Social Vulnerability and Pregnancy Option Counseling in the Setting of Periviable Delivery.

: According to the American Academy of Pediatrics and the American College of Obstetricians and Gynecologists, pregnant people facing periviable delivery should be counseled on expected neonatal outcomes and available pregnancy options. The objective of this study is to evaluate if rates of neonatology consultation and pregnancy option counseling for those facing periviable delivery differ based on social vulnerability factors or Social Vulnerability Index (SVI). : This was a retrospective cohort study of patients who delivered at 22 0/7 weeks to 25 6/7 weeks of gestation at two academic medical centers with level III or IV neonatal intensive care units from 2019 to 2022.

Effect of Social Vulnerability Index on Betamethasone Timing in Patients at Risk of Preterm Birth.

Several social vulnerability index (SVI) components have been associated with adverse obstetrical outcomes and provider bias. The objective of this study is to assess whether betamethasone administration timing among patients at risk for preterm birth differs by social vulnerability index. A multicenter retrospective cohort study of pregnant people at a large academic healthcare system between January 2019 and January 2023.

Socioeconomic, Demographic, and Clinical Factors Associated with Postpartum Readmission.

To determine if socioeconomic, demographic, and clinical characteristics are associated with postpartum readmission. A retrospective cohort study evaluating all pregnant patients that delivered at seven hospitals within a large academic health system in New York between January 1, 2018 and March 1, 2020. Demographic information, medical comorbidities, and characteristics of antepartum, intrapartum, and postpartum care were compared between patients who were readmitted within 6 weeks postpartum and those who were not.

The association between uterine fibroid number and size and risk of preterm birth.

Background: While the association between uterine fibroids and preterm birth is well known, data regarding whether fibroid characteristics such as number and size modify such risk are limited.

Objective: To evaluate the association between fibroid number and size and risk of preterm birth and determine whether these characteristics impact the severity of preterm birth.

Study Design: Multicenter retrospective cross-sectional study including all patients with singleton gestations who had at least one prenatal ultrasound at 18 0/7 weeks of gestation or later and delivered within a large university health system from January 1, 2019 to December 31, 2022.

The impact of fresh versus frozen-thawed embryos on maternal serum analyte levels in IVF singleton and twin pregnancies.

Purpose: To determine whether embryo cryopreservation is associated with a difference in maternal serum analyte levels in singleton and twin pregnancies conceived via in vitro fertilization (IVF).

Methods: This was a retrospective cohort study of singleton and twin pregnancies conceived via IVF from a university health system from 01/2014 to 09/2019. Patients with available first and second trimester serum analyte data were included and analyzed separately.

Risk of Severe Maternal Morbidity Associated with Maternal Comorbidity Burden and Social Vulnerability.

Objective: We evaluated the associations of the obstetric comorbidity index (OB-CMI) and social vulnerability index (SVI) with severe maternal morbidity (SMM).

Study Design: Multicenter retrospective cohort study of all patients who delivered (gestational age > 20 weeks) within a university health system from January 1, 2019, to December 31, 2021. OB-CMI scores were assigned to patients using clinical documentation and diagnosis codes.

The optimal gestational age to deliver patients with chronic hypertension on antihypertensive therapy.

Objective: To identify the optimal gestational age of planned delivery in pregnancies complicated by chronic hypertension requiring antihypertensive medications that minimizes the risk of adverse perinatal events and maternal morbidity.

Methods: Retrospective cohort study of singleton pregnancies after 37 weeks of gestation complicated by chronic hypertension on antihypertensive medication, delivered at 7 hospitals within an academic health system in New York from 12/1/2015 to 9/3/2020. Two comparisons were made (1) planned deliveries at 37-37weeks versus expectant management, (2) planned deliveries at 38-38weeks versus expectant management.

Sociodemographic risk factors associated with patient follow-up after implementation of a CardioObstetrics program.

Given the association of adverse pregnancy outcomes with risk of developing cardiovascular disease and cardiac events later in life, our institution launched a CardioObstetrics (CardioOB) program aimed to provide long-term care for patients at risk. We performed a retrospective cohort study in order to investigate which patient characteristics were associated with CardioOB follow-up following the inception of the program. We identified several sociodemographic factors and pregnancy characteristics such as increased maternal age, non-English language preferred, married marital status, referral during the antepartum period, and discharged with antihypertensive medications after delivery associated with a higher likelihood of CardioOB follow-up.

Hypertensive disorders of pregnancy and severe acute respiratory syndrome coronavirus-2 infection.

Objectives: We aimed to determine whether severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in pregnancy is associated with an increased risk of hypertensive disorders of pregnancy (HDP).

Methods: A multicenter retrospective cohort study of all pregnant patients who had SARS-CoV-2 testing and delivered in a large health system between March 2020 and March 2021. Cases were stratified into two groups: patients who tested positive for SARS-CoV-2 during pregnancy vs.

Time interval to delivery in asymptomatic twin pregnancies with a short cervix at 23-28 weeks' gestation.

Objectives: To evaluate the risk and timing of spontaneous preterm birth (PTB) in asymptomatic twin pregnancies with a short cervical length (CL≤25 mm) at 23-28 weeks of gestation.

Methods: Multicenter retrospective cohort study of asymptomatic twin pregnancies with a short CL between 23 and 28 weeks' gestation within a university health system from 1/2012 to 12/2019. Cases were divided into 4 groups based on CL measurement (≤10 mm, 11-15 mm, 16-20 mm, and 21-25 mm).

Acceptance of coronavirus disease 2019 vaccination among postpartum women during delivery hospitalization.

Objective: The immediate postpartum period, during delivery hospitalization, represents a unique opportunity to offer coronavirus disease 2019 (COVID-19) vaccination to those who did not previously receive it. In this study, we evaluated patient characteristics associated with acceptance of vaccination in this group.

Methods: This retrospective cohort study evaluated all unvaccinated patients who were offered postpartum COVID-19 vaccination during delivery hospitalization between May 2021 and September 2021 at seven hospitals within a large integrated health system in New York.

The impact of preimplantation genetic testing on first- and second-trimester maternal serum analyte levels.

Objective: To determine whether preimplantation genetic testing (PGT) is associated with a change in maternal serum analyte levels in pregnancies conceived via fertilization (IVF).

Methods: Retrospective cohort of singleton and twin IVF pregnancies with available first- or second-trimester serum analyte data from 01/2014 to 09/2019. Multiple of the median (MoM) values for free β-human chorionic gonadotropin (β-hCG), pregnancy-associated plasma protein A (PAPP-A), alpha-fetoprotein (AFP), inhibin A, and unconjugated estriol, were compared between two groups: pregnancies conceived after transfer of PGT screened euploid embryos vs.

Obstetrical Outcomes After Implementation of Laborist Model During the COVID-19 Pandemic.

Objective: The COVID-19 pandemic prompted labor and delivery units to establish ways to decrease viral exposure to healthcare workers while continuing to deliver optimal patient care. A laborist model was implemented to improve safety at our tertiary care hospital in Long Island. The aim of the study is to determine whether implementation of a laborist model during the COVID-19 pandemic is associated with a change in the frequency of cesarean birth.

Nonadherence to treatment protocol for severe hypertension in pregnancy.

Background: Hypertensive disorders of pregnancy are one of the leading causes of maternal mortality and severe morbidity. The American College of Obstetricians and Gynecologists recommends treatment of persistent severe hypertension because this has been shown to improve overall outcomes. Treatment remains inconsistent and may be influenced by patient-level sociodemographic and clinical characteristics.

Severe maternal morbidity in pregnant patients with SARS-CoV-2 infection.

Background: Although the increased risk for severe illness and adverse pregnancy outcomes associated with SARS-CoV-2 infection during pregnancy is well described, the association of infection with severe maternal morbidity has not been well characterized.

Objective: This study aimed to evaluate the risk for severe maternal morbidity associated with SARS-CoV-2 infection during pregnancy.

Study Design: This was a multicenter retrospective cohort study of all pregnant patients who had a SARS-CoV-2 test done and who delivered in a New York health system between March 1, 2020 and March 1, 2021.

The Risk of Readmission after Early Postpartum Discharge during the COVID-19 Pandemic.

Objective: To determine whether early postpartum discharge during the coronavirus disease 2019 (COVID-19) pandemic was associated with a change in the odds of maternal postpartum readmissions.

Study Design: This is a retrospective analysis of uncomplicated postpartum low-risk women in seven obstetrical units within a large New York health system. We compared the rate of postpartum readmissions within 6 weeks of delivery between two groups: low-risk women who had early postpartum discharge as part of our protocol during the COVID-19 pandemic (April 1-June 15, 2020) and similar low-risk patients with routine postpartum discharge from the same study centers 1 year prior.

The impact of preimplantation genetic testing for aneuploidy on prenatal screening.

Objectives: To determine whether preimplantation genetic testing for aneuploidy (PGT-A) is associated with a reduced risk of abnormal conventional prenatal screening results in singleton pregnancies conceived using fertilization (IVF).

Methods: This was a retrospective cohort study of singleton IVF pregnancies conceived from a single tertiary care center between January 2014 and September 2019. Exclusion criteria included mosaic embryo transfers, vanishing twin pregnancies, and cycles with missing outcome data.

Preterm birth among women with and without severe acute respiratory syndrome coronavirus 2 infection.

Introduction: Studies directly comparing preterm birth rates in women with and without severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection are limited. Our objective was to determine whether preterm birth was affected by SARS-CoV-2 infection within a large integrated health system in New York with a universal testing protocol.

Material And Methods: This retrospective cohort study evaluated data from seven hospitals in New York City and Long Island between March 2020 and June 2021, incorporating both the first and second waves of the coronavirus disease 2019 (COVID-19) pandemic in the USA.

Cerclage in singleton gestations with an extremely short cervix (≤10 mm) and no history of spontaneous preterm birth.

Background: Data regarding the efficacy of a cervical cerclage for preterm birth prevention in patients with a short cervix and no history of spontaneous preterm birth are limited and inconclusive.

Objective: This study aimed to determine whether cervical cerclage is associated with an increased time interval to delivery in asymptomatic patients with singleton pregnancies with an extremely short cervical length (≤10 mm) and no history of spontaneous preterm birth.

Study Design: This was a multicenter retrospective cohort study of asymptomatic patients with singleton pregnancies with a cervical length of ≤10 mm between 16 and 23 weeks' gestation from January 2014 to December 2019.