Comprehensive appraisal of pregnancy and neonatal outcomes in singleton pregnancies conceived via fertilization in the USA (2016-2021).

Objectives: We set out to compare adverse pregnancy and neonatal outcomes in singleton gestations conceived via fertilization (IVF) to those conceived spontaneously.

Methods: Retrospective, population-based cohort using the CDC Natality Live Birth database (2016-2021). All singleton births were stratified into two groups: those conceived via IVF, and those conceived spontaneously.

Maternal education and racial/ethnic disparities in nulliparous, term, singleton, vertex cesarean deliveries in the United States.

Background: Racial and ethnic disparities in obstetrical and neonatal outcomes are prevalent in the United States. Such racial or ethnic disparities have also been documented in the prevalence of cesarean deliveries.

Objective: We aimed to evaluate the impact of maternal education on racial or ethnic disparities in the prevalence of low-risk nulliparous, term, singleton, vertex cesarean deliveries in the United States.

Adverse outcomes associated with twin pregnancies conceived via fertilization.

Objective: To compare adverse pregnancy and neonatal outcomes in twin pregnancies conceived by fertilization (IVF) to those conceived spontaneously.

Methods: Retrospective analysis of the Centers for Disease Control and Prevention, Natality Live Birth database for the years 2016-2019. All twin live births were included and stratified into two groups: those from pregnancies conceived IVF and those from pregnancies conceived spontaneously.

Maternal race/ethnicity impacts the success rates of external cephalic version (ECV) in the United States.

Objectives: Racial and ethnic disparities in obstetrics are prevalent in the United States (US). We aimed to assess whether the success rate of external cephalic version (ECV) is affected by maternal race/ethnicity.

Methods: We conducted a retrospective analysis based on the CDC Natality Live Birth database for 2016-2018.

Sociodemographic Factors Associated With Gonorrhea and Chlamydia Infection in Pregnancy.

Background: We explored the impact of maternal sociodemographic parameters on the prevalence of chlamydial and gonorrheal infection in pregnancy in a large United States population of live births.

Methods: Retrospective analysis of the Centers for Disease Control and Prevention Natality Live Birth database (2016-2019). We compared pregnancies complicated by maternal infection with either gonorrhea or chlamydia to those without gonorrheal or chlamydial infection, separately.

The effect of interpregnancy interval on preterm birth and low birth weight in singleton pregnancies conceived without assistance or by infertility treatments.

Objective: To determine the association of interpregnancy interval on perinatal outcomes and whether this was influenced by mode of conception.

Design: Retrospective cohort.

Setting: Centers for Disease Control and Prevention's natality national database.

Maternal and Neonatal Complications in Teen Pregnancies: A Comprehensive Study of 661,062 Patients.

Purpose: To provide a comprehensive assessment of maternal and neonatal complications associated with teen pregnancies in the United States.

Methods: Retrospective analysis of the Centers for Disease Control and Prevention natality live births database (2016-2019). Singleton births to women younger than 35 years from the following racial/ethnic groups were included: non-Hispanic White, non-Hispanic Black, non-Hispanic Asian, and Hispanic.

Adverse perinatal outcomes of chlamydia infections: an ongoing challenge.

Objectives: is one of the most common sexually transmitted diseases in the world, but there are limited data on its impact on perinatal outcomes. Our objective was to investigate the association between chlamydia infections and adverse perinatal outcomes.

Methods: This is a retrospective analysis of the United States Centers for Disease Control and Prevention natality live birth database for the years 2016-2019.

Concerning trends in maternal risk factors in the United States: 1989-2018.

Background: Increased efforts have focused on reducing maternal morbidity and mortality in the United States (US). Hypertensive disorders of pregnancy, chronic hypertension, diabetes mellitus, very advanced maternal age, and grand multiparity are known contributors to various maternal morbidities, as well as maternal mortality. We aimed to evaluate the trends in these risk factors/complications among US pregnancies during the last three decades (1989-2018).

Race and ethnicity are among the predisposing factors for fetal malpresentation at term.

Objective: Fetal malpresentation complicates approximately 3% to 4% of all term births. It requires special considerations for delivery and exposes the mother and neonate to obstetrical interventions and potential adverse outcomes, such as umbilical cord prolapse, head entrapment and birth trauma, hypoxic ischemic encephalopathy, cesarean delivery, and cesarean delivery-related complications. We set out to explore the maternal and fetal factors associated with noncephalic malpresentation at term, with specific interest on the impact of maternal race and ethnicity on fetal malpresentation.

The use of propensity score matching to assess the benefit of the endometrial receptivity analysis in frozen embryo transfers.

Objective: To study the impact of the endometrial receptivity analysis (ERA) on live birth rates in frozen embryo transfer (FET) cycles.

Design: Retrospective cohort study.

Setting: A single, large, university-affiliated infertility practice.

Racial Disparity in Pregnancy Risks and Complications in the US: Temporal Changes during 2007-2018.

Maternal race and ethnicity have been associated with differences in pregnancy related morbidity and mortality. We aimed to evaluate the trends of several pregnancy risk factors/complications among different maternal racial/ethnic groups in the US between 2007 and 2018. Specifically, we used the Center for Disease Control and Prevention (CDC) natality files for these years to assess the trends of hypertensive disorders of pregnancy (HDP), chronic hypertension (CH), diabetes mellitus (DM), advanced maternal age (AMA) and grand multiparity (GM) among non-Hispanic Whites, non-Hispanic Blacks and Hispanics.

Performance of ultrasound for the visualization of the placental cord insertion.

Purpose Of Review: The purpose of this review was to review the literature on the performance of ultrasound for the visualization of the placental cord insertion (PCI) and for the diagnosis of abnormal placental cord insertion (APCI). APCI included both marginal cord insertion (MCI) and velamentous cord insertion (VCI) PCI.

Recent Findings: The overall rate of visualization of the PCI across all trimesters is 90.