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.

Comparison between clinical estimated fetal weights (CEFW) Versus Ultrasonographic estimated fetal weight (UEFW) for co-relation with actual birth weight (ABW) in 3rd Trimester of Pregnancy

2020 ◽  
Vol 3 (1) ◽  
pp. e1-e4
Author(s):  
Rabia Razaq
Keyword(s):  
Birth Weight ◽  
Pearson Correlation ◽  
Tertiary Care ◽  
Fetal Weight ◽  
P Value ◽  
Cross Sectional ◽  
Positive Correlation ◽  
Study Results ◽  
The Mean ◽  
Estimated Fetal Weight

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.

scholarly journals Risanto’s Formulas is more Accurate in Determining Estimated Fetal Weight Based on Maternal Fundal Height

2016 ◽  
pp. 149-151
Author(s):  
Hanifah I Titisar ◽  
Risanto Siswosudarmo
Keyword(s):  
Birth Weight ◽  
Obstet Gynecol ◽  
Cross Sectional Study ◽  
Mean Difference ◽  
Fetal Weight ◽  
Sectional Study ◽  
Cross Sectional ◽  
The Mean ◽  
Estimated Fetal Weight ◽  
Uterine Fundus

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

scholarly journals Correlation of Actual Fetal Weight with Clinically and Ultrasonographically detected Macrosomia cases among Diabetic Mother

2019 ◽  
Vol 16 (2) ◽  
pp. 38-44
Author(s):  
Shamsun Nahar ◽  
Kashefa Khatun ◽  
Tahmina Khanum ◽  
TA Chowdhury ◽  
AS Mohiuddin
Keyword(s):  
Diabetes Mellitus ◽  
Birth Weight ◽  
Cross Sectional Study ◽  
Diabetic Mother ◽  
Fetal Weight ◽  
Cross Sectional ◽  
Clinical Method ◽  
The Mean ◽  
Diagnosed Diabetes ◽  
Estimated Fetal Weight

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

scholarly journals Ultrasonographic measurement of placental thickness and its correlation with estimated fetal weight

2017 ◽  
Vol 7 (1) ◽  
pp. 287
Author(s):  
Nasreen Noor ◽  
Akanksha Jain ◽  
Shazia Parveen ◽  
Syed Manazir Ali
Keyword(s):  
Birth Weight ◽  
Fetal Weight ◽  
P Value ◽  
Antenatal Visit ◽  
Singleton Pregnancy ◽  
Ultrasound Evaluation ◽  
Fetal Birth Weight ◽  
The Mean ◽  
Placental Thickness ◽  
Estimated Fetal Weight

Background: The human placenta develops with the principal function of providing nutrients and oxygen to the fetus. Objective of present study was to assess the relationship between placental thickness with estimated fetal weight.Methods: The present study was a prospective observational study and includes 152 pregnant women with known last menstrual period, history of regular menstruation, singleton pregnancy and aged between 20 and 35 years. After Institutional Ethics Committee approval all recruited women were observed for baseline demographic and obstetric data including age, parity and past medical events at first antenatal visit. All women provided an informed written consent and underwent ultrasound evaluation of placental thickness at 18 to 40 weeks of gestation.Results: In the present study the mean placental thickness between the ranges of 18-40mm was 31.63±4.79mm and the mean estimated fetal birth weight was 2145.86±121.24grams. The pearson’s correlation coefficient between the two was 0.982. Thus, proving the significant positive correlation between placental thickness and estimated fetal birth weight (p-value <0.001).Conclusions: Estimated fetal weight is a very important component of antenatal care in which ultrasonography plays an important role. Placental thickness measured at the level of umblical cord insertion can be used as an accurate sonographic indicator in the assessment of fetal weight because of its linear correlation. Therefore, it can be used as an additional sonographic tool in assessing fetal weight.

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 Difference of Procalcitonin Levels in Gram-Positive and Gram-Negative Bacterial Sepsis Patients of Indonesia Army Central Hospital Gatot Soebroto in 2016

2022 ◽  
Vol 13 (1) ◽  
pp. 38
Author(s):  
Nindy Handayani ◽  
Soroy Lardo ◽  
Nunuk Nugrohowati
Keyword(s):  
Mean Difference ◽  
P Value ◽  
Central Hospital ◽  
Bacterial Sepsis ◽  
Gram Positive ◽  
Cross Sectional ◽  
Gram Negative ◽  
Gram Positive Bacteria ◽  
Significant Difference ◽  
The Mean

Introduction: Procalcitonin is known as a marker of infection and indicator for severity of infections. In sepsis, elevated procalcitonin levels in blood have a significant value that can be used as a sepsis biomarker. The aim of this study was to determine the mean difference of procalcitonin levels in Gram-positive and Gram-negative bacterial sepsis patients.Methods: This study used quantitative method with cross sectional approach. The sample of this study were bacterial sepsis patients of Indonesia Army Central Hospital Gatot Soebroto in 2016 which were divided into two groups: Gram-positive and Gram-negative bacterial sepsis patients with the number of each group was 30 samples. The data were analyzed by using independent t test.Results: This study showed that mean levels of procalcitonin in Gram-positive bacterial sepsis patients was 6.47 ng/ml and Gram-negative was 66.04 ng/ml. There was a significant difference between mean levels of procalcitonin in Gram-positive and Gram-negative bacterial sepsis patients of Indonesia Army Central Hospital Gatot Soebroto in 2016 with p value = 0.000 (p < 0.05).Conclusion: The mean difference of procalcitonin levels in Gram-negative bacterial sepsis patients were higher than Gram-positive bacterial sepsis patients, because Gram-negative bacteria have lipopolysaccharide which is a strong immunostimulator and increases TNF-α production higher than Gram-positive bacteria. 

P037 Does perinatal history and delivery enhance the risk of hip involvement in Juvenile Idiopathic Arthritis patients? A case-control study

Rheumatology ◽  
2021 ◽  
Vol 60 (Supplement_5) ◽  
Author(s):  
Makhlouf Yasmine ◽  
Hanene Ferjani ◽  
Affes Hassen ◽  
Kaouther Maatallah ◽  
Dorra Ben Nessib ◽  
...  
Keyword(s):  
Juvenile Idiopathic Arthritis ◽  
Birth Weight ◽  
Mode Of Delivery ◽  
Hip Dislocation ◽  
Normal Growth ◽  
Psychomotor Development ◽  
Delivery Mode ◽  
Cross Sectional ◽  
Male Predominance ◽  
The Mean

Abstract Background Children are vulnerable to congenital and developmental hip disorders. One of the causes of coxitis among children is juvenile idiopathic arthritis (JIA). Existing data on associations between maternal and early childhood exposures highlighted the potential role of prematurity in JIA [1]. The aim of this study was to compare perinatal history in JIA children with coxitis compared with patients with other causes of hip involvement. Methods We conducted a cross-sectional study including children with JIA complicated with coxitis and patients with other causes of hip involvement. We recorded sociodemographic data and the hip disorder. The mode of delivery, the values of the neonatal birth weight as well as the delivery method (vaginal, cesarean (C) section) were retrieved from medical records. We divided the patients into two groups: G1: JIA patients with coxitis and G2: patients with other causes of hip involvement. We compared delivery mode, as well as perinatal outcomes between the two groups. Results The study included 81 patients. There was a male predominance (59.3% males vs 40.7% females) with a sex-ratio of 1.45. The mean age of diagnosis was 9.9 years [1–16]. The mean disease duration was 9 months [0.1–156]. Hip disorders were distributed as follows: Legg-Calvé-Perthes disease (n = 3), epiphysiolysis of the femur head (n = 30), transient synovitis of the hip n = 7, septic hip (n = 10), tumor (n = 4), hip dislocation (n = 8), hip dysplasia (n = 4), juvenile idiopathic arthritis with coxitis (n = 15). The mean birth weight of the children was 3.4 kg [1.3–9]. About half of the patients had a natural delivery (55.6%) and most of them a face presentation (71.6%). A twin pregnancy was reported only in 2.5% of cases. Childbirth complications were reported in 7.4% of cases: umbilical cord prolapse (n = 1), Meconium aspiration syndrome (n = 1), failure to descend (n = 1), acute fetal distress (n = 3). Most of them had a normal growth and psychomotor development (96% and 97% respectively). There was no statistical difference between the two groups regarding delivery mode and fetal presentation before birth (P = 0.07, P = 0.48 respectively). Similarly, weight at birth was similar between JIA children and patients with other hip involvement (P = 0.52). Conclusion Our study showed that maternal and perinatal history did not differ between JIA patients with coxitis and patients with other causes of hip involvement.

scholarly journals Mean difference of visual acuity with auto refraction and subjective refraction.

2020 ◽  
Vol 36 (1) ◽  
Author(s):  
Shakeel Ahmad ◽  
Rashida RIaz ◽  
Muhammad Haseeb ◽  
Hafiza Ammara Rasheed ◽  
Samia Iqbal
Keyword(s):  
Visual Acuity ◽  
Demographic Data ◽  
Anterior Segment ◽  
Cross Sectional Study ◽  
Mean Difference ◽  
P Value ◽  
Cross Sectional ◽  
Department Of Ophthalmology ◽  
The Mean ◽  
Cylindrical Axis

Purpose: To compare the mean difference of visual acuity as measured by auto refraction and subjective refraction. Study Design:  Descriptive cross-sectional study. Place and Duration of Study:  Department of ophthalmology, Services hospital Lahore from November 2013 to April 2014. Material and Methods:  Using non-probability consecutive sampling 300 eyes of 300 patients fulfilling inclusion criteria were recruited through OPD registration slip. Demographic data including age and gender was recorded. Complete ophthalmic examination was performed. This included measurement of refractive error by auto-refraction as well as subjective refraction. Detailed anterior segment examination with slit lamp and dilated fundus examination with indirect ophthalmoscopy was performed. The collected data was analyzed by using software SPSS version 17. Results:  The mean age of patients was 34.71 ± 7.45 years. There were 156 (52%) males and 144 (48%) females. There were 263 (87.69%) patients who had visual acuity of 6/6 and 37 (12.33%) had 6/9. Mean spherical auto-refraction and subjective refraction was 0.0290 ± 2.58 and -0.2842 ± 2.37 D with mean difference of -0.3133 ± 1.27 D. The mean cylindrical auto and subjective refraction in this study was -.9742 ± 0.78 D and -0.7500 ± 0.81 D and mean difference was 0.2242 ± 0.74 D. The mean cylindrical axis of auto and subjective refraction was 114.88 ± 49.75 and 115.60 ± 49.70 with mean difference as 0.72 ± 3.02 D (p-value < 0.05). Conclusion:  Difference of spherical, cylindrical and cylindrical axis in auto and subjective refraction was significantly different.

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.

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