Search

Fetal growth nomograms were developed to screen for fetal growth restriction and guide clinical care to improve perinatal outcomes; however, existing literature remains inconclusive regarding which nomogram is the gold standard. This study aimed to compare the ability of 4 commonly used nomograms (Hadlock, International Fetal and Newborn Growth Consortium for the 21st Century, Eunice Kennedy Shriver National Institute of Child Health and Human Development–unified standard, and World Health Organization fetal growth charts) and 1 institution-specific reference to predict small for gestational age and poor neonatal outcomes. This was a retrospective cohort study of all nonanomalous singleton pregnancies undergoing ultrasound at ≥20 weeks of gestation between 2013 and 2020 and delivering at a single academic center. Using random selection methods, the study sample was restricted to 1 pregnancy per patient and 1 ultrasound per pregnancy completed at ≥22 weeks of gestation. Fetal biometry data were used to calculate estimated fetal weight and percentiles according to the aforementioned 5 nomograms. Maternal and neonatal data were extracted from electronic medical records. Logistic regression was used to estimate the association between estimated fetal weight of <10th and <3rd percentiles compared with estimated fetal weight of 10th to 90th percentile as the reference group for small for gestational age and the neonatal composite outcomes (perinatal mortality, hypoxic-ischemic encephalopathy or seizures, respiratory morbidity, intraventricular hemorrhage, necrotizing enterocolitis, hyperbilirubinemia or hypoglycemia requiring neonatal intensive care unit admission, and retinopathy of prematurity). Receiver operating characteristic curve contrast estimation (primary analysis) and test characteristics were calculated for all nomograms and the prediction of small for gestational age and the neonatal composite outcomes. We restricted the sample to ultrasounds performed within 28 days of delivery; moreover, similar analyses were completed to assess the prediction of small for gestational age and neonatal composite outcomes. Among 10,045 participants, the proportion of fetuses classified as <10th percentile varied across nomograms from 4.9% to 9.7%. Fetuses with an estimated fetal weight of <10th percentile had an increased risk of small for gestational age (odds ratio, 9.9 [95% confidence interval, 8.5–11.5] to 12.8 [95% confidence interval, 10.9–15.0]). In addition, the estimated fetal weight of <10th and <3rd percentile was associated with increased risk of the neonatal composite outcome (odds ratio, 2.4 [95% confidence interval, 2.0–2.8] to 3.5 [95% confidence interval, 2.9–4.3] and 5.7 [95% confidence interval, 4.5–7.2] to 8.8 [95% confidence interval, 6.6–11.8], respectively). The prediction of small for gestational age with an estimated fetal weight of <10th percentile had a positive likelihood ratio of 6.3 to 8.5 and an area under the curve of 0.62 to 0.67. Similarly, the prediction of the neonatal composite outcome with an estimated fetal weight of <10th percentile had a positive likelihood ratio of 2.1 to 3.1 and an area under the curve of 0.55 to 0.57. When analyses were restricted to ultrasound within 4 weeks of delivery, among fetuses with an estimated fetal weight of <10th percentile, the risk of small for gestational age increased across all nomograms (odds ratio, 16.7 [95% confidence interval, 12.6–22.3] to 25.1 [95% confidence interval, 17.0–37.0]), and prediction improved (positive likelihood ratio, 8.3–15.0; area under the curve, 0.69–0.75). Similarly, the risk of neonatal composite outcome increased (odds ratio, 3.2 [95% confidence interval, 2.4–4.2] to 5.2 [95% confidence interval, 3.8–7.2]), and prediction marginally improved (positive likelihood ratio, 2.4–4.1; area under the curve, 0.60–0.62). Importantly, the risk of both being small for gestational age and having the neonatal composite outcome further increased (odds ratio, 21.4 [95% confidence interval, 13.6–33.6] to 28.7 (95% confidence interval, 18.6–44.3]), and the prediction of concurrent small for gestational age and neonatal composite outcome greatly improved (positive likelihood ratio, 6.0–10.0; area under the curve, 0.80–0.83). In this large cohort, Hadlock, recent fetal growth nomograms, and a local population-derived fetal growth reference performed comparably in the prediction of small for gestational age and neonatal composite outcomes. [ABSTRACT FROM AUTHOR]

To assess the validity of Spanish versions of the Survey of Well-being of Young Children (SWYC) Milestones and the Ages & Stages Questionnaire, Third Edition (ASQ-3), and to document the rates of developmental delays in an urban cohort of children with Hispanic parents. Spanish-speaking families with a child 9 to 60 months of age (N = 991) were initially screened using Spanish translations of the SWYC Milestones and the ASQ-3. A stratified random sample of 494 of these children subsequently received standardized clinical assessment to confirm the presence of developmental delays. Reverse weighting corrected for the selection bias inherent in the stratification scheme. Fifty-five percent of toddlers (9 to 41 months of age) and 34.8% of preschoolers (42 to 60 months of age) scored in the moderately to severely delayed range, most frequently in language. Sensitivity and specificity for toddlers with severe delays associated with the SWYC were 0.69 and 0.64, respectively, and 0.55 and 0.75 for the ASQ-3. Sensitivity and specificity for preschoolers with severe delays associated with the SWYC were 0.87 and 0.58, respectively, and 0.71 and 0.86 for the ASQ-3. Although psychometric properties of the Spanish translated versions are not as strong as the English versions, the findings suggest that both the SWYC Milestones and ASQ-3 represent promising tools for identifying Hispanic children with developmental delays. The rate of delays were consistent with other studies showing a high percentage of Hispanic children with developmental delays, most frequently in language skills. [ABSTRACT FROM AUTHOR]

Purpose Patient-centered health care recognizes that adolescents and parents are stakeholders in adolescent health. We investigate adolescent and parent interest in receiving information about health topics and parent-teen communication from clinicians. Methods Ninety-one parent-adolescent dyads in one practice completed individual interviews. Items assessed levels of interest in receiving health and health communication information from the adolescent's doctor about 18 topics, including routine, mental health, sexual health, substance use, and injury prevention issues. Analyses tested differences between parents and adolescents, within-dyad correlations, and associations with adolescent gender and age. Results Most parents were female (84%). Adolescents were evenly divided by gender; 36 were aged 12–13 years, 35 were aged 14–15 years, and 20 were aged 16–17 years. Adolescent race reflected the practice population (60% black; 35% white). The vast majority of parents and adolescents reported moderate or high levels of interest in receiving information about all 18 health issues and information to increase parent-teen communication about these topics. Parents' interest in receiving information varied by adolescent age when the expected salience of topics varied by age (e.g., acne, driving safety), whereas adolescents reported similar interest regardless of age. Adolescent gender influenced parent and adolescent interest. Level of interest in receiving information from doctors within adolescent-parent pairs was not significantly correlated for one-half of topics. Conclusions Parents and adolescents want health care professionals to help them learn and talk about a wide range of adolescent health topics. Feasible primary care interventions that effectively improve parent-teen health communication, and specific adolescent health outcomes are needed. [ABSTRACT FROM AUTHOR]

Preterm birth is a syndrome with many causes and phenotypes. We propose a classification that is based on clinical phenotypes that are defined by ≥1 characteristics of the mother, the fetus, the placenta, the signs of parturition, and the pathway to delivery. Risk factors and mode of delivery are not included. There are 5 components in a preterm birth phenotype: (1) maternal conditions that are present before presentation for delivery, (2) fetal conditions that are present before presentation for delivery, (3) placental pathologic conditions, (4) signs of the initiation of parturition, and (5) the pathway to delivery. This system does not force any preterm birth into a predefined phenotype and allows all relevant conditions to become part of the phenotype. Needed data can be collected from the medical records to classify every preterm birth. The classification system will improve understanding of the cause and improve surveillance across populations. [ABSTRACT FROM AUTHOR]

A comprehensive classification system for preterm birth requires expanded gestational boundaries that recognize the early origins of preterm parturition and emphasize fetal maturity over fetal age. Exclusion of stillbirths, pregnancy terminations, and multifetal gestations prevents comprehensive consideration of the potential causes and presentations of preterm birth. Any step in parturition (cervical softening and ripening, decidual-membrane activation, and/or myometrial contractions) may initiate preterm parturition, and should be recorded for every preterm birth, as should the condition of the mother, fetus, newborn, and placenta, before a phenotype is assigned. [ABSTRACT FROM AUTHOR]

In 2009, the Global Alliance to Prevent Prematurity and Stillbirth Conference charged the authors to propose a new comprehensive, consistent, and uniform classification system for preterm birth. This first article reviews issues related to measurement of gestational age, clinical vs etiologic phenotypes, inclusion vs exclusion of multifetal and stillborn infants, and separation vs combination of pathways to preterm birth. The second article proposes answers to the questions raised here, and the third demonstrates how the proposed system might work in practice. [ABSTRACT FROM AUTHOR]

In the United States, there is a pronounced and persistent race/ethnic disparity in the rate of preterm birth. Even after decades of basic science research and public health initiatives this disparity remains relatively unchanged. Factors that underpin this disparity are elusive and likely, at least in part, derived from complex mechanisms originating from social inequities. In this article several promising areas of research are explored. Specifically, social context or neighborhood-level exposures, maternal nativity, infection/inflammation, and preconception health differentials are discussed in the context of increasing risk of preterm birth among race/ethnic minorities. [Copyright &y& Elsevier]

Summary: Bacterial vaginosis (BV) infections are common in women of reproductive age and are easily diagnosed and treatable. Aside from being an annoyance when symptoms of discharge, odor, and pruritus occur in the gravid female, BV infections increase risk of late miscarriage, preterm labor, preterm premature rupture of membranes, and, consequently, preterm delivery. Antepartum and puerperal issues such as chorioamnionitis and endometritis are increased in the context of maternal BV. Moreover, the morbidities and mortality of preterm delivery are consequently increased as a result of BV during pregnancy. Although the pathology associated with BV appears to result from inflammation, more investigation is needed in terms of designing guidelines for appropriate screening and treatment for the prevention of adverse outcomes. [Copyright &y& Elsevier]

Objectives.-To describe where women receiving prenatal care (PNC) at community-based health centers (CBHCs) go for infant primary care, and to assess reasons for and factors associated with leaving CBHCs and using other practices for infant care. Methods.-A prospective survey of women receiving PNC at CBHCs from February 2000 to February 2002 was conducted. In-person, prepartum, and postpartum surveys included questions about sociodemographic and health characteristics, and health services use. Results,-Among 1107 primarily low-income, African American mothers, 60% of women left CBHCs and used other practices for their infants due to dissatisfaction, inconvenience, referral to and perceived expertise at other sites, and insurance changes. Leaving CBHCs was associated with being white, Latina, US born, educated beyond high school, single, owning a car, using non-CBHC practices for prepregnancy care, and having child health insurance. Among those who left, 48% used hospital-based clinics (HBCs) and 52% used private practices (PPs). Mothers using HBCs, when compared to those using PPs, were more likely to be African American (AOR = 6.83: 95% CI: 3.82, 12.22) or Latina (AOR = 5.60: 95% CI: 2.79, 11.24), dissatisfied with their PNC (AOR = 2.02, 95% CI: 1.05, 3.89) and to leave CBHCs because of insurance changes (AOR = 2.27: 95% CI: 1.18, 4.39) and perceived pediatric expertise at other sites (AOR = 4.81: 95% CI: 2.53, 9.11). Conclusions-The majority of women in our study left CBHCs and used other sites for pediatric care. Higher education, having child health insurance, and car ownership were associated with leaving CBHCs. Among women who left, race/ethnicity and perceived pediatric expertise were major factors associated with using HBCs rather than PPs. [ABSTRACT FROM AUTHOR]

Examines the role of psychosocial and nutritional stress on poor pregnancy outcomes. Susceptibility of pregnant women to infection and pathological consequences of infection; Increase risk of preterm birth; Influence on the timing of delivery and the birth weight of the fetus.

Background: The American College of Obstetricians and Gynecologists recommends that pregnant patients receive expeditious treatment with first-line antihypertensive agents within 1 hour of confirmed severe hypertension to reduce the risk for maternal stroke. However, it is unknown how often this guideline is followed and what factors influence a patient's likelihood of receiving guideline-concordant care.Objective: We aimed to identify factors associated with receiving guideline-concordant treatment for an obstetrical hypertensive emergency.Study Design: We present a case-control study of all pregnant and postpartum patients who had persistent severe hypertension (≥2 systolic blood pressures ≥160 mm Hg or diastolic blood pressure ≥110 mm Hg, or both within 1 hour of each other) during their delivery hospitalization at a tertiary hospital from October 1, 2013, to August 31, 2020. Data were extracted from the hospital electronic medical records using standard definitions and billing and diagnosis codes. We defined receipt of the recommended treatment as administration of a first-line antihypertensive agent (intravenous labetalol, intravenous hydralazine, or immediate-release oral nifedipine) within 60 minutes of the first or second severe-range blood pressure measurement during their delivery hospitalization. Delayed treatment was defined as the administration of a first-line agent >60 minutes after the second elevated blood pressure measurement. Patients were considered untreated if a first-line agent was never administered. Maternal sociodemographic, clinical and pregnancy factors, and time and day of the week of the hypertensive emergency were compared among patients who received the recommended treatment, those who received delayed treatment, and those who were untreated. Bivariate analyses were performed, and multinomial and multivariable logistic regression models were used to adjust for potential confounders.Results: Of the 39,918 deliveries in the cohort, 1987 (5.0%) were complicated by severe, persistent obstetrical hypertension. Of these patients, 532 (26.8%) received the recommended treatment, 356 (17.9%) received delayed treatment, and 1099 (55.3%) did not receive any first-line antihypertensive therapy. The multinomial regression models that were used to compare these 3 groups indicated that patients who received the recommended treatment were more likely to be Black (adjusted odds ratio, 1.85; 95% confidence interval, 1.36-2.51), Hispanic (adjusted odds ratio, 1.77; 95% confidence interval, 1.28-2.52), or pregnant and at <37 weeks of gestation (adjusted odds ratio, 6.65; 95% confidence interval, 5.08-8.72). Treatment was less likely if the severe obstetrical hypertension emergency occurred overnight (7:00 PM to 6:59 AM) (adjusted odds ratio, 0.79; 95% confidence interval, 0.64-0.97) or during the postpartum period (adjusted odds ratio, 0.66; 95% confidence interval, 0.51-0.86).Conclusion: Approximately half of obstetrical patients with at least 2 documented severely elevated blood pressure measurements did not receive the recommended antihypertensive treatment. Of those who did receive treatment, about 40% had delayed treatment. Black and Hispanic race and preterm gestation were associated with an increased likelihood of receiving the recommended treatment when compared with White race and term pregnancies. Patients whose severe obstetrical hypertension emergency occurred overnight and those who were postpartum were less likely to receive any first-line antihypertensive treatment. Overall, patients without sociodemographic and clinical risk factors for severe obstetrical hypertension or other pregnancy complications were less likely to be treated. However, treatment improved significantly over time with the implementation of targeted quality measures and specific institutional policies based on the American College of Obstetricians and Gynecologists' latest severe obstetrical hypertension management guidelines. [ABSTRACT FROM AUTHOR]

Background: Hypertension was redefined in 2017 with lower diagnostic thresholds; elevated blood pressure is defined as systolic blood pressure of 120 to 129 mm Hg with diastolic blood pressure of <80 mm Hg and stage 1 hypertension as systolic blood pressure of 130 to 139 mm Hg or diastolic blood pressure of 80 to 89 mm Hg. These guidelines did not include pregnant women. There is limited information on stage 1 hypertension and pregnancy outcomes.Objective: This study aimed to determine whether elevated blood pressure and stage 1 hypertension as newly defined by the 2017 American College of Cardiology and the American Heart Association guidelines are associated with an increased risk of hypertensive disorders of pregnancy and other adverse maternal and neonatal outcomes.Study Design: In this retrospective cohort study, 18,801 women with singletons from 2013 to 2019 were categorized as normotensive, prehypertensive (elevated blood pressure), stage 1 hypertensive, or chronic hypertensive. Women with ≥2 systolic blood pressures of 120 to 129 mm Hg before 20 weeks' gestation were classified into the elevated blood pressure group. Women with ≥2 systolic blood pressures of 130 to 139 mm Hg or ≥2 diastolic blood pressures of 80 to 89 mm Hg before 20 weeks' gestation were assigned to the stage 1 hypertension group. Women were classified as chronic hypertensives if they had any of the following: ≥2 systolic blood pressure of ≥140 mm Hg or ≥2 diastolic blood pressure of ≥90 mm Hg before 20 weeks' gestation, a history of chronic hypertension, or antihypertensive medication use before 20 weeks' gestation. Women with pregestational diabetes, lupus, or <2 blood pressures before 20 weeks' gestation were excluded. The association of stage 1 hypertension with the risk of developing hypertensive disorders of pregnancy was estimated using multivariate logistic regression controlling for maternal sociodemographic characteristics, gestational weight gain by prepregnancy body mass index, parity, and aspirin use. Secondary outcomes included subgroups of hypertensive disorders (gestational hypertension, preeclampsia, eclampsia, and hemolysis, elevated liver enzymes, and low platelet count syndrome), gestational diabetes, placental abruption, intrauterine growth restriction, preterm birth, neonatal intensive care unit admission, stillbirth and neonatal death, and maternal intensive care unit admission. All outcomes were adjusted for potential confounders.Results: Of the 18,801 women, 13,478 (71.7%) were normotensive, 2659 (14.1%) had elevated blood pressure, 1384 (7.4%) were stage 1 hypertensive, and 1280 (6.8%) were chronic hypertensive. A dose-response relationship was observed: the risk of hypertensive disorders of pregnancy increased from 4.2% in normotensive women to 6.7% (adjusted odds ratio, 1.50; 95% confidence interval, 1.26-1.79) in women with elevated blood pressure, to 10.9% (adjusted odds ratio, 2.54; 95% confidence interval, 2.09-3.08) in women with stage 1 hypertension, and 28.4% (adjusted odds ratio, 7.14; 95% confidence interval, 6.06-8.40) in women with chronic hypertension. Compared with normotensive women, women with stage 1 hypertension had an increased risk of neonatal intensive care unit admissions (15.8% vs 13.0%; adjusted odds ratio, 1.21; 95% confidence interval, 1.03-1.42), preterm birth at <37 weeks' gestation (7.2% vs 5.2%; adjusted odds ratio, 1.45; 95% confidence interval, 1.16-1.81), and gestational diabetes (14.8% vs 6.8%; adjusted odds ratio, 2.68; 95% confidence interval, 2.27-3.17).Conclusion: Our study demonstrates that elevated blood pressure and stage 1 hypertension, using the 2017 American College of Cardiology and the American Heart Association guideline definition, are associated with increased maternal and neonatal risk. This group of women warrants further investigation to determine whether pregnancy management can be altered to reduce maternal and neonatal morbidity. [ABSTRACT FROM AUTHOR]