purposive sampling 100 pregnant women fulfilling inclusion criteria were included in my study in third trimester (29wks-40wks). In clinical weight estimation procedure SFH (Symphysio Fundal Height) was measured in centimeter. On pervaginal finding whether vertex below or above the ischial spine was determined. By Johnson’s formula fetal weight in grams was estimated. Then by ultrasound scan different biometric measurements were taken and finally by Hadlock’s formula fetal weight was estimated. Eventually actual birth weight was taken after birth by Globe Brand weighing machine. Accuracy of both modalities were compared and which one was more reliable predictor was determined by statistical analysis. Results: After data collection were analyzed by computer based software (SPSS). There was gradual and positive relationship between symphysiofundal height and estimated birth weight. Discrepancy between clinical and actual birth weight at third trimester was statistically significant – Paired Student’s ‘t’ test was done where p value was <0.001. Whereas discrepancy between sonographically estimated fetal weight with actual birth weight was not statistically significant (by paired ‘t’ test where p value was >0.05). That implies discrepancy between ultrasound estimated fetal weight and actual birth weight was significantly less than that of clinically estimated fetal weight. 14% clinically and 46% sonographically estimated fetal weight were observed within £ 5% of actual birth weight. 31% clinical and 42% sonographically estimates observed within 6% to 10% of actual birth weight and 55% clinical and 12% sonographically estimate were >10% of actual birth weight. That is about 88% sonographical versus 45% clinical estimates were within 10% of actual birth weight. Conclusion: There is no doubt about importance of fetal weight in many obstetric situations. Clinical decisions at times depends on fetal weight. Whether to use oxytocin, to use forceps or vacuum for delivery or extend of trial or ended by Caesarian section immediately or no scope of trial to be largely depend on fetal size and weight. So more accurate modality for antenatal fetal weight estimation has paramount importance. In my study sonographically estimated weight have more accuracy than that of clinical estimate in predicting actual birth weight. Sonographically estimated fetal weight is more reliable, accurate and reproducible rather than other modality. J Shaheed Suhrawardy Med Coll, June 2019, Vol.11(1); 32-38

scholarly journals Swedish intrauterine growth reference ranges for estimated fetal weight

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Linda Lindström ◽  
Mårten Ageheim ◽  
Ove Axelsson ◽  
Laith Hussain-Alkhateeb ◽  
Alkistis Skalkidou ◽  
...  
Keyword(s):  
Fetal Growth ◽  
Postnatal Growth ◽  
Fetal Weight ◽  
Hierarchical Regression ◽  
Reference Ranges ◽  
Hierarchical Regression Model ◽  
Gestational Week ◽  
Prospective Longitudinal ◽  
Estimate Fetal Weight ◽  
Estimated Fetal Weight

AbstractFetal growth restriction is a strong risk factor for perinatal morbidity and mortality. Reliable standards are indispensable, both to assess fetal growth and to evaluate birthweight and early postnatal growth in infants born preterm. The aim of this study was to create updated Swedish reference ranges for estimated fetal weight (EFW) from gestational week 12–42. This prospective longitudinal multicentre study included 583 women without known conditions causing aberrant fetal growth. Each woman was assigned a randomly selected protocol of five ultrasound scans from gestational week 12 + 3 to 41 + 6. Hadlock’s 3rd formula was used to estimate fetal weight. A two-level hierarchical regression model was employed to calculate the expected median and variance, expressed in standard deviations and percentiles, for EFW. EFW was higher for males than females. The reference ranges were compared with the presently used Swedish, and international reference ranges. Our reference ranges had higher EFW than the presently used Swedish reference ranges from gestational week 33, and higher median, 2.5th and 97.5th percentiles from gestational week 24 compared with INTERGROWTH-21st. The new reference ranges can be used both for assessment of intrauterine fetal weight and growth, and early postnatal growth in children born preterm.

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