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925 results for

Fetal Abdominal Circumference

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921. Small fetal abdominal circumference in the second trimester and subsequent low maternal plasma glucose after a glucose challenge test is associated with the delivery of a small-for-gestational age neonate. (Abstract)

Small fetal abdominal circumference in the second trimester and subsequent low maternal plasma glucose after a glucose challenge test is associated with the delivery of a small-for-gestational age neonate. To evaluate the predictive value of a combination of the 1 h 50-g glucose challenge test (GCT) and second-trimester ultrasound measurement of fetal abdominal circumference (AC) in identifying patients who will go on to deliver small-for-gestational age (SGA) neonates. The individual (...) predictive power of these tests has been indicated by previous studies, but this study examines the combined use of these indicators in predicting SGA.This retrospective cohort study included 576 consecutive patients with singleton gestations examined over a 3-year period. Patients' electronic medical records were abstracted to obtain the result of the GCT, the fetal AC measured by ultrasound examination between 18 and 22 weeks' gestation, and the birth weight. SGA and small AC were defined as birth

2008 Ultrasound in Obstetrics and Gynecology

922. Fetal biometry in ethnic Chinese: biparietal diameter, head circumference, abdominal circumference and femur length. (Abstract)

Fetal biometry in ethnic Chinese: biparietal diameter, head circumference, abdominal circumference and femur length. To construct new reference charts and equations for fetal biometry in the Hong Kong ethnic Chinese population, and to compare them with existing references from different populations.This was a prospective observational study involving 709 women with singleton pregnancies and confirmed gestational age. For the purposes of this study, each woman was scanned once only, between 12 (...) and 40 completed weeks of gestation, and the following fetal biometric measurements were recorded: biparietal diameter, head circumference, abdominal circumference and femur length. For each measurement, regression models were fitted to estimate the mean and SD at each gestational age. For comparison, the fetal biometric measurements of other populations at each gestation were expressed as Z-scores calculated with our reference equations. Results were presented graphically across the different

2008 Ultrasound in Obstetrics and Gynecology

923. Detecting fetal macrosomia with abdominal circumference alone. (Abstract)

Detecting fetal macrosomia with abdominal circumference alone. To determine if abdominal circumference (AC) can identify macrosomia (> or = 4,000 g) at or beyond 37 weeks.Prospectively, parturients at term admitted for delivery underwent sonographic mensuration of AC. A receiver-operating characteristic (ROC) curve was constructed to determine if AC can differentiate between normal (birth weight < 3,999 g) and macrosomia. A likelihood ratio was calculated. P < .05 was considered significant.The

2003 Journal of Reproductive Medicine

924. Amniotic fluid insulin levels and fetal abdominal circumference at time of amniocentesis in pregnancies with diabetes. (Abstract)

Amniotic fluid insulin levels and fetal abdominal circumference at time of amniocentesis in pregnancies with diabetes. Fetal hyperinsulinism is a strong predictor for excessive growth and fetopathy in pregnancies complicated by diabetes. We examined (i). the relationship between measurements of amniotic fluid insulin (AF insulin) and fetal abdominal circumference (AC) at the time of amniocentesis, and (ii). whether there is a threshold for fetal AC percentiles which can identify low vs. high (...) with fetal hyperinsulinism with an AF insulin >or= 16 microU/ml. All 10 cases of AF insulin >or= 16 microU/ml were identified with a NPV of 100% (74/74).Our data indicate that an AC >or= 75th percentile determined by a 3rd trimester ultrasound examination may discriminate between pregnancies at low vs. high risk for AF insulin >or= 16 microU/ml. This AF insulin concentration corresponds to a level of hyperinsulinism reported to be associated with considerable neonatal and long term morbidity.

2003 Diabetic Medicine

925. Evaluation of the measurement of the fetal fat layer, interventricular septum and abdominal circumference percentile in the prediction of macrosomia in pregnancies affected by gestational diabetes. (Abstract)

Evaluation of the measurement of the fetal fat layer, interventricular septum and abdominal circumference percentile in the prediction of macrosomia in pregnancies affected by gestational diabetes. To evaluate the measurement of the fetal abdominal fat layer (FFL), cardiac interventricular septum (IVS) and abdominal circumference (AC) percentile in the early third trimester as predictors of macrosomia at birth in the fetuses of women with gestational diabetes.Ninety patients attending (...) the hospital's special diabetic clinic were recruited prospectively. FFL and IVS were measured in addition to the routine biometry in the early third trimester. AC was measured routinely and AC percentile was determined from established antenatal charts. These measurements were then assessed as predictors of macrosomia.A fetal fat layer of >/=5 mm was the most useful predictor of macrosomia at term as assessed using the likelihood ratio. An AC >/=90th percentile, however, had a better sensitivity.The

2003 Ultrasound in Obstetrics and Gynecology

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