scholarly journals Correlation between Estimated Fetal Weight at Term by Ultrasonogram and Actual Birth Weight

2014 ◽  
Vol 32 (1) ◽  
pp. 21-25
Author(s):  
NR Shapla ◽  
MA Aleem ◽  
E Jesmin ◽  
H Ahmed ◽  
YS Lepe
Keyword(s):  
Birth Weight ◽  
High Risk ◽  
Gestational Age ◽  
Mode Of Delivery ◽  
Simple Random Sampling ◽  
Fetal Weight ◽  
Abdominal Circumference ◽  
Biometric Data ◽  
Age Range ◽  
Estimated Fetal Weight

The estimation of foetal birth weight is an important factor in the management of high risk pregnancies. Estimated foetal weight is calculated in the standard routine antepartum evaluation of high risk pregnancies and deliveries. This prospective observational study was done at the Department of Obstetrics and Gynecology in Border Guard Hospital, Peelkhana, Dhaka over a period of 6 months from January 2012 to June 2012. The present study was carried out to compare the accuracy of actual and ultrasonographic estimation of foetal weight at term. Hundred pregnant women at different gestational age from 37 weeks to 40 weeks were selected by simple random sampling. Ultrasonography was done for determination of estimated foetal weight (EFW) at term by using Hadlock method and birth weight was measured just after delivery. Data analysis was done by percentage and paired ‘t’ test. The age range of patients were 18-37 years with mean ±SD is 25.13±4.46. Among 100 study patients 33% were nuliparous and 67% were multiparous. The mean ±SD of gestational age and actual birth weight is 38.76±1.09 and 3.11±0.391 respectively. Ultrasound biometric data that includes mean ±SD biparietal diameter (BPD) in mm, abdominal circumference (AC) in mm and femur length (FL) in cm were 90.21±3.52, 327.67±20.75 and 7.45±1.43 respectively. Mean ±SD of estimated foetal weight (EFW) Kg was 2.97±0.53. Actual birth weight is correlated with the estimated foetal weight and the result was not statistically significant (P >.05). Calculation of estimated fetal weight by ultrasonography is recommended to make decision about mode of delivery, so that an obstetrician can plan early in high risk cases. DOI: http://dx.doi.org/10.3329/jbcps.v32i1.21032 J Bangladesh Coll Phys Surg 2014; 32: 21-25

scholarly journals Prenatal Prediction of Difficult Intubation in Periviable Neonates Using Standard Fetal Biometric Parameters

2018 ◽  
Vol 36 (06) ◽  
pp. 594-599 ◽  
Author(s):  
Tara Lynch ◽  
J. Glantz ◽  
Kathryn Drennan
Keyword(s):  
Birth Weight ◽  
Gestational Age ◽  
Fetal Weight ◽  
Abdominal Circumference ◽  
Intubation Difficulty ◽  
Biometric Parameters ◽  
Neonatal Birth Weight ◽  
Biparietal Diameter ◽  
The Mean ◽  
Estimated Fetal Weight

Objective To assess whether standard fetal biometric parameters can be used to predict difficult intubations in periviable neonates undergoing resuscitation. Study Design This is a retrospective case–control study of periviable neonates delivered at 23 to 256/7 weeks at an academic hospital during a 5-year period in whom intubation was attempted. Standard fetal biometric measurements were included if they were taken within 7 days of delivery. Primary outcome was intubation in one attempt and was compared with more than one attempt. Data were also collected for fetal gestational age at delivery, neonatal birth weight, estimated fetal weight, head circumference, biparietal diameter, and abdominal circumference. Parametric and nonparametric statistical tests used p < 0.05 as significant. Results In total, 93 neonates met the inclusion criteria. The mean estimated fetal weight was 675 g (standard deviation [SD] ± 140), and the mean neonatal birth weight was 706 g (SD ± 151). The median interval between fetal ultrasound and delivery was 3 days (range: 0–7 days). A total of 45 neonates (48.3%) required more than one intubation attempt. The median number of intubation attempts was 1 (range: 1–10). There was no association between intubation difficulty and fetal abdominal circumference, biparietal diameter, head circumference, gestational age, estimated fetal weight, and neonatal birth weight (all p > 0.05). Conclusion Standard biometry in periviable neonates does not predict intubation difficulty.

Abdominal Circumference Alone versus Estimated Fetal Weight after 24 Weeks to Predict Small or Large for Gestational Age at Birth: A Meta-Analysis

2017 ◽  
Vol 34 (11) ◽  
pp. 1115-1124 ◽  
Author(s):  
José Yordan ◽  
Bradley Holbrook ◽  
Pranita Nirgudkar ◽  
Ellen Mozurkewich ◽  
Nathan Blue
Keyword(s):  
Gestational Age ◽  
Meta Analysis ◽  
Screening Method ◽  
Case Series ◽  
Fetal Weight ◽  
Abdominal Circumference ◽  
Large For Gestational Age ◽  
Predictive Values ◽  
Sensitivity Specificity ◽  
Estimated Fetal Weight

Objective We compared the sensitivity and specificity of abdominal circumference (AC) alone versus estimated fetal weight (EFW) to predict small for gestational age (SGA) or large for gestational age (LGA) at birth. Study Design We searched the literature for studies assessing an ultrasonographic AC or EFW after 24 weeks to predict SGA or LGA at birth. Case series or studies including anomalous fetuses or multiple gestations were excluded. We computed the sensitivity, specificity, and positive and negative predictive values of any AC or EFW cutoff analyzed by at least two studies. Results We identified 2,460 studies, of which 40 met inclusion criteria (n = 36,519). Four studies assessed AC alone to predict SGA (n = 5,119), and six assessed AC to predict LGA (n = 6,110). Sixteen assessed EFW to predict SGA (n = 13,825), and 22 evaluated EFW to predict LGA (n = 18,896). To predict SGA, AC and EFW < 10th percentile have similar ability to predict SGA. To predict LGA, AC cutoffs were comparable to all EFW cutoffs, except that AC > 35 cm had better sensitivity. Conclusion After 24 weeks, AC is comparable to EFW to predict both SGA and LGA. In settings where serial EFWs are inaccessible, a simpler screening method with AC alone may suffice.

PERBANDINGAN RUMUS JOHNSON DAN RUMUS RISANTO DALAM MENENTUKAN TAKSIRAN BERAT JANIN PADA IBU HAMIL DENGAN BERAT BADAN BERLEBIH

2020 ◽  
Vol 5 (2) ◽  
pp. 24-27
Author(s):  
Leo Jumadi Simanjuntak ◽  
Patrick Anando Simanjuntak
Keyword(s):  
Birth Weight ◽  
Mode Of Delivery ◽  
Mean Difference ◽  
Fetal Weight ◽  
P Value ◽  
Cross Sectional ◽  
Care Workers ◽  
The Mean ◽  
Mean Differences ◽  
Estimated Fetal Weight

Background: Estimated fetal weight (EFW) is important to determine mode of delivery. The use of estimated fetal weight based on fundal height has been widely used, but the use on overweight mothers is still limited. Objectives: This study aimed to compare the Johnson’s and Risanto’s formula in estimating fetal weight on overweight mothers. Method: The design used was cross-sectional, conducted at Mitra Sejati, Herna, and Methodist Sussana Wesley hospital on November 2019 until January 2020. Mann-Whitney test was used to compare EFW mean differences between Johnson’s and Risanto’s to actual birth weight. Paired t-test was used to compare EFW mean differences between Johnson’s and Risanto’s. Results: There were 103 overweight pregnant mothers fulfilling study criteria. The BMI mean was 31,26 ± 5l,54 kg/m2. Both Johnson’s and Risanto’s formula had no significant mean difference compare to actual birth weight, of 332,45 gram on Johnson’s (p value = 0,070) and 298,57 gram on Risanto’s (p value = 0,863). The mean difference between Risanto’s formula and actual birth weight was significantly lower than Johnson’s (mean difference = 33,88 gram, p value = 0,01). Conclusions: EFW measurement using Johnson’s and Risanto’s formula based on fundal height can be applied and used properly by health care workers. Risanto’s formula was more accurate to estimate fetal weight than Johnson’s in overweight mothers.   Latar belakang: Menentukan taksiran berat janin (TBJ) adalah penting bagi penolong persalinan untuk menentukan jenis persalinan. Pengukuran TBJ menggunakan tinggi fundus uterus merupakan metode yang banyak digunakan, namun penggunaan pada ibu hamil dengan berat badan berlebih masih terbatas. Tujuan: Penelitian ini bertujuan membandingkan rumus Johnson dan rumus Risanto dalam menentukan TBJ pada ibu hamil dengan berat badan berlebih. Metode: Desain penelitian adalah potong lintang, data diambil di RSU Mitra Sejati, RSU Herna, dan RSU Methodist Sussana Wesley pada November 2019 – Januari 2020. Dilakukan uji Mann-Whitney untuk membandingkan perbedaan rerata TBJ dengan rumus Johnson dan Risanto dengan berat badan lahir. Uji-t berpasangan digunakan untuk membandingkan perbedaan rerata TBJ dengan rumus Johnson dan Risanto. Hasil: Didapatkan 103 ibu hamil yang memenuhi kriteria penelitian dengan rerata IMT 31,26 ± 5l,54 kg/m2. Terdapat perbedaan rerata TBJ rumus Johnson dan rumus Risanto dibandingkan berat badan lahir sebesar 332,45 gram dan 298,57 gram. Tidak terdapat perbedaan rerata bermakna antara penghitungan TBJ menggunakan rumus Johnson dengan berat badan lahir (p = 0,070) dan rumus Risanto dengan berat badan lahir (p = 0,863). Perbedaan selisih TBJ Risanto dengan berat badan lahir lebih rendah dibandingkan selisih TBJ Johnson dengan berat badan lahir, yaitu sebesar 33,88 gram dan bermakna secara statistik (p = 0,01). Kesimpulan: Pengukuran TBJ menggunakan rumus Johnson dan rumus Risanto dapat diterapkan dan digunakan dengan baik oleh tenaga medis. Rumus Risanto memiliki tingkat ketepatan yang lebih baik dibandingkan rumus Johnson dalam menentukan TBJ pada ibu hamil dengan berat badan berlebih.

Gastroschisis: incidence and prediction of growth restriction

2015 ◽  
Vol 43 (5) ◽  
Author(s):  
Fadi G. Mirza ◽  
Samuel T. Bauer ◽  
Anne Van der Veer ◽  
Lynn L. Simpson
Keyword(s):  
Gestational Age ◽  
Intrauterine Growth Restriction ◽  
Growth Restriction ◽  
Fetal Weight ◽  
Abdominal Circumference ◽  
Month Of Birth ◽  
Intrauterine Growth ◽  
Increased Risk ◽  
Tertiary Center ◽  
Estimated Fetal Weight

AbstractFetuses with gastroschisis are at increased risk of intrauterine growth restriction (IUGR). However, there is a tendency for underestimation of fetal abdominal circumference and hence fetal weight, leading to overdiagnosis of IUGR. Our objective was to evaluate the accuracy of ultrasound for the prediction of being small for gestational age (SGA) at birth in these cases.A retrospective study of prenatally diagnosed cases of gastroschisis was conducted at a tertiary center. Fetal weight was estimated using the formula of Hadlock. IUGR was defined as an estimated fetal weight ≤10th percentile for gestational age. SGA at the time of birth was defined as a birth weight ≤10th percentile for gestational age. The incidence of IUGR on last ultrasound and that of SGA at birth were calculated, and the precision of ultrasound in predicting SGA was determined.IUGR was reported on the last ultrasound prior to delivery in 9/25 cases (36%). Postnatally, 13/25 newborns (52%) were SGA. All sonographically suspected cases of IUGR based on the last ultrasound were SGA at birth. The positive predictive value of the last ultrasound in identifying SGA was 100%.At least half of the infants affected by gastroschisis were SGA at birth. Sonographic estimation of fetal weight within 1 month of birth reliably predicted SGA in infants with gastroschisis.

scholarly journals Accuracy of Ultrasound Estimated Fetal Weight in Small for Gestational Age and Appropriate for Gestational Age Grown Periviable Neonates

2017 ◽  
Vol 35 (08) ◽  
pp. 703-706
Author(s):  
Katherine Himes ◽  
Adriane Haragan
Keyword(s):  
Birth Weight ◽  
Study Design ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Fetal Weight ◽  
Percentage Difference ◽  
Appropriate For Gestational Age ◽  
Absolute Percentage Difference ◽  
The Mean ◽  
Estimated Fetal Weight

Objective Clinicians use estimated fetal weight (EFW) as a proxy for birth weight (BW) in the antenatal period. Our objective was to compare the accuracy of EFW obtained by ultrasound to BW among infants born during the periviable period and determine if accuracy of EFW varied among small for gestational age (SGA) versus appropriate for gestational age (AGA) grown neonates. Study Design We included women who delivered between 230/7 and 256/7 weeks' gestation and had an EFW within 7 days of delivery. Mean percentage difference and median absolute percentage difference between EFW and BW were calculated. Results Our cohort included 226 neonates with a mean gestational age of 241/7 ± 0.8 weeks and median BW of 653 g (interquartile range [IQR]: 580–750 g). The median absolute percentage difference between EFW and BW of fetal weight estimates was 9.2% (IQR: 3.6–17.2). EFW overestimated BW for 75% (n = 171) of the cohort. Among SGA infants, the mean percentage difference in EFW and BW was 16.2 ± 19.4% versus 6.9% ± 13.1% in AGA infants (p = 0.019). Conclusion EFW overestimated BW in this cohort. In addition, ultrasound was less accurate among infants born SGA. These data are important to consider when counseling families facing periviable delivery.

scholarly journals Accuracy and reliability of ultrasound estimation of fetal weight in women with a singleton term pregnancy

2019 ◽  
Vol 9 (1) ◽  
pp. 323
Author(s):  
Reena Sharma ◽  
Rohit Bhoil ◽  
Poojan Dogra ◽  
Sushruti Kaushal ◽  
Ajay Sharma
Keyword(s):  
Birth Weight ◽  
Mode Of Delivery ◽  
Absolute Error ◽  
Mean Absolute Percentage Error ◽  
Fetal Weight ◽  
Percentage Error ◽  
Strong Positive Correlation ◽  
Positive Correlation ◽  
Absolute Percentage Error ◽  
Estimated Fetal Weight

Background: Prenatal estimation of birth-weight is of utmost importance to predict the mode of delivery. This is also an important parameter of antenatal care. This study was conducted to evaluate the accuracy of estimated fetal weight by ultrasound, compared with actual birth weight.Methods: This was a prospective and comparative study comprising 110 pregnant women at term. Patients who had their sonography done within 7 days from date of delivery were included. Fetal weight was estimated by Hadlock 2 formula, the software of which was preinstalled in ultrasound-machine. The estimated fetal weight was compared to the post-delivery birth-weight. The Pearson's correlation coefficient was used and the accuracy of sonographic fetal weight estimation was evaluated using mean error, mean absolute error, mean percentage error, mean absolute percentage error and proportion of estimates within 10% of actual birth weight.Results: Mean estimated and actual birth weights were 3120.8±349.4 gm and 3088.2±404.5 g respectively. There was strong positive correlation between estimated fetal weight and actual birth weight (r = 0.58, p<0.001). The mean percentage error and mean absolute percentage error of ultrasound fetal weight estimations were 1.96±11.8% and 8.7±8.2% respectively. The percentage of estimates within ±10% of the actual birth weight was found to be 67.3%. In 23% of the cases, ultrasound overestimated the birth weight. In 13% of the cases, ultrasound underestimated the birth weight.Conclusions: There was strong positive correlation between actual and sonographically estimated fetal weight. So, ultrasonography can be considered as useful tool for estimating the fetal weight for improving the perinatal outcome.

Sign in / Sign up

Export Citation Format

Share Document