A Case of Undiagnosed Placenta Increta Originating From a Demised Twin in the Second Trimester.

Placenta accreta spectrum (PAS) presents a significant risk of maternal morbidity and mortality, in large part due to the potential for massive hemorrhage at time of delivery. Recently, multiple gestations have been shown to be an independent risk factor for PAS, especially in the setting of other major risk factors. Importantly, antenatal detection of PAS in twin pregnancies has been shown to be suboptimal when compared to singleton pregnancies.

Deliveries Among Patients With Maternal Hepatitis C Virus Infection in the United States, 2000-2019.

Objective: To assess clinical characteristics, trends, and outcomes associated with the diagnosis of hepatitis C virus (HCV) infection during pregnancy.

Methods: This cross-sectional study analyzed delivery hospitalizations using the National Inpatient Sample. Temporal trends in both diagnosis of HCV infection and clinical characteristics associated with HCV infection were analyzed using joinpoint regression to estimate the average annual percent change (AAPC) with 95% CIs.

Postpartum Hemorrhage Trends and Outcomes in the United States, 2000-2019.

Objective: To analyze temporal trends in and risk factors for postpartum hemorrhage and to analyze the association of risk factors with postpartum hemorrhage-related interventions such as blood transfusion and peripartum hysterectomy.

Methods: This repeated cross-sectional study analyzed delivery hospitalizations from 2000 to 2019 in the National (Nationwide) Inpatient Sample. Trends analyses were conducted using joinpoint regression to estimate the average annual percent change (AAPC) with 95% CIs.

Associations of influenza, chronic comorbid conditions, and severe maternal morbidity among pregnant women in the United States with influenza at delivery hospitalization, 2000-2015.

Background: Chronic comorbid conditions increase the risk of influenza-related morbidity. Whether this holds for pregnant women who are at a high risk of complications from influenza remains to be determined.

Objective: This study aimed to determine whether chronic comorbid conditions are associated with an increased risk of severe maternal morbidity among pregnant women with an influenza diagnosis at delivery hospitalization.

Influenza Complicating Delivery Hospitalization and Its Association With Severe Maternal Morbidity in the United States, 2000-2018.

Objective: To characterize trends of an influenza diagnosis at delivery hospitalization and its association with severe maternal morbidity.

Methods: We conducted a repeated cross-sectional analysis of delivery hospitalizations using the Nationwide Inpatient Sample from 2000 to 2018. We assessed the association between an influenza diagnosis at delivery hospitalization and severe maternal morbidity excluding transfusion per Centers for Disease Control and Prevention criteria.

Risk for and disparities in critical care during delivery hospitalizations.

Background: Need for critical care during delivery hospitalizations may be an important maternal outcome measure, but it is not well characterized.

Objective: This study aimed to characterize the risks and disparities in critical care diagnoses and interventions during delivery hospitalizations.

Study Design: This serial cross-sectional study used the 2000-2014 National Inpatient Sample.

Outcomes of Neonates Born to Mothers With Severe Acute Respiratory Syndrome Coronavirus 2 Infection at a Large Medical Center in New York City.

Importance: Limited data on vertical and perinatal transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and health outcomes of neonates born to mothers with symptomatic or asymptomatic coronavirus disease 2019 (COVID-19) are available. Studies are needed to inform evidence-based infection prevention and control (IP&C) policies.

Objective: To describe the outcomes of neonates born to mothers with perinatal SARS-CoV-2 infection and the IP&C practices associated with these outcomes.

Effect of Delayed vs Immediate Umbilical Cord Clamping on Maternal Blood Loss in Term Cesarean Delivery: A Randomized Clinical Trial.

Importance: The American College of Obstetricians and Gynecologists recommends a delay in umbilical cord clamping in term neonates for at least 30 to 60 seconds after birth. Most literature supporting this practice is from low-risk vaginal deliveries. There are no published data specific to cesarean delivery.

Observation versus excision of lobular neoplasia on core needle biopsy of the breast.

Purpose: Controversy surrounds management of lobular neoplasia (LN), [atypical lobular hyperplasia (ALH) or lobular carcinoma in situ (LCIS)], diagnosed on core needle biopsy (CNB). Retrospective series of pure ALH and LCIS reported "upgrade" rate to DCIS or invasive cancer in 0-40%. Few reports document radiologic/pathologic correlation to exclude cases of discordance that are the likely source of most upgrades, and there is minimal data on outcomes with follow-up imaging and clinical surveillance.

Utility of surveillance MRI in women with a personal history of breast cancer.

Purpose: To determine the utility and rate of biopsy in women with a positive history of breast cancer screened with MRI.

Methods: Retrospective review of 491 breast MRI screening examinations in women with a personal history of breast cancer.

Results: In total, 107 biopsies were performed, an average of 0.