scholarly journals The Accuracy of Risanto's Formula and Ultrasound Measurement in Estimating Fetal Weight

2018 ◽  
Vol 5 (1) ◽  
pp. 10
Author(s):  
Elsina Krisnawati Pietersz ◽  
Irwan Taufiqur Rachman ◽  
Risanto Siswosudarmo

Background: Accurate estimated fetal weight (EFW) is crucial in determining delivery management. Several methods to estimate fetal weight were used such as abdominal palpation, measurement of symphisis fundal height (SFH), and ultrasound examination. Risanto’s formula based on Indonesian population had been already proven to be more accurate than Johnson’s formula. The formula was as follows: Y = 125 X - 880 where Y was EFW in grams, X was SFH in cm, and 125 was the constanta.Objective: To compare the accuracy of Risanto’s formula and ultrasound examination in estimating fetal weight.Method: A cross sectional study was carried out in Sardjito hospital, Faculty of Medicine Universitas Gadjah Mada, from March 2013 to March 2014. A total of 400 pregnant women meeting the inclusion criteria at 37 – 42 weeks of gestation were recruited. The estimated fetal weight using Risanto’s formula (R_EFW) was compared to the estimated fetal weight using ultrasound measurement (U_EFW). The U_EFW was done by obstetricians on duty or senior residents using Hadlock’s formula. Actual birth weight (ABW) was measured using the same calibrated baby scale. Accuracy was determined by comparing the mean difference between the R_EFW minus ABW (ΔR_EFW) and the U_EFW minus ABW (ΔU_EFW). Paired t-test was used for statistical analysis.Result and Discussion: The mean ABW was 3025.3 ± 414.6 gram and the mean R_EFW was 2972.7 ± 365.4 grams, while the mean U_EFW was 3058.7 ± 423.2 grams. The mean ΔR_EFW was lower than the mean ΔU_EFW (178.2 ± 147.6 grams vs 197.5 ± 155.4 grams; 95% CI 1.24 – 36.68; p = 0.04).Conclusion: Risanto’s formula was more accurate than ultrasound measurement in estimating fetal weight.Keywords: Estimated fetal weight, Risanto’s formula, Ultrasonography, Fundal height

2019 ◽  
Vol 16 (2) ◽  
pp. 38-44
Author(s):  
Shamsun Nahar ◽  
Kashefa Khatun ◽  
Tahmina Khanum ◽  
TA Chowdhury ◽  
AS Mohiuddin

Background: Correlation of actual fetal weight with clinically and ultrasonographically detected macrosomia cases among diabetic mother is very essential for the management of the neonates. Objectives: The purpose of the present study was to correlate actual fetal weight with clinically and ultrasonographically detected macrosomia cases among diabetic mother. Methodology: This cross-sectional study was carried out in inpatient Department of Obstetrics and Gynecology and in outpatients Department of Radiology and Imaging, BIRDEM during the period of April 2005 to March 2007. Pregnant women with diagnosed diabetes mellitus (DM) or gestational diabetes mellitus (GDM) selected for caesarean section or induction of labour, gestational age 236 weeks having 23700 gm by clinical method were included in this study. First clinical estimation of fetal weight was done by the investigator then Radiologist estimated the fetal weight without knowing the EFW by clinical method. The actual birth weight was estimated after the birth of the babies. Result: The mean (+SD) age of the patients was 30.8±5.1 years ranged from 20 to 40 years. A significant correlation (r=0.5081; p<0.05) was found between clinically estimated fetal weight (gm) and actual birth weight (macrosomia) (gm). Significant correlation (r=0.6199; p<0.05) was found between sonographically estimated fetal weight (gm) and actual birth weight (macrosomia) (gm). Significant correlation (r=0.4863; p<0.05) was found between clinically estimated fetal weight (gm) and sonographically estimated fetal weight (gm). Conclusion: The study findings indicate that clinical method can be used instead of ultrasonography for prediction of macrosomia in diabetic mother Journal of Science Foundation 2018;16(2):38-44


Author(s):  
Hanifah I Titisar ◽  
Risanto Siswosudarmo

Objectives: To compare the accuracy of Johnson’s and Risanto’s formulas in determining estimated fetal weight based on maternal fundal height (FH). Methods: This was a cross sectional study, consisting of 655 pregnant women from Dr. Sardjito Hospital and affiliated hospital sat 37-42 weeks of gestation. Fundal height was measured from the symphisis to the top of uterine fundus, using inverted unelastic flexible tape. EFW based on Johnson’s and Risanto’s formulas were compared with the actualbirth weight. Wilcox on analysis was used for statistical analysis. Results: Mean EFW of Johnson’s formula was 3136 ± 392.2 grams and EFW of Risanto’s formula was 3056 ± 322.5 grams and mean actual birth weight was 3021 ± 341.1 grams. The mean difference between EFW of Johnson’s formula and the actual birth weight was 156.1 ± 107.3 grams, and mean difference between EFW of Risanto’s formula and the actual birth weight was 100.8 ± 86.1 grams. Those two differences was statistically significant (p=0.001). Conclusion: This study showed that Risanto’s formula was more accurate than Johnson’s in predicting birth weight based on the maternal’s fundal height. [Indones J Obstet Gynecol 2013; 1-3: 149-51] Keywords: actual birth weight, fundal height, Johnson’s formula, Risanto’s formula


2020 ◽  
Vol 5 (2) ◽  
pp. 24-27
Author(s):  
Leo Jumadi Simanjuntak ◽  
Patrick Anando Simanjuntak

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.


2020 ◽  
Vol 3 (1) ◽  
pp. e1-e4
Author(s):  
Rabia Razaq

Background: Accurate prenatal estimation of birth weight is useful in the management of labour and delivery. Objective: To determine the correlation between clinical estimated fetal weight with actual birth weight in 3rd trimester of pregnancy and to determine the correlation between Ultrasonographic fetal weight assessment with actual birth weight in 3rd trimester of pregnancy. Material & Methods: This cross sectional study with non-probability purposive sampling technique was conducted in three tertiary care hospitals of Punjab, Department of Obstetrics & Gynaecology, Allied Hospital, Faisalabad, Lady Aitcheson Hospital Lahore and Lady Willington Hospital Lahore. Informed consent was obtained from each female to use their data for research purpose. Demographic details were also noted. Then females undergo CEFW was done by using Johnson’s formula. Then ultrasonography was done on every female by experienced radiologists to get UEFW. FW measurement was done by using Shepard formula. Then females were followed-up till delivery of fetus. Actual birth weight (ABW) was noted on birth. Pearson correlation was used to measure the correlation coefficient for CEFW and UEFW with ABW. P-value≤0.05 was taken as significant. Results: In our study the mean age of the patients was 29.60±6.23 years and the mean gestational age of 33.30±2.31 weeks. The mean BMI value of the patients was 23.08±1.26 Kg/m2, the mean CEFW value 2219.60±556.41 grams while the mean UEFW value of the patients was 2227.77±521.94 grams and the mean value of ABW of the patients was 2284.00±515.29 grams. In our study the positive correlation was found between the CEFW, UEFW with ABW of the baby. Conclusion: Our study results concluded that both the clinical estimation ultrasonography estimation showed the feasible and reliable results. Both showed positive correlation with actual birth weight.


Author(s):  
Dwi Pratika Anjarwati ◽  
Yudhistya Ngudi Insan Ksyatria ◽  
Widardo Widardo

abstract Objective: to investigate the accuracy of estimated fetal weight using Hadlock II formula in RSUD Dr Moewardi. Methods: This cross-sectional study was conducted at RSUD Dr Moewardi in June 2017. Subjects were women who gave birth at RSUD Dr Moewardi from August 2014 to March 2017. The method of collecting data by quoting the medical record as required. Data analysis was done by using linear regression statistic test. Result: By distribution, the number of samples that, according to the standard, is 81.67 %. With the value of R = 0.706 which means that the relationship between two research variables are strong and the value of R Square = 0.499 which means that estimated fetal weight using Hadlock II formula has contribution 49.9 % on fetal birth weight and 50.1 % others by other factors. Conclusion: Fetal weight estimation using Hadlock II formula in RSUD Dr Moewardi has low accuracy. Operator skills training is required to improve the accuracy of estimated fetal weight. Keywords:  fetal birth weight,  fetal weight estimation, Hadlock II   abstrak Tujuan : Mengetahui keakuratan taksiran berat janin menggunakan rumus Hadlock II di RSUD Dr Moewardi. Metode : Penelitian ini adalah penelitian observasional analitik. Penelitian ini dilaksanakan di RSUD Dr Moewardi pada Juni 2017. Subjek penelitian ini adalah data rekam medis dari ibu hamil yang mengalami partus di RSUD Dr Moewardi pada Agustus 2014 – Maret 2017. Metode pengumpulan data dengan mengutip data rekam medis pasien sesuai ketentuan. Analisis data dilakukan dengan uji statistik regresi linier. Hasil : Secara distribusi, jumlah sampel yang memenuhi standar yaitu   81,67 %. Dengan nilai R = 0,706 yang artinya bahwa hubungan kedua variabel penelitian ada dalam kategori kuat dan nilai R Square = 0,499 yang berarti taksiran berat janin menggunakan rumus Hadlock II memiliki pengaruh kontribusi sebesar 49,9% terhadap berat bayi lahir sedangkan 50.1 % lainnya dipengaruhi oleh faktor lain. Kesimpulan : Taksiran berat janin menggunakan rumus Hadlock II  di RSUD Dr Moewardi kurang akurat. Perlu dilakukan pelatihan ketrampilan operator sehingga diharapkan dapat meningkatkan keakuratan taksiran berat janin.  Kata kunci:   berat bayi lahir , Hadlock II, , taksiran berat janin


2019 ◽  
Vol 7 (4) ◽  
pp. 478-482
Author(s):  
Mojgan Barati ◽  
Sara Masihi ◽  
Elnaz Barahimi ◽  
Mohammad Ali Khorrami

Objectives: The identification of at-risk fetus is considered as one of the most difficult challenges for clinicians and researchers although the clinical significance of placental calcifications (PCs) and its relation to adverse pregnancy outcome are controversial. Therefore, the present study aimed to evaluate the relationship between PC and estimated fetal weight (EFW) percentile at 30-34 weeks of pregnancy. Materials and Methods: This prospective cross-sectional study was carried out on all pregnant women except for multiple pregnancy subjects who were admitted to an outpatient perinatal center from October 2016 to September 2018. Several parameters were measured at 30-34 weeks of pregnancy, including EFW, umbilical artery pulsatility index (PI), middle cerebral artery PI, cerebroplacental ratio (CPR), right and left uterine artery PI, along with right and left uterine artery notch. Finally, the calcification of the placenta with any shape and degree was determined as well. Results: In this study, 739 pregnant women were evaluated for PC, including patients with PC (9.87%), small-for-gestational age (SGA, 3.65%), and those with at least one abnormal Doppler index (23.95%). Patients with PC and those with at least one abnormal Doppler index had significantly higher SGA (29.62% and 12.42%, respectively). In addition, there were 55.55% and 30.13% patients with SGA and PC in the group with at least one abnormality in terms of Doppler indices. Conclusions: In general, the findings showed that PC is more common in SGA. Based on the results, at least one abnormality in Doppler indices was more common in PC and SGA, and uterine artery Doppler abnormality was the most prevalent abnormal findings in the arterial Doppler. Thus, PC may be an important marker for adverse pregnancy outcomes.


2021 ◽  
Vol 15 (10) ◽  
pp. 3517-3519
Author(s):  
Saba Pario ◽  
Ghazala Nasim Pasha ◽  
Shaista Bashir Anwar ◽  
Sadia Suboohi ◽  
Farzana Rehman ◽  
...  

Objective: To assess the correlation of fetal weight at full-term pregnancy by ultrasound method and its authenticity with actual birth weight in obstetrics department of Creek general hospital of Karachi. Methodology: A Prospective cross-sectional study was conducted at Obstetrics and Gynecology department of Creek General hospital affiliated with United Medical and Dental College Karachi from October 2020 to June 2021. Non-Probability Sampling technique was employed. Estimated sample size was n=114, however to increase the precision of study 163 samples were collected. All the pregnant singleton women were enrolled in this study who were examined for fetal weight calculation sonographically at 37th to 40th weeks of gestation. Post-natal neonatal weight was recorded. Results: The mean fetal weight estimated by ultrasound in our survey was 2.9 kg, while mean, actual birth weight was 2.89 Kg. Conclusion: Our study found positive association between the actual birth weight and the estimated fetal weight. Keywords: Fetus, Correlation, Mean, Ultrasound, Birth weight


2014 ◽  
Vol 40 (3) ◽  
pp. 21-23 ◽  
Author(s):  
Rafia Parveen ◽  
Akhteruddin Ahmed ◽  
AS Mohiuddin ◽  
Shaikh Shofiur Rahman ◽  
Tapesh Kumar Paul

This study was conducted to find out the correlation between amniotic fluid index (AFI) & estimated fetal weight (EFW) in third trimester of pregnancy. This cross sectional study was carried out on 105 women with normal singleton pregnancies at third trimester. The pregnant women were subdivided into three groups. The AFI & EFW were evaluated according to gestational age groups & fetal sex. Significant positive correlations were found between estimated fetal weight and amniotic fluid index in female fetuses of all three groups. In male fetuses, there was a significant positive correlation between AFI & EFW in group III (38 to 40 weeks), but insignificant correlation in other two groups. No study was conducted previously in Bangladesh to see the relationship between AFI & EFW. This study shows that amniotic fluid volume can be evaluated more precisely during third trimester of pregnancy by taking estimated fetal weight into consideration in third trimester of pregnancy. DOI: http://dx.doi.org/10.3329/bmj.v40i3.18669 Bangladesh Medical Journal 2011 Vol.40(3):21-23


2021 ◽  
Vol 28 (10) ◽  
pp. 1428-1432
Author(s):  
Summan Hameed ◽  
Zobia Saleem ◽  
Mehwish Rauf ◽  
Tayyaba Aslam ◽  
Aqsa Hafeez ◽  
...  

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.


10.52011/0077 ◽  
2021 ◽  
Vol 22 (2) ◽  
Author(s):  
Eliana Velastegui-Ayala ◽  
Fabricio Gonzállez-Andrade

Introduction: the aim of this trial was to estimate fetal weight by clinical and ultrasound methods and to compare with the weight at birth in full-term newborns. Methods: This is an epidemiological, observational, cross-sectional study of a cohort of healthy full-term newborns. The sample size was 102 neonates born at the Pablo Arturo Suarez Hospital, in Quito, Ecuador, from November 2019 to January 2020. Results: In full-term neonates, the estimate on ultrasound was 80.00%, while in the clinical assessment was 72.29%. The profile of newborn analyzed is man, mestizo, Ecuadorian, born in the highlands region, with a mean gestational age of 38.67 weeks and a mean birth weight of 3,023 grams, in whom it estimated the fetal weight through ultrasound and clinical assessment. The estimation of the absolute error in both methods analyzed was 2.43% to ultrasound and -4.65% to clinical assessment, and both showed moderate concordance, 78.2% to ultrasound, and 85.6% to clinical assessment. Multivariate analysis showed the neonates with modified weight by ultrasound are 13.44 times more likely to show altered weight at birth, while neonates with modified weight by the clinical assessment are 11.95 times more likely to show altered weight at birth. Conclusions: Accuracy in the clinical assessment was always higher than in the ultrasound method, especially in low weight newborns.


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