Erratum: Persistence of Neonatal Brachial Plexus Palsy among Nulliparous Versus Parous Women.

[This corrects the article DOI: 10.1055/s-0038-1677051.].

Prevalence and Risk Factors for New-Onset Hypertension in Labor.

Objective: Little is known about prevalence, risk factors, rate of treatment, or adverse outcomes associated with intrapartum hypertension. Thus, our objective was to describe these findings.

Study Design: This was a retrospective study of laboring term gestations with no history of hypertensive disorders.

Persistence of Neonatal Brachial Plexus Palsy among Nulliparous Versus Parous Women.

 Our objective was to compare persistence of neonatal brachial plexus palsy (NBPP) at 1 and 2 years in children of nulliparous versus parous women.  We conducted a retrospective cohort study of children diagnosed with NBPP followed at the University of Michigan, Interdisciplinary Brachial Plexus Program (UM-BPP). Self-reported demographics, delivery history, including birth weight (BW) < versus ≥ 9 lbs, and presence of shoulder dystocia (SD) were recorded.

Adherence to Consensus Guidelines for the Management of Labor Arrest Disorders in a Single Academic Tertiary Care Medical Center.

Objective: To evaluate the degree of adherence to the new the American College of Obstetricians and Gynecologists/Society for Maternal-Fetal Medicine guidelines in labor arrest management.

Study Design: A retrospective study of term, live, singleton deliveries with intrapartum primary cesarean delivery solely for failed induction of labor or labor arrest. Adherence was defined according to the 2014 criteria.

Liberal versus Indicated Maternal Oxygen Supplementation in Labor: A Before-and-After Trial.

Background: Although supplemental oxygen (SO) is routinely administered to laboring gravidas, benefits and harms are not well studied.

Objective: This article compares strategies of liberal versus indicated SO therapy during labor on cesarean delivery (CD) rate and neonatal outcomes.

Study Design: A controlled, before-and-after trial of laboring women with term, singleton pregnancies.

Twin transvaginal cervical length at 16-20 weeks and prediction of preterm birth.

Objective: Our objective was to determine if transvaginal cervical length at 16-20 weeks is predictive of preterm birth <34 weeks in a large cohort of twin pregnancies.

Study Design: This is a secondary analysis from a randomized trial of 17 alpha-hydroxyprogesterone caproate in twins to prevent preterm birth. Transvaginal cervical length was performed at 16-20-week gestation.

Chronic Hypertension in Pregnancy: Diagnosis, Management, and Outcomes.

Chronic hypertension affects up to 5% of pregnancies. Women can be stratified into low-risk or high-risk chronic hypertension based on baseline laboratory and diagnostic work-up, comorbid conditions, and outcomes in prior pregnancies. Pregnancies complicated by chronic hypertension are at risk for increased adverse maternal and neonatal outcomes including superimposed preeclampsia, fetal growth restriction, placental abruption, and perinatal death.

Neonatal brachial plexus palsy: obstetric factors associated with litigation.

Objective: Our objective was to compare characteristics between neonatal brachial plexus palsy (NBPP) cases that were litigated versus those that were not.

Study Design: From May to December 2012, the University of Michigan Interdisciplinary Brachial Plexus Program surveyed 51 consecutive families whose children were treated for NBPP. Obstetric data was self-reported.

Intravenous Acetaminophen versus Morphine for Analgesia in Labor: A Randomized Trial.

 To compare the effectiveness of intravenous acetaminophen with that of morphine in reducing pain in the first stage of labor.  An open-label, randomized controlled trial of women ≥ 34 weeks gestation in the first stage of labor, assigned to either intravenous acetaminophen or morphine. The primary outcome was improved analgesia measured by difference of visual analog scale (VAS) score at 120 minutes from baseline.

Persistence of Neonatal Brachial Plexus Palsy Associated with Maternally Reported Route of Delivery: Review of 387 Cases.

Objective The factors associated with persistent neonatal brachial plexus palsy (PNBPP) are unknown. Our objectives are to compare PNBPP at 1 and 2 years in children delivered via vaginal delivery (VD) versus cesarean delivery (CD) and in children delivered via VD with or without reported shoulder dystocia (SD). Study Design Retrospective cohort of children diagnosed with neonatal brachial plexus palsy (NBPP).

Pregnancy Outcomes in Women with 1-Hour Glucose Challenge Test ≥ 200 mg/dL.

Objective: Many protocols diagnose gestational diabetes mellitus (GDM) solely on a 1-hour glucose challenge test (GCT) ≥ 200 mg/dL. However, pregnancy outcomes in these women compared with women diagnosed with a 3-hour glucose tolerance test (GTT) has not been adequately evaluated. We hypothesize that a 1-hour GCT ≥ 200 mg/dL is associated with worse pregnancy outcomes as compared with a GCT 135 to 199 mg/dL with positive GTT.

Nulliparous Women in the Second Stage of Labor: Changes in Delivery Outcomes Between Two Cohorts From 2000 and 2011.

Objective: To evaluate changes over the past decade in the mode of delivery and second-stage duration in nulliparous women.

Methods: We conducted a retrospective cohort study at a single institution of nulliparous women reaching complete cervical dilation with singleton gestations 36 weeks or greater from January 1, 2011, to December 31, 2012, and compared these with a prior cohort prospectively collected from July 28, 2000, to February 28, 2003. We excluded pregnancies with prenatally diagnosed fetal anomalies.

Risk of adverse pregnancy outcomes in women with mild chronic hypertension before 20 weeks of gestation.

Objective: To evaluate whether blood pressure (BP) less than 140/90 mm Hg is associated with lower risk of adverse pregnancy outcomes in women with mild chronic hypertension.

Methods: This was a secondary analysis of women with chronic hypertension diagnosed before 20 weeks of gestation (either BP 140/90 mm Hg or greater on two occasions at least four hours apart or previously diagnosed and on antihypertensive therapy) enrolled in the Maternal-Fetal Medicine Units Network's High-risk Aspirin preeclampsia prevention trial. Outcomes including a primary composite (perinatal death, severe preeclampsia, placental abruption, and indicated preterm birth less than 35 weeks of gestation) and small for gestational age (SGA) were compared by study preenrollment BP analyzed as a categorical (less than 140/90, 140-150/90-99, or 151-159/100-109 mm Hg) and as a continuous variable.