Publications by authors named "Stuart Weiner"

Background: An obstetrician on standby assessed an 18-year-old primiparous captive gorilla with a term singleton fetus with a protracted labor course.

Case: After it was determined that an arrest of descent had occurred, a viable, 2,280 g male neonate was delivered through an operative vaginal birth with forceps assistance without major complications.

Conclusion: Given the numerous anatomic and biochemical similarities of humans and other great apes, it is possible that the high maternal mortality and stillbirth rates of gorillas could be reduced by using the same principles of obstetric management in a multidisciplinary fashion.

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To determine the frequency and distribution of chromosome abnormalities in women with early pregnancy failure (EPF) detected by cytogenetic testing on chorionic villus sampling. Retrospective observational cohort study of chromosomal analysis from transvaginal chorionic villus sampling (CVS) or reflex products of conception (POC) karyotype. CVS was offered as a training tool for Maternal Fetal Medicine fellows prior to manual vacuum aspiration for EPF 9-week gestation.

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Massive fetomaternal hemorrhage (FMH) can cause devastating pregnancy outcomes. Perinatal prognosis may be improved by intrauterine transfusion, but the appropriate management for these pregnancies remains unclear. To determine the recurrence risk of FMH after intrauterine transfusion, we performed a systematic review of all case reports/series of patients with proven FMH treated with intrauterine transfusion and who had subsequent follow-up of at least 72 h until delivery.

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Objectives: The aim of the paper was to assess nasal and oral amniotic fluid flows, with the use of color ultrasound and spectral Doppler, in normal fetuses.

Material And Methods: Forty-six fetuses of singleton gestations were studied prospectively. Spectrum imaging and maximal nasal fluid flow velocities were described.

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To evaluate whether the left myocardial performance index (MPI) changes in association with the fetal heart rate (FHR) tracing during labor. Women with term, singleton pregnancies, in labor were recruited to this prospective cohort study. Primary outcome: difference in left MPI between Category of fetal heart rate tracings.

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Objectives: To quantify the learning curve for a training program for Maternal Fetal Medicine (MFM) fellows in obtaining successful transvaginal chorionic villus sampling (CVS) results in women with early pregnancy failure (EPF).

Methods: Retrospective observational cohort study of transvaginal CVS and subsequent manual vacuum aspiration (MVA) performed by MFM fellows. CVS samples were sent for karyotype, and products of conception (POC) were sent if CVS sample did not yield a result.

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Objective: To examine trends in the incidence and method of invasive prenatal diagnosis due to the impact of sequential screening and noninvasive prenatal testing.

Methods: This is a retrospective review of all pregnancies that have undergone invasive prenatal diagnostic testing between June 2002 and June 2014, divided in 3 periods: period 1 from June 2002 to October 2006, period 2 from November 2006 to December 2011, and period 3 from January 2012 to June 2014. The main outcome measures were trends in the incidence and method of each procedure.

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Article Synopsis
  • The study aims to determine if three-dimensional (3D) sonography measurements of nuchal translucency (NT) during first trimester screening correlate with the traditional two-dimensional (2D) method.
  • A total of 366 patients were included, and various NT measurements were taken using both methods, revealing similar mean values and a significant correlation between the two approaches (p < 0.001).
  • The findings suggest that 3D sonography is a reliable alternative to 2D measurements, particularly useful in cases where obtaining optimal 2D measurements is challenging.
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Objective: This study aims to compare outcomes of antenatal testing in women who received testing between 40 weeks and 40+6 weeks versus those who received testing at ≥41 weeks.

Materials And Methods: This retrospective study included women without maternal comorbidities, who were referred for outpatient antenatal testing for gestational age ≥40 weeks. We compared women who received antenatal testing between 40 and 40+6 weeks (Group 1), to those who were only tested at ≥41 weeks (Group 2).

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Objective: The objective of this article is to evaluate the implementation and acceptability of a universal cervical length (CL) screening program for prediction and prevention of preterm birth (PTB).

Study Design: We performed a prospective observational study to evaluate the implementation and acceptability of a universal CL screening program. Between January 1, 2012, and December 31, 2012, women with singleton gestations, without a cerclage or prior spontaneous PTB, were offered transvaginal ultrasound (TVU) for CL between 18(0/7) and 23(6/7) weeks' gestation.

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Objectives: The goal of this study is to evaluate the success of a training program in chorionic villus sampling (CVS) of early pregnancy failure (EPF) for maternal-fetal medicine (MFM) fellows.

Methods: We conducted a retrospective review of a new training program in CVS for MFM fellows. Women with EPF up to 13 weeks estimated gestational age were offered inclusion in our program and counseled on alternatives.

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Study Objective: Patients in the third trimester of pregnancy presenting to the emergency department (ED) with hypotension are routinely placed in the left lateral tilt (LLT) position to relieve inferior vena cava (IVC) compression from the gravid uterus thereby increasing venous return. However, the relationship between patient position and proximal intrahepatic IVC filling has never assessed directly. This study set out to determine the effect of LLT position on intrahepatic IVC diameter in third trimester patients under real-time visualization with ultrasound.

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Objective: We describe the National Registry for Fetal Cardiac Pathology, a program under the Polish Ministry of Health aimed at improving the prenatal diagnosis, care, and management of congenital heart disease (CHD).

Methods: An online database was created to prospectively record diagnosis, prenatal care, delivery, follow-up, and still images and video for fetuses with CHD. A certification program in fetal cardiac ultrasound was also implemented.

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Clostridium perfringens is a rare cause of intrauterine infection. There have been five case reports concerning infection associated with invasive procedures. We report a woman who underwent a genetic amniocentesis due to her history of chronic granulomatous disease.

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Interruption of the aortic arch (IAA) is difficult to detect and diagnose in utero. However, prenatal diagnosis may be beneficial because IAA is rapidly fatal (median age, 10 d) if left uncorrected. Our objective was to review the direct and indirect echocardiographic markers associated with IAA, focusing on the importance of the three-vessel view (3VV), which is obtained during routine ultrasound examination to rule out malformations.

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This Protocol for Evaluating the Fetal and Neonatal Heart details the indications, views, and measurements to be obtained for both (1) the basic screening examination of the fetal heart (a necessary component of all complete fetal anatomy evaluations) and the specialty study called (2) echocardiography as applied to either the fetus or neonate, using 2D and Doppler ultrasound. While the purpose of the screening study is to detect or exclude the possibility of a cardiac abnormality, echocardiography attempts to diagnose the specific anatomic and physiologic disruption. Also emphasized is the value of a collaborative team approach to management of the fetus and its parents when a cardiovascular anomaly is present, in an effort to achieve a smoother transition from fetus to neonate across the continuum of perinatal care.

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Human biologic evolution involves a compromise between the physical adaptations for bipedalism with effects on birthing success and the much later increases in encephalization of our species. Much of what comes to define life history parameters like gestation length, and brain and birth weight in our species is best understood from this evolutionary perspective. Human populations have been dealing with the obstetric dilemma for many hundreds of thousands of years and modern biomedicine, using techniques like cesarean sections, has alleviated, but not eliminated, birthing as a "scar" of human evolution.

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Objective: The purpose of this study was to determine whether fetuses with a congenital heart defect demonstrate changes in cerebrovascular impedance.

Study Design: Fetal echocardiograms from January 2001 to May 2005 were reviewed. Cases had sonographically diagnosed congenital heart defects; control subjects were gestational age-matched fetuses with normal echocardiograms.

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Objective: To build a nomogram of normal fetal lung volumes and to assess the reproducibility of measurements using 3-dimensional ultrasonography.

Methods: Inclusion criteria were healthy women, singleton normal pregnancies, reliable dating, and 20 to 30 weeks' gestation. Exclusion criteria were discordance between clinical and ultrasonographic dating, patients lost to follow-up, and birth weight disorders.

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Objective: The purpose of this study was to determine the predictive accuracy of a test for neonatal death from pulmonary hypoplasia by measuring changes in fetal pulmonary artery blood flow on room air and during maternal hyperoxygenation.

Study Design: Women who were carrying fetuses with congenital anomalies that may cause pulmonary hypoplasia were offered participation in the study as part of a comprehensive fetal echocardiogram. Each fetus at > or =30 weeks of gestation underwent Doppler measurement of the blood flow pattern in the first branch of either the right or the left pulmonary artery before and again during exposure to maternal breathing of 60% oxygen by mask.

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