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Fetal Abdominal Circumference

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1. Ultrasound fetal abdominal circumference drop and prediction of abnormal perinatal outcome: a systematic review and a meta-analysis

Ultrasound fetal abdominal circumference drop and prediction of abnormal perinatal outcome: a systematic review and a meta-analysis Print | PDF PROSPERO This information has been provided by the named contact for this review. CRD has accepted this information in good faith and registered the review in PROSPERO. The registrant confirms that the information supplied for this submission is accurate and complete. CRD bears no responsibility or liability for the content of this registration record

2019 PROSPERO

2. A reference range of fetal abdominal circumference growth velocity between 20 and 36 weeks gestation. (PubMed)

A reference range of fetal abdominal circumference growth velocity between 20 and 36 weeks gestation. To create a single equation and reference range for abdominal circumference growth velocity (ACGV) between 20 and 36 weeks in singleton pregnancies.Observational study of pregnant women having routine scans for abdominal circumference (AC) at 20 and 36 weeks' gestation. Exclusion criteria were multiple pregnancy, abnormal karyotype, major fetal abnormalities, and absent data on first-trimester (...) dating. Scan image quality and AC measurement reliability were assessed according to INTERGROWTH-21st criteria. Regression models for the AC mean and standard deviation were fitted separately at 20 and 36 weeks, and z scores were calculated. Abdominal circumference growth velocity was defined as the z score difference between 20 and 36 weeks divided by the interval in days and multiplied by 100.The study population included 3334 fetuses. The equation for ACGV is (((AC36  - 53.090 - 1.081*GA36

2017 Prenatal diagnosis

3. Using fetal abdominal circumference growth velocity to improve the prediction of adverse outcomes in near term small for gestational age fetuses. (PubMed)

Using fetal abdominal circumference growth velocity to improve the prediction of adverse outcomes in near term small for gestational age fetuses. To investigate whether abdominal circumference growth velocity (ACGV) improves the prediction of perinatal outcome in small-for-gestational-age (SGA) fetuses beyond that afforded by estimated fetal weight (EFW) and cerebroplacental ratio (CPR).A cohort of 235 singleton SGA fetuses at 36-38 weeks' gestation was examined. ACGV, EFW and CPR centiles were (...) calculated. ACGV centile was determined using data from a large database of 19-21- and 36-38-week scans in an unselected population. Binary variables of ACGV < 10th , EFW < 3rd and CPR < 5th centiles were defined as abnormal. Two composite adverse outcomes (CAO) were explored: CAO-1 defined as at least one of umbilical artery pH < 7.10, 5-min Apgar score < 7 or neonatal unit admission, and CAO-2 that included in addition hypoglycemia, intrapartum fetal distress and perinatal death. Univariate

2017 Ultrasound in Obstetrics and Gynecology

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

Abdominal Circumference Alone versus Estimated Fetal Weight after 24 Weeks to Predict Small or Large for Gestational Age at Birth: A Meta-Analysis. 28672412 2017 08 31 1098-8785 34 11 2017 Sep American journal of perinatology Am J Perinatol Abdominal Circumference Alone versus Estimated Fetal Weight after 24 Weeks to Predict Small or Large for Gestational Age at Birth: A Meta-Analysis. 1115-1124 10.1055/s-0037-1604059 Blue Nathan R NR Division of Maternal-Fetal Medicine, Department (...) of Obstetrics and Gynecology, University of New Mexico, Albuquerque, New Mexico. Yordan José M Pérez JMP Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of New Mexico, Albuquerque, New Mexico. Holbrook Bradley D BD Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of New Mexico, Albuquerque, New Mexico. Nirgudkar Pranita A PA Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of New Mexico

2017 American journal of perinatology

5. Fetal Abdominal Circumference

Fetal Abdominal Circumference Fetal Abdominal Circumference Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Fetal Abdominal (...) Circumference Fetal Abdominal Circumference Aka: Fetal Abdominal Circumference II. Technique Use ellipse Transverse abdominal Triad Deep portion of ( ) Spine III. Equation Abdominal Circumference = (AP + Transverse) x 1.57 IV. Accuracy Least accurate of measurements for estimating (except 26-32 weeks) Most useful beyond 15 weeks for calculating fetal weight, serial growth and diagnosing References V. Resources AJR Online version of Benson and Doubilet article above Images: Related links to external sites

2018 FP Notebook

6. Unconditional and conditional standards for fetal abdominal circumference and estimated fetal weight in an ethnic Chinese population: a birth cohort study. (Full text)

Unconditional and conditional standards for fetal abdominal circumference and estimated fetal weight in an ethnic Chinese population: a birth cohort study. Diagnosis of intrauterine fetal growth restriction and prediction of small-for-gestation age are often based on fetal abdominal circumference or estimated fetal weight (EFW). The present study aims to create unconditional (cross-sectional) and conditional (longitudinal) standards of fetal abdominal circumference and EFW for use in an ethnic (...) unconditional and conditional standards in z-scores and percentiles for both genders pooled and for each gender separately.A total of 313 women were included, of whom 294 had 3 and 19 had 2 ultrasound scans other than the gestational age dating scan. Fetal abdominal circumference showed a roughly linear trajectory from 18 to 36 weeks of gestation, while EFW showed an accelerating trajectory. Gender differences were more pronounced in the 10(th) percentile than the 50(th) or 90(th) percentiles. As compared

2015 BMC Pregnancy and Childbirth PubMed

7. Unconditional and conditional standards for fetal abdominal circumference and estimated fetal weight in an ethnic Chinese population: a birth cohort study (Full text)

Unconditional and conditional standards for fetal abdominal circumference and estimated fetal weight in an ethnic Chinese population: a birth cohort study Diagnosis of intrauterine fetal growth restriction and prediction of small-for-gestation age are often based on fetal abdominal circumference or estimated fetal weight (EFW). The present study aims to create unconditional (cross-sectional) and conditional (longitudinal) standards of fetal abdominal circumference and EFW for use in an ethnic (...) unconditional and conditional standards in z-scores and percentiles for both genders pooled and for each gender separately.A total of 313 women were included, of whom 294 had 3 and 19 had 2 ultrasound scans other than the gestational age dating scan. Fetal abdominal circumference showed a roughly linear trajectory from 18 to 36 weeks of gestation, while EFW showed an accelerating trajectory. Gender differences were more pronounced in the 10(th) percentile than the 50(th) or 90(th) percentiles. As compared

2015 BMC pregnancy and childbirth PubMed

8. Guidelines on autopsy practice: Fetal autopsy (2nd trimester fetal loss and termination of pregnancy for congenital anomaly)

Guidelines on autopsy practice: Fetal autopsy (2nd trimester fetal loss and termination of pregnancy for congenital anomaly) CEff 150617 1 FINAL Guidelines on autopsy practice: Fetal autopsy (2 nd trimester fetal loss and termination of pregnancy for congenital anomaly) June 2017 Series authors: Dr Michael Osborn, Imperial College Healthcare NHS Trust Professor Jim Lowe, Nottingham University Hospitals NHS Trust Specialist authors: Dr Phillip Cox, Birmingham Women s Hospital NHS Foundation (...) Trust Dr Beata Hargitai, Birmingham Women s Hospital NHS Foundation Trust Dr Tamas Marton, Birmingham Women s Hospital NHS Foundation Trust Unique document number G161 Document name Guidelines on autopsy practice: Fetal autopsy (2 nd trimester fetal loss and termination of pregnancy for congenital anomaly) Version number 1 Produced by The specialist content of this guideline has been produced by Dr Phillip Cox MBBS, FRCPath, PhD, Consultant Perinatal Pathologist; Dr Beata Hargitai, MD, Affiliate

2017 Royal College of Pathologists

9. Diagnostic accuracy of fundal height and handheld ultrasound-measured abdominal circumference to screen for fetal growth abnormalities. (Full text)

Diagnostic accuracy of fundal height and handheld ultrasound-measured abdominal circumference to screen for fetal growth abnormalities. We sought to compare fundal height and handheld ultrasound-measured fetal abdominal circumference (HHAC) for the prediction of fetal growth restriction (FGR) or large for gestational age.This was a diagnostic accuracy study in nonanomalous singleton pregnancies between 24 and 40 weeks' gestation. Patients underwent HHAC and fundal height measurement prior (...) to formal growth ultrasound. FGR was defined as estimated fetal weight less than 10%, whereas large for gestational age was defined as estimated fetal weight greater than 90%. Sensitivity and specificity were calculated and compared using methods described elsewhere.There were 251 patients included in this study. HHAC had superior sensitivity and specificity for the detection of FGR (sensitivity, 100% vs 42.86%) and (specificity, 92.62% vs 85.24%). HHAC had higher specificity but lower sensitivity when

2015 American Journal of Obstetrics and Gynecology PubMed

10. Association between fetal abdominal circumference and birthweight in maternal hyperglycemia. (PubMed)

Association between fetal abdominal circumference and birthweight in maternal hyperglycemia. To compare fetal abdominal circumference and its relationship with birthweight at increasing gestational ages in the context of maternal hyperglycemia of varying severity.Retrospective cohort study.Two centers participated in building one database.A total of 1538 Korean pregnant women were subjected to a two-step approach to diagnose gestational diabetes mellitus.Pregnant women were classified (...) into gestational diabetes mellitus, borderline gestational diabetes mellitus, and normal groups. Fetal abdominal circumferences, which were measured with ultrasound at 4-week intervals starting at 16 weeks of gestation and ending prior to delivery, were evaluated in the groups.The significance of fetal abdominal circumferences as predictors or risk factors of macrosomia/large-for-gestational age.Fetal abdominal circumferences measured from 16 weeks of gestation until prior to delivery predicted birthweight

2014 Acta Obstetricia et Gynecologica Scandinavica

12. Ultrasound (in)accuracy: it's in the formulae not in the technique – assessment of accuracy of abdominal circumference measurement in term pregnancies (Full text)

Ultrasound (in)accuracy: it's in the formulae not in the technique – assessment of accuracy of abdominal circumference measurement in term pregnancies Introduction: Fetal abdominal circumference (AC) is utilised in calculations for the estimation of fetal weight (EFW) and has been proposed as a method of monitoring diabetic pregnancies. We evaluated true ultrasound accuracy by comparing fetal AC biometry with neonatal anthropometry and compared this with standard ultrasound estimations (...) of fetal weight. Methods: A prospective observational study was performed at a tertiary referral centre. Women who were having their confinement of a term, singleton gestation either by induction of labour or elective caesarean section from 2009-2011 were approached to participate. An ultrasound was performed within 24 hours of delivery measuring the biometric parameters of AC, head circumference (HC), biparietal diameter and femur length. Following delivery the AC, HC and birthweight were measured

2015 Australasian journal of ultrasound in medicine PubMed

13. Does the sonographically measured abdominal circumference or estimated fetal weight predict birthweight best? A systematic review

Does the sonographically measured abdominal circumference or estimated fetal weight predict birthweight best? A systematic review Print | PDF PROSPERO This information has been provided by the named contact for this review. CRD has accepted this information in good faith and registered the review in PROSPERO. CRD bears no responsibility or liability for the content of this registration record, any associated files or external websites. Email salutation (e.g. "Dr Smith" or "Joanne

2017 PROSPERO

14. Defining the relationship between fetal Doppler indices, abdominal circumference and growth rate in severe fetal growth restriction using functional linear discriminant analysis. (Full text)

Defining the relationship between fetal Doppler indices, abdominal circumference and growth rate in severe fetal growth restriction using functional linear discriminant analysis. The relationship between Doppler measurements, size and growth rate in fetal growth restriction has not been defined. We used functional linear discriminant analysis (FLDA) to investigate these parameters taking account of the difficulties inherent in exploring relationships between repeated observations from a small (...) number of cases. In 40 fetuses with severe growth restriction, serial abdominal circumference (AC), umbilical, middle cerebral artery (MCA) and ductus venosus Doppler pulsatility index measurements were recorded. In 11 singleton fetuses with normal growth, umbilical artery pulsatility index only was measured. Data were expressed as z-scores in relation to gestation and analysed longitudinally using FLDA. In severe growth restriction, the Spearman correlation coefficients between umbilical artery

2013 Journal of the Royal Society, Interface / the Royal Society PubMed

15. Outcome in early-onset fetal growth restriction is best combining computerized fetal heart rate analysis with ductus venosus Doppler: insights from the Trial of Umbilical and Fetal Flow in Europe. (Full text)

Flow in Europe was a European, multicenter, randomized trial aimed to determine according to which criteria delivery should be triggered in early fetal growth restriction. We present the key findings of the primary and secondary analyses.Women with fetal abdominal circumference <10th percentile and umbilical pulsatility index >95th percentile between 26-32 weeks were randomized to 1 of 3 monitoring and delivery protocols. These were: fetal heart rate variability based on computerized (...) Outcome in early-onset fetal growth restriction is best combining computerized fetal heart rate analysis with ductus venosus Doppler: insights from the Trial of Umbilical and Fetal Flow in Europe. Early-onset fetal growth restriction represents a particular dilemma in clinical management balancing the risk of iatrogenic prematurity with waiting for the fetus to gain more maturity, while being exposed to the risk of intrauterine death or the sequelae of acidosis.The Trial of Umbilical and Fetal

2018 American Journal of Obstetrics and Gynecology PubMed

16. Fetal Growth Patterns in Pregnancy-Associated Hypertensive Disorders: NICHD Fetal Growth Studies. (PubMed)

constituted the normotensive group. Growth curves for estimated fetal weight and individual biometric parameters including biparietal diameter, head circumference, abdominal circumference, femur and humerus length were calculated for each group using linear mixed models with cubic splines. Global and weekly pairwise comparisons were performed between women with a hypertensive disorder compared with normotensive women to analyze differences while adjusting for confounding variables. Delivery gestational (...) significantly smaller fetal abdominal circumference between 23 to 31 and 33 to 37 weeks' gestation (weekly pair-wise P values <.04). Scattered weekly growth differences were noted on other biometric parameters between these two groups. The consistent differences in estimated fetal weight and abdominal circumference were not observed between women with other hypertensive disorders and those who were normotensive. Women with severe preeclampsia delivered significantly earlier (mean gestational age 35.9 ± 3.2

2019 American Journal of Obstetrics and Gynecology

17. Evaluating the accuracy and precision of sonographic fetal weight estimation models in extremely early-onset fetal growth restriction. (PubMed)

% - 49.5%) and random error (median 11.6%; range 9.7% - 23.8%) varied widely across models. The best performing model was Hadlock head circumference-abdominal circumference-femur length (HC-AC-FL), regardless of gestational age, fetal size, fetal presentation or asymmetry, with an overall systematic error of 1.5% and random error of 9.7%. Despite this, it only calculated the estimated fetal weight within 10% of birthweight in 64.6% of cases. There was a weak negative relationship between mean (...) Evaluating the accuracy and precision of sonographic fetal weight estimation models in extremely early-onset fetal growth restriction. Birthweight is a critical predictor of survival in extremely early-onset fetal growth restriction (fetal growth restriction diagnosed pre-28 weeks' gestation, with abnormal umbilical/uterine artery Doppler waveforms), therefore accurate fetal weight estimation is a crucial component of antenatal management. Currently available sonographic fetal weight estimation

2019 Acta Obstetricia et Gynecologica Scandinavica

18. Third Trimester Fetal Well-Being Studies: Criteria and Managing Results

if it was unfavourable. Fetal Biometry and Estimated Fetal Weight (EFW) ? Routinely measure: o Biparietal diameter (BPD) o Head circumference (HC) o Abdominal circumference (AC) o Femur length (FL) ? Take at least two measurements of each view and report the best or mean measurement. ? Outliers should trigger the need for a repeat measurement prior to reporting. ? Routinely report the Estimated Fetal Weight (EFW) using Hadlock’s 1 formula (for weight in grams) followed by the Alberta Health gender specific growth (...) , including but not limited to: o Follow up of previously identified, or suspected, fetal abnormality o Previous complicated obstetric history o Suspected or known low placental position, marginal or placental previa, vasa previa o Bleeding, fluid loss or abdominal pain Third Trimester Fetal Well-Being Studies: Criteria & Managing Results | June 2017 Clinical Practice Guideline Page 2 of 16 Recommendations o Maternal medical conditions associated with increased fetal risks (e.g., hypertensive disorders

2017 Toward Optimized Practice

19. Glycemic control and fetal abdominal circumference (Full text)

Glycemic control and fetal abdominal circumference To study about the correlation between the glycemic status and increase in fetal abdominal circumference in gestational diabetes patients and its relationship with fetal birth weight.Seventy-five gestational diabetes mellitus (GDM) patients were taken up for study with duly informed consent and suggested for anthropometry profile and glycemic profile with HbA1C. Fetal abdominal circumference was measured during routine scans. The patients were (...) followed up till delivery and the fetal birth was noted.Seventy-five gestational diabetic mothers who have attended a secondary level diabetic clinic and on regular follow-up were included in the study.Pre-GDM mothers, patients with co-morbid disease were excluded from the study.Fetal abdominal circumference correlated well with fluctuating glycemic control and fetal birth weight.

2012 Indian journal of endocrinology and metabolism PubMed

20. Fetal Abdominal Circumference

Fetal Abdominal Circumference Fetal Abdominal Circumference Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Fetal Abdominal (...) Circumference Fetal Abdominal Circumference Aka: Fetal Abdominal Circumference II. Technique Use ellipse Transverse abdominal Triad Deep portion of ( ) Spine III. Equation Abdominal Circumference = (AP + Transverse) x 1.57 IV. Accuracy Least accurate of measurements for estimating (except 26-32 weeks) Most useful beyond 15 weeks for calculating fetal weight, serial growth and diagnosing References V. Resources AJR Online version of Benson and Doubilet article above Images: Related links to external sites

2015 FP Notebook

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