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.

scholarly journals The Accuracy of the Weight of the Fetal Agency Using Ultrasound Based on the Formula Hadlock Compared to the Birth of New Body Weight

2019 ◽  
Author(s):  
Nurbaiti . ◽  
Sri Haryati Gofar ◽  
Samsun . ◽  
Guntur Winarno ◽  
Akhmadi .
Keyword(s):  
Body Weight ◽  
Birth Weight ◽  
T Test ◽  
Fetal Weight ◽  
Weight Estimation ◽  
Fetal Weight Estimation ◽  
Significant Difference ◽  
Fetal Birth Weight ◽  
Estimated Fetal Weight

The purpose of this study is to analyze the result of the calculation of fetal weight estimation based on Hadlock’s formula with baby birth weight. The design of this research is quantitative analytic. The data is analyzed by the t-test. The results of this study showed that the analysis of the average comparison between TBJ (Fetal Weight Estimation) and BBL (Fetal Birth Weight) is 2623,60 with 2946,67. There is a significant difference with the value of sig.(2-tailed) 0,000 <0,05, which means there is a significant difference between the estimated fetal weight based on Hadlock’s formula with baby birth weight. Based on the result of the study of fetal weight interpretation using Hadlock’s formula, an accuracy of 89,34% was seen.

scholarly journals Dare's Formula Specifications in Assessing Fetal Weight

2021 ◽  
Vol 15 (1) ◽  
pp. 68
Author(s):  
Lusiana Lusia Sirait ◽  
Riwalsen Purba
Keyword(s):  
Body Weight ◽  
Birth Weight ◽  
Well Being ◽  
Fetal Weight ◽  
Accurate Estimation ◽  
Important Indicator ◽  
Significant Difference ◽  
The Difference ◽  
Estimated Fetal Weight ◽  
In Pregnancy

One of the causes of complicating labor is the fetal factor, namely the fetus's size. If it is not treated immediately, it will increase maternal and neonatal mortality rates. Accurate estimation of fetal birth weight in pregnancy and delivery is an important indicator in determining fetal well-being. Birth weight is important to measure before labor starts, which helps anticipate possible complications in pregnancy, childbirth, and the puerperium. The accuracy of estimation of fetal body weight either by measuring the fundal height or other means will affect labor management. One way to predict the estimated fetal weight, including the Dare's Formula method, is to measure the circumference of the mother's abdomen (abdominal girth) in centimeters, the measurement results times the Fundus Uterine Height (TFU) in centimeters, and the modified Niswander formula (1.12 TFU). - 7,7) 100 (gr). The design used in this study is a Quasi Experiment. Assessment The estimated fetal weight obtained from the measurement is then compared with the newborn's body weight (actual body weight). The population in this study were all pregnant women, both primiparous and multiparous. While the sample to be taken must meet the inclusion criteria that have been set. The results of the study were based on statistical tests using independent t-test, it was found that the p value (0.000) <α (0.05) means that there is a significant difference between the difference in body weight of babies born with Dare's formula and the difference in body weight of babies born with Niswander's modification, the estimated fetal weight is more. Effective using Dare's formula rather than Niswander modification.

scholarly journals Comparison of ultrasonographic estimated fetal weight and actual birth weight.

2021 ◽  
Vol 28 (10) ◽  
pp. 1428-1432
Author(s):  
Summan Hameed ◽  
Zobia Saleem ◽  
Mehwish Rauf ◽  
Tayyaba Aslam ◽  
Aqsa Hafeez ◽  
...  
Keyword(s):  
Birth Weight ◽  
Pregnant Women ◽  
Cross Sectional Study ◽  
Fetal Weight ◽  
P Value ◽  
Cross Sectional ◽  
Actual Weight ◽  
Significant Difference ◽  
Minimum Age ◽  
Estimated Fetal Weight

Objective: To determine the accuracy of estimated fetal weight by ultrasound compared with actual birth weight. Study Design: Cross Sectional study. Setting: Department of Radiology, Fatima Memorial Hospital, Lahore. Period: September 2017 to January 2018. Material & Methods: A sample of 139 pregnant women who fulfilled the inclusion and exclusion criteria were included in this study Ultrasonography of full term pregnant women was performed to determine the comparison and accuracy with the actual weight of baby at birth. Results: In a sample of 139 pregnant women, the mean age was 27.8±4.2 years (with minimum age of 20 years and maximum age of 40 years). Ultrasonographic estimated fetal weight and actual birth weight was compared by using paired t-test. No significant difference was found between estimated fetal weight and actual birth weight with P-value 0.237. Conclusion: Ultrasound is highly sensitive, good, reliable, safe and accurate modality for estimation of fetal weight. There is no significant difference between fetal weight and actual birth weight.

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 Correlation of serum adiponectin and leptin concentrations with anthropometric parameters in newborns

2012 ◽  
Vol 140 (9-10) ◽  
pp. 595-599 ◽  
Author(s):  
Snezana Palcevska-Kocevska ◽  
Natasa Aluloska ◽  
Marija Krstevska ◽  
Elena Shukarova-Angelovska ◽  
Ljiljana Kojik ◽  
...  
Keyword(s):  
Birth Weight ◽  
Growth Regulation ◽  
Physiological Role ◽  
Mutual Relationship ◽  
Anthropometric Parameters ◽  
Serum Leptin ◽  
Significant Difference ◽  
Neonatal Growth ◽  
Singleton Pregnancies

Introduction. It has been shown that some adipocytokines and their mutual relationship can be indicators of fetal and neonatal growth. Physiological role of leptin and adiponectin in fetal and neonatal growth is not well established. Objectives. The aim of this study was to assess the correlation of the anthropometrics parameters and serum concentration of leptin and adiponectin levels in healthy newborns. Methods. A cohort of 110 neonates, born after uncomplicated singleton pregnancies at term, were classified as AGA (n=60), SGA (n=30) and LGA (n=20) according to the Lubchenco curves. Anthropometric parameters of the neonates: birth weight (BW), birth length (BL), body weight/body length ratio (BW/ BL), Body Mass Index (BMI) and Ponderal Index (PI) were recorded after birth. Results. Mean serum leptin and adiponectin levels in both sexes were not significantly different (male: 1.85?0.75; 29.51?22.89 and female: 2.06?0.99; 31.60?23.51 ng/mL). There was a significant difference between leptin levels in AGA and LGA newborns (1.93?0.84 vs. 3.12?1.50 ng/mL) (p<0.05), and in adiponectin levels between AGA and LGA compared to SGA newborns (32.8?23.29 and 43.40?31.24 vs. 12.67?2.43 ng/mL, respectivel; p<0.05; p<0.05). Leptin and adiponectin levels were positively correlated with BW (r=0.63 and r=0.41), BL (r=0.63, r=0.42), BW/BL (r=0.61, r=0.41), BMI (r=0.54, r=0.35), and PI (r=0.47, r=0.29, (p<0.01). Conclusion. Significantly higher adiponectin levels were found in AGA neonates compared to SGA neonates. Leptin and adiponectine levels were positively correlated with birth weight. These findings suggest that these adipocytokines may be involved in fetal growth regulation.

scholarly journals The effects of body mass index, smoking and anemia on fetal birth weight

2021 ◽  
Vol 29 ◽  
Author(s):  
Ersin Çintesun ◽  
Feyza Nur İncesu Çintesun ◽  
Meltem Aydoğdu ◽  
Emine Taşkın ◽  
Mete Can Ateş ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Birth Weight ◽  
Pregnant Women ◽  
Vaginal Delivery ◽  
Body Mass ◽  
Fetal Weight ◽  
Important Indicator ◽  
Significant Difference ◽  
Fetal Birth Weight ◽  
Smoking Group

Objective: Fetal growth is an important indicator of fetal health. Low birth weight (LBW) is also associated with increased perinatal morbidity and mortality. Numerous factors that affect fetal weight have been identified. In this study, we aimed to investigate the effect of body mass index, smoking, and anemia on fetal birth weight on term pregnant women who had vaginal delivery in our clinic. Methods: This study is a retrospective cross-sectional study. This study included patients who had a spontaneous vaginal delivery at our hospital between January 1st, 2018, and June 15th, 2020. Measurements of hemoglobin (Hb) and hematocrit (Hct) levels during birth supported the diagnosis of anemia. Hb levels were compared in three categories in this study: (1) Hb<10 g/dL; (2) ≥10<11 g/dL; and (3) Hb ≥11 g/dL. Anemia was defined as having a Hb level <11 mg/dL. Birth weight was categorized as LBW <2500 g; normal birth weight (NBW) as ≥2500–3999 g, and macrosomia as ≥4000 g. Results: Analysis was performed on 1428 pregnant women. There was a statistically significant difference for the Hct and Hb subgroups between the groups (p<0.05). Fetal birth weight was found higher in the non-smoking group than in the smoking group (3302.1± 381.5 g vs. 2839.7±491.5 g; p<0.001). Body mass index (BMI) and Hb levels positively predicted fetal birth weight (β=0.134; p<0.001 and β=0.051; p=0.046), smoking was negatively predicted fetal birth weight (β=-0.245; p<0.001). Conclusion: BMI, Hb levels, and smoking status during mothers’ delivery are effective on fetal weight. Smoking was the strongest predictor of fetal birth weight compared with the other variables.

scholarly journals Intrapartum Ultrasonography for Detecting Fetal Macrosomia

2019 ◽  
pp. 193-202
Author(s):  
Croce P ◽  
Croce G ◽  
Panzeri L ◽  
Zanchi SM ◽  
Perotti D ◽  
...  
Keyword(s):  
Birth Weight ◽  
Predictive Value ◽  
Absolute Error ◽  
Fetal Weight ◽  
Abdominal Circumference ◽  
Fetal Macrosomia ◽  
Average Body Mass ◽  
Average Body ◽  
First Stage Of Labor ◽  
Singleton Pregnancies

Objective: To compare the accuracy of three ultrasound methods to estimate fetal weight within 48 hours before delivery, in order to recognize macrosomia, defined as birth weight greater than 4000 g.Methods: A prospective and ultrasonic study was performed on a sample of singleton pregnancies between 37 weeks and 41 weeks plus 6 days of gestation. Fetal weight was evaluated with Estimated Fetal Weight (EFW) formula, with the measurement of the Abdominal Circumference (AC) and with the assessment of the Abdominal Circumference corrected with the constant “c” (ACc).Results: 1030 patients with single pregnancy were included, 67.28% of them were primiparous, average Body Mass Index (BMI) at birth was 27.37 and macrosomia was found in 77 (8,08%) fetuses. EFW showed a sensitivity of 61.53%, a specificity of 90.72%, a positive predictive value (PPV) of 27.58% and negative predictive value (NPV) of 97.46%, to recognize birth weight of more than 4000 g. AC greater than 375 mm presented a sensitivity of 53.24%, a specificity of 93.21%, a PPV of 41.41% and a NPV of 95.67%, to detect macrosomic fetuses. ACc greater than 375 mm showed a sensitivity of 66.23%, a specificity of 88.65%, a PPV of 34.35% and a NPV of 96.68%, to predict macrosomia. The mean absolute error when the neonatal weight was greater than 4000 g, with EFW was 9,23%, with AC were 11,02% and with ACc was 9,32%.Conclusions: In this study was shown that either EFW, or AC-only, or ACc are useful tools to detect fetal macrosomia. The measurement of AC and Acc seem to be the easiest methods to learn and to be used every time. During the first stage of labor, ultrasound scan associated to clinic evaluation, provides further elements to physician, to allow a better management of delivery. The finding of a NPV greater than 95% with the three methods, leads to exclude macrosomia with a good approximation, even in case of clinic hypothesis.

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