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Fetal Head Circumference

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1. Second-trimester fetal head circumference in >350.000 pregnancies: Outcome and suggestion for sex-dependent cutoffs for small heads. (PubMed)

Second-trimester fetal head circumference in >350.000 pregnancies: Outcome and suggestion for sex-dependent cutoffs for small heads. To explore the relationship between small fetal second-trimester head circumference (HC) and pregnancy outcome, and identify a cutoff point for offering genetic testing.Data from second-trimester scans in Denmark were linked to national registers. Fetuses with anomalies diagnosed before this scan were excluded. Fetuses were grouped according to HC z-score.We (...) included 352,515 singleton fetuses. The mean HC was significantly larger among males than among females with z-scores averaging 0.52 more in males. Small HC was associated with chromosomal anomaly, malformations of the CNS and heart, miscarriage/perinatal death, termination, preterm delivery, and intrauterine growth restriction (test for trend: p<0.001 for all outcomes). Fetuses in the group with z-score <-3 had the highest incidence of adverse outcome, irrespective of fetal sex. In the groups with z

2019 Prenatal diagnosis

2. The relationship between preoperative fetal head circumference and 2-year cognitive performance after laser surgery for twin-twin transfusion syndrome. (PubMed)

The relationship between preoperative fetal head circumference and 2-year cognitive performance after laser surgery for twin-twin transfusion syndrome. To determine the relationship between preoperative fetal head circumference (HC) and cognitive performance among children treated with laser surgery for twin-twin transfusion syndrome (TTTS).Donor and recipient twin HCs were measured preoperatively (16-26 weeks' gestation) and at 2 years corrected age. Multilevel multivariate regression models

2018 Prenatal diagnosis

3. Sonographic Large Fetal Head Circumference and Risk of Cesarean Delivery. (PubMed)

Sonographic Large Fetal Head Circumference and Risk of Cesarean Delivery. Persistently high rates of cesarean deliveries are cause for concern for physicians, patients, and health systems. Prelabor assessment might be refined by identifying factors that help predict an individual patient's risk of cesarean delivery. Such factors may contribute to patient safety and satisfaction as well as health system planning and resource allocation. In an earlier study, neonatal head circumference was shown (...) to be more strongly associated with delivery mode and other outcome measures than neonatal birthweight.In the present study we aimed to evaluate the association of sonographically measured fetal head circumference measured within 1 week of delivery with delivery mode.This was a multicenter electronic medical record-based study of birth outcomes of primiparous women with term (37-42 weeks) singleton fetuses presenting for ultrasound with fetal biometry within 1 week of delivery. Fetal head circumference

2018 American Journal of Obstetrics and Gynecology

4. Estimated date of delivery based on second trimester fetal head circumference; a population based validation of 21451 deliveries. (PubMed)

Estimated date of delivery based on second trimester fetal head circumference; a population based validation of 21451 deliveries. Fetal biometry is used for determining gestational age and estimated date of delivery (EDD). However, the accuracy of the EDD depends on the assumed length of pregnancy included in the calculation. This study aimed at assessing the actual pregnancy length and accuracy of EDD prediction based on fetal head circumference measured at the second trimester.This (...) was a population-based observational study with the following inclusion criteria: singleton pregnancy, head circumference dating in the second trimester, spontaneous onset or induction of delivery ≥ 294 days of gestation, live birth. The EDD was set anticipating a pregnancy length of 282 days. Bias in the prediction of EDD was defined as the difference between the actual date of birth and the EDD.Head circumference measurements were available for 21 451 pregnancies. Ultrasound-dated pregnancies had a median

2018 Acta Obstetricia et Gynecologica Scandinavica

5. Fetal head circumference and subpubic angle are independent risk factors for unplanned cesarean and operative delivery. (PubMed)

Fetal head circumference and subpubic angle are independent risk factors for unplanned cesarean and operative delivery. The aim of this study was to ascertain whether combined ultrasound assessment of fetal head circumference (HC) and maternal subpubic angle (SPA) prior to the onset of labor may predict the likelihood of an unplanned operative delivery (UOD) in nulliparous women at term.Prospective cohort study of singleton pregnancies in cephalic presentation. Pregnancies experiencing UOD (...) secondary to fetal distress were excluded. HC was assessed transabdominally and SPA values were obtained from a reconstructed coronal plane on three-dimensional (3D) ultrasound performed translabially at 36-38 weeks of gestation. Maternal characteristics, HC expressed as multiple of median, and SPA were compared according to the mode of delivery. Logistic regression and receiver operating characteristics curve analyses were used to analyze the data.597 pregnancies were included in the study. Spontaneous

2017 Acta Obstetricia et Gynecologica Scandinavica

6. Fetal Head Circumference as a Predictor of Operative Delivery

Fetal Head Circumference as a Predictor of Operative Delivery Fetal Head Circumference as a Predictor of Operative Delivery - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. Fetal Head Circumference (...) Center Information provided by (Responsible Party): Hillel Yaffe Medical Center Study Details Study Description Go to Brief Summary: This study set out to investigate whether antenatal ultrasound evaluation of the Fetal Head Circumference (FHC) could potentially possess a predictive role in determining women at increased risk for operative delivery or cesarean section. Condition or disease Intervention/treatment Pregnancy Device: Ultrasound Detailed Description: When vaginal delivery poses a danger

2016 Clinical Trials

7. Fetal Head Circumference

Fetal Head Circumference Fetal Head 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 Head Circumference Fetal Head (...) Circumference Aka: Fetal Head Circumference II. Technique Same view as Biparietal Diameter Less shape dependent Use ellipse III. Equation = BPD + 3mm + OFD x 1.57 Images: Related links to external sites (from Bing) These images are a random sampling from a Bing search on the term "Fetal Head Circumference." Click on the image (or right click) to open the source website in a new browser window. Related Studies (from Trip Database) Related Topics in Radiology About FPnotebook.com is a rapid access, point

2018 FP Notebook

8. The Combined Use of Ultrasound and Fetal Magnetic Resonance Imaging for a Comprehensive Fetal Neurological Assessment in Fetal Congenital Cardiac Defects

. Proliferation disorders may be secondary to environmental insult. The initial concern is often revisited later in gestation by the presence of microcephaly (head circumference more than three SD below the mean). , The necessary assessment for gyral anomalies is best performed by MRI. In 2013, the first in utero use of the combined modalities of ultrasound scanning and MRI, the so‐called MRI ultrasound fusion, was reported. This proof of concept demonstrated the potential of the technique to enable real‐time (...) The Combined Use of Ultrasound and Fetal Magnetic Resonance Imaging for a Comprehensive Fetal Neurological Assessment in Fetal Congenital Cardiac Defects The Combined Use of Ultrasound and Fetal Magnetic Resonance Imaging for a Comprehensive Fetal Neurological Assessment in Fetal Congenital Cardiac Defects - Pasupathy - - BJOG: An International Journal of Obstetrics & Gynaecology - Wiley Online Library By continuing to browse this site, you agree to its use of cookies as described in our

2019 Royal College of Obstetricians and Gynaecologists

9. Comparison of the INTERGROWTH-21st standard and a new reference for head circumference at birth among newborns in Southern China. (PubMed)

Comparison of the INTERGROWTH-21st standard and a new reference for head circumference at birth among newborns in Southern China. Previous studies proposed that there were racial or ethnic disparities in fetal growth, challenging the use of international standards in specific populations. This study was to evaluate the validity of applying the INTERGROWTH-21st standard to a Chinese population for identifying abnormal head circumference (HC), in comparison with a newly generated local

2019 Pediatric Research

10. Maternal Night-Fasting Interval during Pregnancy Is Directly Associated with Neonatal Head Circumference and Adiposity in Girls but Not Boys. (PubMed)

Maternal Night-Fasting Interval during Pregnancy Is Directly Associated with Neonatal Head Circumference and Adiposity in Girls but Not Boys. Background: Synchrony between daily feeding-fasting signals and circadian rhythms has been shown to improve metabolic health in animals and adult humans, but the potential programming effect on fetal growth is unknown.Objective: We examined the associations of the maternal night-fasting interval during pregnancy with offspring birth size (...) and adiposity.Methods: This was a cross-sectional study of mother-offspring dyads within the Growing Up in Singapore Towards healthy Outcomes (GUSTO) cohort. For 384 mothers aged 30.8 ± 4.8 y (mean ± SD), the night-fasting interval at 26-28 wk of gestation was determined from a 3-d food diary based on the average of the fasting duration at night (1900-0659). Offspring birth weight, length, and head circumference were measured and converted to weight-for-gestational age (GA), length-for-GA, and head circumference

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2017 Journal of Nutrition

11. Prognosis of isolated congenital diaphragmatic hernia using lung-to-head circumference ratio: variability across centers in a national perinatal network. (PubMed)

Prognosis of isolated congenital diaphragmatic hernia using lung-to-head circumference ratio: variability across centers in a national perinatal network. Congenital diaphragmatic hernia (CDH) is a severe anomaly. The observed-to-expected lung-area-to-head-circumference ratio (o/e-LHR) has been shown to provide a useful prediction of subsequent survival of fetuses with CDH in referral centers with expertise and a large caseload. However, the accuracy of o/e-LHR measurements in general fetal (...) medicine units with less expertise is not well known. The aim of this study was to evaluate the capacity of o/e-LHR to provide a useful prediction of mortality of fetuses with CDH when the measurement is performed in fetal medicine units with different levels of expertise.Between January 2008 and November 2013, 305 live births with expectantly managed left-sided isolated CDH were recorded in the database of the French National Center for Rare Diseases (31 centers) and followed up after birth. Centers

2017 Ultrasound in Obstetrics and Gynecology

12. Amniotic Fluid Arginine from Gestational Weeks 13 to 15 Is a Predictor of Birth Weight, Length, and Head Circumference (PubMed)

Amniotic Fluid Arginine from Gestational Weeks 13 to 15 Is a Predictor of Birth Weight, Length, and Head Circumference Arginine is a constituent of proteins and a precursor for polyamines and nitric oxide, and is essential for placentation, angiogenesis, and growth. Maternal plasma arginine concentrations are found to be lower in pregnancies complicated by fetal growth restriction, and arginine supplementation in later pregnancy is reported to increase birth weight. We measured arginine (...) and the metabolites asymmetric dimethylarginine (ADMA) and symmetric dimethylarginine (SDMA) in the amniotic fluid obtained in pregnancy weeks 13 to 15 from 363 pregnancies with a documented normal outcome and related the concentrations to birth weight, length, and head circumference. Arginine was higher in the amniotic fluid from female (mean 40.8 (SD 10.6) µmol/L) compared to male fetuses (37.4 (SD 11.2) µmol/L, p = 0.003). Despite the gender difference, arginine in the amniotic fluid from gestational weeks 13

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2017 Nutrients

13. Microcephaly at birth - the accuracy of three references for fetal head circumference. How can we improve prediction? (PubMed)

Microcephaly at birth - the accuracy of three references for fetal head circumference. How can we improve prediction? To evaluate the prediction of microcephaly at birth (micB) using established and two new reference ranges for fetal head circumference (HC) and to assess whether integrating additional parameters can improve prediction.Microcephaly in utero was defined as a fetal HC 3SD below the mean for gestational age according to Jeanty et al.'s reference range. The records of cases (...) with fetal microcephaly (Fmic) were evaluated for medical history, imaging findings, biometry and postnatal examination/autopsy findings. Microcephaly was confirmed at birth (micB) by an occipitofrontal circumference (OFC) or a brain weight at autopsy 2SD below the mean for gestational age. The new INTERGROWTH-21(st) Project and a recent Israeli reference for fetal growth were applied for evaluation of the Fmic positive predictive value (PPV) for diagnosis of micB cases. Optimal HC cut-offs were

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2015 Ultrasound in Obstetrics and Gynecology

14. Fetal and Maternal Head Circumference During Pregnancy in Israeli Population

Fetal and Maternal Head Circumference During Pregnancy in Israeli Population Fetal and Maternal Head Circumference During Pregnancy in Israeli Population - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more (...) . Fetal and Maternal Head Circumference During Pregnancy in Israeli Population The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details. ClinicalTrials.gov Identifier: NCT02510170 Recruitment Status : Completed First Posted : July 29, 2015 Last Update Posted : February 14, 2017 Sponsor: Clalit Health Services Information provided by (Responsible

2015 Clinical Trials

15. Fetal head size and effect of manual perineal protection. (PubMed)

sizes of the fetal head. Quantity and extent of tension throughout the perineal body during vaginal delivery at the time when the suboccipito-bregmatic circumference passes between the fourchette and the lower margin of the pubis was determined.The order of effectiveness of different modifications of manual perineal protection was similar for all three sizes of fetal head. The reduction of perineal tension was most significant in delivery simulations with larger heads. The final position of fingers (...) Fetal head size and effect of manual perineal protection. The aim of this study was to evaluate whether a previously identified modification of Viennese method of perineal protection remains most effective for reduction of perineal tension in cases with substantially smaller or larger fetal heads.A previously designed finite element model was used to compare perineal tension of different modifications of the Viennese method of perineal protection to "hands-off" technique for three different

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2017 PLoS ONE

16. 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

17. A prospective study of fetal head growth, autistic traits and autism spectrum disorder (PubMed)

in two large population-based cohorts, including a sample of individuals with clinically diagnosed ASD. This study included 3,820 children from two longitudinal prenatal cohorts in The Netherlands and Australia, comprising 60 individuals with a confirmed diagnosis of ASD. Latent growth curve models were used to examine the relationship between fetal head circumference measured at three different time points and autistic traits measured in postnatal life using either the Social Responsiveness Scale (...) suggest that further research in this area is needed. Autism Res 2018, 11: 602-612. © 2018 The Authors Autism Research published by International Society for Autism Research and Wiley Periodicals, Inc.It is not known whether different patterns of postnatal brain growth in Autism Spectrum Disorder (ASD) also occurs prenatally. We examined fetal head growth and autistic symptoms in two large groups from The Netherlands and Australia. Lower initial prenatal head circumference was associated with autistic

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2018 Autism Research

18. Relationships between Head Circumference, Brain Volume and Cognition in Children with Prenatal Alcohol Exposure (PubMed)

Relationships between Head Circumference, Brain Volume and Cognition in Children with Prenatal Alcohol Exposure Head circumference is used together with other measures as a proxy for central nervous system damage in the diagnosis of fetal alcohol spectrum disorders, yet the relationship between head circumference and brain volume has not been investigated in this population. The objective of this study is to characterize the relationship between head circumference, brain volume and cognitive (...) performance in a large sample of children with prenatal alcohol exposure (n = 144) and healthy controls (n = 145), aged 5-19 years. All participants underwent magnetic resonance imaging to yield brain volumes and head circumference, normalized to control for age and sex. Mean head circumference, brain volume, and cognitive scores were significantly reduced in the prenatal alcohol exposure group relative to controls, albeit with considerable overlap between groups. Males with prenatal alcohol exposure had

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2016 PloS one

19. Head Circumference

Head Circumference Head 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 Head Circumference Head Circumference Aka: Head (...) Circumference , Microcephaly , Microcephalic Infant , Macrocephaly , Macrocephalic Infant II. Exam: Head Size Measurement Normal term newborn Head Circumference: 33 to 38 cm Technique Measuring tape around frontal forehead and occiput Take largest of several measurements III. Causes: Macrocephaly Familial with inheritance Other conditions (skeletal dysplasia) Sotos' Syndrome ( ) Alexander's Disease Canavan's Disease Gangliosidoses Glutaric aciduria Type I Type I IV. Causes: Microcephaly Familial Trisomy 13

2018 FP Notebook

20. Dietary change mediates relationships between stress during pregnancy and infant head circumference measures: the QF2011 study. (PubMed)

Dietary change mediates relationships between stress during pregnancy and infant head circumference measures: the QF2011 study. Prenatal maternal stress can adversely affect birth outcomes, likely reflecting effects of maternal stress hormones on fetal development. Maternal stress might also induce behavioural changes, such as dietary change, that might influence fetal development. Few studies have documented relationships between stress and dietary change in pregnancy. We analysed stress (...) and dietary change among 222 pregnant women exposed to the 2011 Queensland Floods. We assessed women's objective hardship, subjective distress and cognitive appraisal of the disaster; changes in their diets and their associations with infants' gestational age, weight, length and head circumference at birth, head circumference to birth length ratio (HC/BL) and ponderal index. Greater objective hardship was correlated with more negative dietary change, skipped meals and skipped multivitamins. There were

2016 Maternal & child nutrition

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