2023 American Heart Association and American Academy of Pediatrics Focused Update on Neonatal Resuscitation: An Update to the American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care.

This 2023 focused update to the neonatal resuscitation guidelines is based on 4 systematic reviews recently completed under the direction of the International Liaison Committee on Resuscitation Neonatal Life Support Task Force. Systematic reviewers and content experts from this task force performed comprehensive reviews of the scientific literature on umbilical cord management in preterm, late preterm, and term newborn infants, and the optimal devices and interfaces used for administering positive-pressure ventilation during resuscitation of newborn infants. These recommendations provide new guidance on the use of intact umbilical cord milking, device selection for administering positive-pressure ventilation, and an additional primary interface for administering positive-pressure ventilation.

2023 American Heart Association and American Academy of Pediatrics Focused Update on Neonatal Resuscitation: An Update to the American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care.

This 2023 focused update to the neonatal resuscitation guidelines is based on 4 systematic reviews recently completed under the direction of the International Liaison Committee on Resuscitation Neonatal Life Support Task Force. Systematic reviewers and content experts from this task force performed comprehensive reviews of the scientific literature on umbilical cord management in preterm, late preterm, and term newborn infants, and the optimal devices and interfaces used for administering positive-pressure ventilation during resuscitation of newborn infants. These recommendations provide new guidance on the use of intact umbilical cord milking, device selection for administering positive-pressure ventilation, and an additional primary interface for administering positive-pressure ventilation.

Assessing the predictive accuracy of the new vaginal birth after cesarean delivery calculator.

BACKGROUND: The vaginal birth after cesarean delivery calculator by the Maternal-Fetal Medicine Units Network was created to help providers counsel patients on predicted success of trial of labor after cesarean delivery using individualized risk assessment. The inclusion of race and ethnicity as predictors of vaginal birth after cesarean delivery in the 2007 calculator was problematic and potentially exacerbated racial disparities in obstetrics. Thus, a modified calculator without race and ethnicity was published in June 2021. OBJECTIVE: This study aimed to assess the accuracy of the 2007 and 2021 Maternal-Fetal Medicine Units vaginal birth after cesarean delivery calculators in predicting vaginal birth after cesarean delivery success among racial/ethnic minority patients receiving obstetrical care at a single urban tertiary medical center. STUDY DESIGN: All patients with 1 previous low transverse cesarean delivery who underwent a trial of labor at term with a vertex singleton gestation at an urban tertiary medical center from May 2015 to December 2018 were reviewed. Demographic and clinical data were collected retrospectively. Associations between maternal characteristics and success of vaginal birth after cesarean delivery were assessed using univariate and multivariable logistic regression. Predicted vaginal birth after cesarean delivery success rates using the Maternal-Fetal Medicine Units calculator were compared with actual outcomes (ie, successful trial of labor after cesarean delivery/vaginal birth after cesarean delivery vs repeated cesarean delivery) across each racial and ethnic group. RESULTS: A total of 910 patients met eligibility criteria and attempted trial of labor after cesarean delivery; 662 (73%) achieved vaginal birth after cesarean delivery. The rate of vaginal birth after cesarean delivery was highest among Asian women (81%) and lowest among Black women (61%). Univariate analyses demonstrated that success of vaginal birth after cesarean delivery was associated with maternal body mass index <30 kg/m2, history of vaginal delivery, and absence of indication of arrest of dilation or descent for previous cesarean delivery. Multivariate analyses evaluating predictors of vaginal birth after cesarean delivery reported in the 2021 calculator showed that maternal age, history of arrest disorder for previous cesarean delivery, and treated chronic hypertension were not significant in our patient population. Most patients who were of White, Asian, or "Other" race with a vaginal birth after cesarean delivery had a 2007 calculator-predicted probability of vaginal birth after cesarean delivery of >65%, whereas most Black and Hispanic patients with a vaginal birth after cesarean delivery were more likely to have a predicted probability of vaginal birth after cesarean delivery between 35% and 65% (P<.001). Most White, Asian, and Other-race patients with a repeated cesarean delivery had a 2007 calculator-predicted probability of vaginal birth after cesarean delivery of >65%, whereas most Black and Hispanic patients with a repeated cesarean delivery had a predicted probability of vaginal birth after cesarean delivery between 35% and 65%. Across all racial and ethnic groups, most patients with a vaginal birth after cesarean delivery had a 2021 calculator-predicted probability of vaginal birth after cesarean delivery of >65%. CONCLUSION: The inclusion of race/ethnicity in the 2007 Maternal-Fetal Medicine Units vaginal birth after cesarean delivery calculator underestimated predicted vaginal birth after cesarean delivery success rates among Black and Hispanic patients receiving obstetrical care at an urban tertiary medical center. Thus, we support the use of the 2021 vaginal birth after cesarean delivery calculator without race/ethnicity. Excluding race and ethnicity from vaginal birth after cesarean delivery counseling may be one way in which providers can ultimately contribute toward the reduction of racial and ethnic disparity in maternal morbidity in the United States. Further research is needed to understand the implications of treated chronic hypertension for the success of vaginal birth after cesarean delivery.

Survey of Obstetric Providers to Assess the Knowledge and Management of a Reported Penicillin Allergy in Pregnant Women.

OBJECTIVE: Penicillin allergy is the most commonly reported drug allergy in the United States; however, less than 10% of individuals labeled with a penicillin allergy are truly allergic. A reported penicillin allergy in pregnancy is associated with adverse maternal and perinatal outcomes. Despite recommendations for penicillin allergy testing in pregnancy, limited literature regarding obstetric providers' comfort and knowledge in addressing penicillin allergy and referral patterns exists. The objective of this study is to survey obstetric providers to assess their clinical practice patterns and baseline penicillin allergy knowledge, identify potential knowledge gaps in the management of pregnant patients with reported penicillin allergy, and measure the impact of an educational intervention on provider knowledge and practice patterns. STUDY DESIGN: An anonymous, electronic 23-question survey administered to all obstetric providers at a single academic medical center assessed obstetric provider characteristics, self-reported antibiotic practice patterns, and antibiotic allergy knowledge before (June 19, 2020) and after (September 16, 2020) a penicillin allergy educational intervention, which consisted of multiple small-group educational sessions and a culminating departmental educational session. Discrete knowledge comparison by provider type and experience level of pre- and postintervention was performed using chi-square tests. RESULTS: Of 277 obstetric providers invited, 124 (45%) responded preintervention and 62 (22%) postintervention. In total, 27% correctly identified the percentage of patients labeled penicillin allergic who would tolerate penicillins, 45% identified cephalosporin cross-reactivity, 59% understood penicillin allergies can wane, and 54% identified penicillin skin testing (PST) as a valid allergy verification tool. Among 48 respondents who attended educational sessions and responded postintervention, their knowledge of penicillin allergy waning (79% preeducation vs. 98% posteducation, p < 0.01) and PST as a valid tool for penicillin allergy verification (50% preeducation vs. 83% posteducation, p < 0.01) improved. CONCLUSION: Knowledge gaps related to penicillin allergy exist among obstetric providers. Educational initiatives may improve provider knowledge, help in the identification of patients requiring penicillin allergy evaluation, and reduce referral barriers. KEY POINTS: · Obstetric providers lack adequate knowledge of penicillin allergy.. · Educational interventions can improve discrete knowledge.. · Limited knowledge is a barrier to allergy referral for penicillin allergy delabeling..

Inequities in quality perinatal care in the United States during pregnancy and birth after cesarean.

OBJECTIVE: High-quality, respectful maternity care has been identified as an important birth process and outcome. However, there are very few studies about experiences of care during a pregnancy and birth after a prior cesarean in the U.S. We describe quantitative findings related to quality of maternity care from a mixed methods study examining the experience of considering or seeking a vaginal birth after cesarean (VBAC) in the U.S. METHODS: Individuals with a history of cesarean and recent (≤ 5 years) subsequent birth were recruited through social media groups to complete an online questionnaire that included sociodemographic information, birth history, and validated measures of respectful maternity care (Mothers on Respect Index; MORi) and autonomy in maternity care (Mother's Autonomy in Decision Making Scale; MADM). RESULTS: Participants (N = 1711) representing all 50 states completed the questionnaire; 87% planned a vaginal birth after cesarean. The most socially-disadvantaged participants (those less educated, living in a low-income household, with Medicaid insurance, and those participants who identified as a racial or ethnic minority) and participants who had an obstetrician as their primary provider, a male provider, and those who did not have a doula were significantly overrepresented in the group who reported lower quality maternity care. In regression analyses, individuals identified as Black, Indigenous, and People of Color (BIPOC) were less likely to experience autonomy and respect compared to white participants. Participants with a midwife provider were more than 3.5 times more likely to experience high quality maternity care compared to those with an obstetrician. CONCLUSION: Findings highlight inequities in the quality of maternal and newborn care received by birthing people with marginalized identities in the U.S. They also indicate the importance of increasing access to midwifery care as a strategy for reducing inequalities in care and associated poor outcomes.

Racial and ethnic differences in reproductive knowledge and awareness among women in the United States.

Objective: To evaluate if knowledge and awareness of concepts and concerns pertaining to reproductive health and fertility vary by race/ethnicity among reproductive-aged women in the United States. Methods: A 2013 cross-sectional web-based survey assessed reproductive health-related knowledge, awareness, and perceptions of 1,000 women (18-40 years). Multivariable logistic regression analyses, adjusting for age, education, income, marital status, employment, region, and pregnancy history, examined the association between race/ethnicity and subfertility-related risk factor awareness; knowledge of factors that may affect pregnancy susceptibility; and future fertility-related concerns. Results: Knowledge and awareness related to reproductive wellness and fertility differed by race/ethnicity in US women. Compared with Caucasians, Hispanic women were less likely to be aware of smoking-related harm to fertility (odds ratio [OR], 0.57; 95% confidence interval [CI], 0.38-0.86); African American women were more aware of the implications of sexually transmitted infections on fertility (OR, 2.13; 95% CI, 1.15-3.94); and Asian women demonstrated greater awareness of a possible relationship between dysmenorrhea and subfertility (OR, 2.05; 95% CI, 1.09-3.86). Asian women consider fertility socially taboo to talk about and a private affair that is difficult to discuss (OR, 2.63; 95% CI, 1.32-5.29 and OR, 1.99; 95% CI, 1.05-3.75, respectively), were more concerned about their future fertility (OR, 2.36; 95% CI, 1.24-4.52), and more likely to perceive a need for future fertility treatment (OR, 2.36; 95% CI, 1.18-4.71). Conclusion: Among reproductive-aged women in the United States, knowledge, awareness, and perceptions relating to reproductive health vary by race/ethnicity. Our findings suggest race/ethnicity as potential modulators of population perceptions regarding reproductive health and infertility. Clinical Trial Registration Number: NIH ZIA# HD008985.

Adherence to Definitions of Labor Arrest Influence on Primary Cesarean Delivery Rate.

OBJECTIVE: The cesarean delivery rate in the United States is 31.9%. One of the leading indications for primary cesarean delivery is labor arrest. A modern understanding of the labor curve supports more time prior to the diagnosis of labor arrest. We conducted this study to examine the impact of adherence to the modern criteria for labor arrest and failed induction on rates of primary cesarean delivery and to identify predictors of meeting these criteria. STUDY DESIGN: We analyzed rates of primary cesarean deliveries overall and primary cesarean deliveries occurring due to arrest of dilation, arrest of descent, and failed induction among the 17,877 live births at a large academic center from 2010 through 2013. Multiple logistic regression modeling identified predictors of meeting the new criteria for these indications based on guidelines published by the 2012 National Institute of Child Health and Human Development. RESULTS: The primary cesarean delivery rate decreased from 23.5 to 21.1% (p = 0.026) from 2010 to 2013. Primary cesarean delivery rate for labor arrest and failed induction decreased from 8.5 to 6.7% (p = 0.005). The percentage of primary cesarean deliveries meeting the 2012 criteria for labor arrest increased from 18.8 to 34.9% (p = 0.002), and the rate of primary cesarean deliveries due to arrest of dilation decreased from 5.1 to 3.4% (p < 0.0005). The percentage of cases meeting the 2012 criteria for arrest of descent increased from 57.8 to 71.0% (p < 0.007), while primary cesarean delivery rate due to arrest of descent remained relatively unchanged, 3.1 to 2.6% (p = 0.330). CONCLUSION: A decrease in the primary cesarean rate was attributable to a decrease in cesarean for arrest of dilation in the setting of a significant increase in meeting the 2012 criteria for arrest of dilation. At the end of the study period, 65.2% of cesareans still did not meet the criteria for arrest of dilation. Greater rates of adherence to these guidelines may yield further reductions in the cesarean rate. KEY POINTS: · Primary cesarean delivery for labor arrest was decreased.. · Meeting criteria for labor arrest increased.. · A hospitalist provider increased odds of meeting criteria..

Severe maternal morbidity and mortality during delivery hospitalization of class I, II, III, and super obese women.

BACKGROUND: Previous studies show that obesity predisposes patients to higher risks of adverse pregnancy outcomes. Data on the relationship between increasing degrees of obesity and risks of severe maternal morbidity, including mortality, are limited. OBJECTIVE: We examined the association of increasing classes of obesity, especially super obesity, with the risk of severe maternal morbidity and mortality at the time of delivery hospitalization. STUDY DESIGN: Using New York City linked birth certificates and hospital discharge data, we conducted a retrospective cohort study. This study identified delivery hospitalizations for singleton, live births in 2008-2012. Women were classified as having obesity (class I, II, III, or super obesity), as opposed to normal weight or overweight, based on prepregnancy body mass index. Cases of severe maternal morbidity were identified based on International Classification of Diseases, Ninth Revision diagnosis and procedure codes according to Centers for Disease Control and Prevention criteria. Multivariable logistic regression was used to evaluate the association between obesity classes and severe maternal morbidity, adjusting for maternal sociodemographic characteristics. RESULTS: During 2008-2012, there were 570,997 live singleton births with available information on prepregnancy body mass index that met all inclusion criteria. After adjusting for maternal characteristics, women with class II (adjusted odds ratio, 1.14; 95% confidence interval, 1.05-1.23), class III (adjusted odds ratio, 1.34; 95% confidence interval, 1.21-1.49), and super obesity (adjusted odds ratio, 1.99; 95% confidence interval, 1.57-2.54) were all significantly more likely to have severe maternal morbidity than normal and overweight women. Super obesity was associated with specific severe maternal morbidity indicators, including renal failure, air and thrombotic embolism, blood transfusion, heart failure, and the need for mechanical ventilation. CONCLUSION: There is a significant dose-response relationship between increasing obesity class and the risk of severe maternal morbidity at delivery hospitalization. The risks of severe maternal morbidity are highest for women with super obesity. Given that this is a modifiable risk factor, women with prepregnancy obesity should be counseled on the specific risks associated with pregnancy before conception to optimize their pregnancy outcomes.

Implementing an Evidence-Based Bundle to Reduce Early Labor Admissions and Increase Adherence to Labor Arrest Guidelines: A Quality Improvement Initiative.

BACKGROUND: At many hospitals, the cesarean birth rate among nulliparous term singleton vertex (NTSV) pregnancies is higher than World Health Organization benchmarks. Reducing NTSV cesarean birth is a national quality imperative. The aim of this initiative was to implement an evidence-based bundle at an urban community teaching hospital in at least 50% of labors in 60 days in order to reduce early labor admissions and increase adherence to evidence-based labor management guidelines shown to decrease cesarean birth. METHODS: Chart audits, root-cause analysis, and staff engagement informed bundle development. An early labor triage guide, labor walking path, partograph, and pre-cesarean checklist were implemented to drive change. Four Rapid Cycle Plan Do Study Act cycles were conducted over 8 weeks. RESULTS: The bundle was implemented in 58% of births. The bundle reduced early labor admissions labor from 41% to 25%. Team knowledge reflecting current guidelines in labor management increased 35% and 100% of cesareans for labor arrest met criteria. Patient satisfaction scores exceeded 98%. CONCLUSIONS: Implementing an evidenced-based bundle was effective in reducing early labor admissions and increasing utilization of and adherence to labor management guidelines. IMPLICATIONS FOR NURSING: Implementation of evidence-based bundles has the potential to achieve meaningful quality improvements in maternity care.

Reliability and validity of Midwifery - Obstetrics Collaboration (MOC) scale: A tool to improve collaborative practice.

OBJECTIVE: In recent decades, there has been a call to foster effective collaborative models of practice between midwives and obstetricians/gynecologists (OB/GYNs) in the United States in order to improve clinician satisfaction and outcomes for childbearing women. Currently, there is no existing validated scale that measures the collaboration between obstetricians and midwives on labor and birth units. We sought to develop and validate a Midwifery- Obstetrics Collaboration (MOC) Scale that measures obstetricians' attitudes towards collaboration between obstetricians and midwives on labor and birth units. DESIGN: Validation study. The items in the questionnaire to be validated were developed de novo by the authors, based on their experiences and expertise in collaborative practice as well as by incorporating key principles of effective collaborative practice documented in the literature. The questionnaire was then piloted among 13 content experts. SETTING: Anonymous online survey conducted in the United States. PARTICIPANTS: We validated the questionnaire among 471 obstetricians in the United States from Sept 2019 to March 2020. The respondents included general obstetrician and gynecologists (OB/GYN) attendings, OB/GYN hospitalists, maternal fetal medicine (MFM) fellows and MFM attendings who practice on a labor and birth unit in the United States. MEASUREMENTS AND FINDINGS: We performed reliability analysis of the a priori items. We measured concurrent validity with an existing scale that measures inter-professional collaboration between nurses and physicians. We also correlated our scale with concerns for liability when working in a collaborative practice with midwives. Lastly, we measured discriminant validity with a single item burn out scale. The novel MOC Scale demonstrated construct and concurrent validity, and high inter-item reliability (a=0.93). The MOC Scale correlated with concerns about liability (r=0.63, p <0.001) but was not associated with burnout indicating the uniqueness of the new construct. KEY CONCLUSIONS: The MOC Scale is validated to assess collaboration between obstetricians and midwives on labor and birth units from an obstetrician's perspective IMPLICATIONS FOR PRACTICE: The MOC Scale can be used as a tool in clinical practice, to assess and foster effective collaboration between obstetricians and midwives from an obstetricians' perspective especially when used in conjunction with other tools that take into the account the perspectives of midwives and childbearing women.

"I had to fight for my VBAC": A mixed methods exploration of women's experiences of pregnancy and vaginal birth after cesarean in the United States.

BACKGROUND: Vaginal birth after cesarean (VBAC) is safe, cost-effective, and beneficial. Despite professional recommendations supporting VBAC and high success rates, VBAC rates in the United States (US) have remained below 15% since 2002. Very little has been written about access to VBAC in the United States from the perspectives of birthing people. We describe findings from a mixed methods study examining experiences seeking a VBAC in the United States. METHODS: Individuals with a history of cesarean and recent subsequent birth were recruited through social media groups. Using an online questionnaire, we collected sociodemographic and birth history information, qualitative accounts of participants' experiences, and scores on the Mothers on Respect Index, the Mothers Autonomy in Decision Making Scale, and the Generalized Self-Efficacy Scale. RESULTS: Participants (N = 1711) representing all 50 states completed the questionnaire; 1151 provided qualitative data. Participants who planned a VBAC reported significantly greater decision-making autonomy and respectful treatment in their maternity care compared with those who did not. The qualitative theme: "I had to fight for my VBAC" describes participants' accounts of navigating obstacles to VBAC, including finding a supportive provider and traveling long distances to locate a clinician and/or hospital willing to provide care. Participants cited support from providers, doulas, and peers as critical to their ability to acquire the requisite knowledge and power to effectively self-advocate. DISCUSSION: Findings highlight the difficulties individuals face accessing VBAC within the context of a complex health system and help to explain why rates of attempted VBAC remain low.

Hospital variation in admissions to neonatal intensive care units by diagnosis severity and category.

OBJECTIVE: To examine interhospital variation in admissions to neonatal intensive care units (NICU) and reasons for the variation. STUDY DESIGN: 2010-2012 linked birth certificate and hospital discharge data from 35 hospitals in California on live births at 35-42 weeks gestation and ≥1500 g birth weight were used. Hospital variation in NICU admission rates was assessed by coefficient of variation. Patient/hospital characteristics associated with NICU admissions were identified by multivariable regression. RESULTS: Among 276,489 newborns, 6.3% were admitted to NICU with 34.5% of them having mild diagnoses. There was high interhospital variation in overall risk-adjusted rate of NICU admission (coefficient of variation = 26.2) and NICU admission rates for mild diagnoses (coefficient of variation: 46.4-74.0), but lower variation for moderate/severe diagnoses (coefficient of variation: 8.8-14.1). Births at hospitals with more NICU beds had a higher likelihood of NICU admission. CONCLUSION: Interhospital variation in NICU admissions is mostly driven by admissions for mild diagnoses, suggesting potential overuse.

Trial of Labor After Two Prior Cesarean Deliveries: Patient and Hospital Characteristics and Birth Outcomes.

OBJECTIVE: Trial of labor after cesarean delivery has been mostly studied in the setting of one prior cesarean delivery; controversy remains regarding the risks and benefits of trial of labor for women with two prior cesarean deliveries. This study aimed to examine utilization, success rate, and maternal and neonatal outcomes of trial of labor in this population. METHODS: Using linked hospital discharge and birth certificate data, we retrospectively analyzed a cohort of mothers with nonanomalous, term, singleton live births in California between 2010-2012 and had two prior cesarean deliveries and no clear contraindications for trial of labor. We measured whether they attempted labor and, if so, whether they delivered vaginally. Association of patient and hospital characteristics with the likelihood of attempting labor and successful vaginal birth was examined using multivariable regressions. We compared composite severe maternal morbidities and composite severe newborn complications in those who underwent trial of labor as opposed to planned cesarean delivery using a propensity score-matching approach. RESULTS: Among 42,771 women who met sample eligibility criteria, 1,228 (2.9%) attempted labor, of whom 484 (39.4%) delivered vaginally. There was no significant difference in the risk of composite severe maternal morbidities, but there was a modest increase in the risk of composite severe newborn complications among women who attempted labor compared with those who did not (2.0% vs 1.4%, P=.04). After accounting for differences in patient and hospital characteristics, propensity score-matched analysis showed no significant association between trial of labor and the risk of composite severe maternal morbidities (odds ratio [OR] 1.16, 95% CI 0.70-1.91), but trial of labor was associated with a higher risk for the composite of severe newborn complications (OR 1.78, 95% CI 1.04-3.04). CONCLUSION: Among women with two prior cesarean deliveries, trial of labor was rarely attempted and was successful in 39.4% of attempts. Trial of labor in this population was associated with a modest increase in severe neonatal morbidity.

Association of Oxytocin Rest During Labor Induction of Nulliparous Women With Mode of Delivery.

OBJECTIVE: To evaluate the association between temporary cessation in oxytocin infusion (oxytocin rest) and mode of delivery in women undergoing induction of labor with a protracted latent phase. METHODS: We conducted a retrospective cohort analysis of nulliparous women with term, vertex, singleton gestations who were undergoing induction of labor with continuous oxytocin infusion at a large academic medical center. Episodes of oxytocin rest were identified among patients who were exposed to 8 hours of continuous oxytocin yet remained in latent labor (ie, protracted latent labor). Multivariable logistic regression analysis was performed to estimate the association between duration of oxytocin rest and mode of delivery while adjusting for duration of latent phase, maternal age, gestational age, body mass index, and indications for induction and oxytocin cessation. Maternal and neonatal morbidities were also compared among patients with different durations of oxytocin rest. RESULTS: From January 2012 to December 2016, 1,193 patients met eligibility criteria. Among these patients, 267 patients (22.4%) underwent an oxytocin rest that lasted at least 1 hour. After adjusting for potential confounders, the odds ratios of cesarean delivery for patients with oxytocin rest compared with those with no oxytocin rest were as follows: 1.12 (95% CI 0.79-1.58) for less than 1 hour, 0.78 (95% CI 0.48-1.27) for 1-2 hours, 0.60 (95% CI 0.35-1.04) for 2-8 hours, and 0.43 (95% CI 0.24-0.79) for 8 hours or more. We did not detect an association between oxytocin rest of more than 8 hours and a composite of maternal or neonatal morbidities. CONCLUSION: An oxytocin rest of at least 8 hours is a clinical tool that may reduce the risk of cesarean delivery among women with protracted latent labor without significantly increasing maternal or neonatal morbidity.

Utility of Birth Certificate Data for Evaluating Hospital Variation in Admissions to NICUs.

OBJECTIVES: Efforts to study potential overuse of NICU admissions and hospital variation in practice are often hindered by a lack of an appropriate data source. We examined the concordance of hospital-level NICU admission rates between birth certificate data and California Children's Services (CCS) data to inform the utility of birth certificate data in studying hospital variation in NICU admissions. METHODS: We analyzed birth certificate data from California in 2012 and hospital-specific summary data from CCS regarding NICU admissions. NICU admission rates were calculated for both data sets while using CCS data as the gold standard. The difference between birth certificate-based and CCS-based NICU admission rates was assessed by using the Wilcoxon signed rank test, and concordance between the 2 rates was evaluated by using Lin's concordance correlation coefficient and Kendall's W concordance coefficient. RESULTS: Among a total of 103 hospitals that were linked between the 2 data sets, birth certificate data generally underreported NICU admission rates compared with CCS data (median = 7.72% vs 11.51%; P < .001). However, in a subset of 35 hospitals where the difference in NICU admission rates between the 2 data sets was small, the birth certificate-based NICU admission rate showed good concordance with the rate from CCS data (Lin's concordance correlation coefficient = 0.91; 95% confidence interval: 0.84-0.95; Kendall's W concordance coefficient = 0.99; P < .001). Hospitals with good-concordance data did not differ from other hospitals in the institutional characteristics assessed. CONCLUSIONS: For a selected subset of hospitals, birth certificate data may offer a reasonable means to investigate hospital variation in NICU admissions.

Low-Interventional Approaches to Intrapartum Care: Hospital Variation in Practice and Associated Factors.

INTRODUCTION: Despite evidence supporting the safety of low-interventional approaches to intrapartum care, defined by the American College of Obstetricians and Gynecologists as "practices that facilitate a physiologic labor process and minimize intervention," little is known about how frequently such practices are utilized. We examined hospital use of low-interventional practices, as well as variation in utilization across hospitals. METHODS: Data came from 185 California hospitals completing a survey of intrapartum care, including 9 questions indicating use of low- versus high-interventional practices (eg, use of intermittent auscultation, nonpharmacologic pain relief, and admission of women in latent labor). We performed a group-based latent class analysis to identify distinct groups of hospitals exhibiting different levels of utilization on these 9 measures. Multivariable logistic regression identified institutional characteristics associated with a hospital's likelihood of using low-interventional practices. Procedure rates and patient outcomes were compared between the hospital groups using bivariate analysis. RESULTS: We identified 2 distinct groups of hospitals that tended to use low-interventional (n = 44, 23.8%) and high-interventional (n = 141, 76.2%) practices, respectively. Hospitals more likely to use low-interventional practices included those with midwife-led or physician-midwife collaborative labor management (adjusted odds ratio [aOR], 7.52; 95% CI, 2.53-22.37; P < .001) and those in rural locations (aOR, 3.73; 95% CI, 1.03-13.60; P = .04). Hospitals with a higher proportion of women covered by Medicaid or other safety-net programs were less likely to use low-interventional practices (aOR, 0.96; 95% CI, 0.93-0.99; P = .004), as were hospitals in counties with higher medical liability insurance premiums (aOR, 0.53; 95% CI, 0.33-0.85; P = .008). Hospitals in the low-intervention group had comparable rates of severe maternal and newborn morbidities but lower rates of cesarean birth and episiotomy compared with hospitals in the high-intervention group. DISCUSSION: Only one-quarter of hospitals used low-interventional practices. Attention to hospital culture of care, incorporating the midwifery model of care, and addressing medical-legal concerns may help promote utilization of low-interventional intrapartum practices.

Evaluating the Impact of a New Smartphone Texting Tool on Patient Care in Obstetrics, an Emergent Healthcare Setting.

BACKGROUND: Hospitals across the country are investing millions of dollars to adopt new Health Insurance Portability and Accountability Act (HIPAA)-compliant secure text messaging systems. However, in nearly all cases, these implementations are occurring without evaluation of their impact on patient care. OBJECTIVE: To evaluate perceived impact on patient care and workflow of new text messaging system implemented in obstetrics at Yale-New Haven Hospital and to inform guidelines for future implementations in emergent settings. METHODS: A new HIPAA-compliant texting system was implemented in obstetrics in 2016. Before implementation of the new system, residents and nurses were surveyed on perceived effect of communication system (pagers with text receiving, service mobile phones, personal cell phones) on clinical workflow and patient care using 5-point Likert scale and open-ended questions. Following roll-out (1 and 6 months), both teams were surveyed with same questions. Results were compared using Wilcoxon-Mann-Whitney test (0-1 months and then 0-6 months). Open-ended question results were qualitatively compared for recurrent unifying themes. RESULTS: In both nursing and resident domains, 1 month after implementation, the new communication system was perceived to significantly improve efficiency and patient care across all metrics. After 6 months, this effect decayed in nearly all categories (including efficiency, real-time communication, and knowledge of covering provider). The exception was nurse's knowledge of which resident to contact and resident's timely evaluation of patient, for which we observed sustained improvements. System shortcomings identified included interrupted connection (i.e., dropped calls), dysfunctional and inaccurate alert system, and unclear identification of the covering provider. CONCLUSION: A new text-messaging-based communication system may improve efficiency and patient care in emergent settings, but system shortcomings can substantially erode potential benefits over time. We recommend implementers evaluate new systems for a set of specific functional requirements to increase probability of sustained improvement and decrease risk of poor patient outcomes.

Gestational Weight Gain and Severe Maternal Morbidity at Delivery Hospitalization.

OBJECTIVE: To examine whether women who varied from recommended gestational weight gain guidelines by the Institute of Medicine (IOM, now known as the National Academy of Medicine) were at increased risk of severe maternal morbidity during delivery hospitalization compared with those whose weight gain remained within guidelines. METHODS: We conducted a retrospective cohort study using linked 2008-2012 New York City discharge and birth certificate data sets. Cases of severe maternal morbidity were identified using International Classification of Diseases, 9th Revision, Clinical Modification codes based on the Centers for Disease Control and Prevention criteria, which consists of 21 indicators of possible life-threatening diagnoses, life-saving procedures, or death. Multivariable logistic regression was used to evaluate the association between gestational weight gain categories based on prepregnancy body mass index (BMI) and severe maternal morbidity adjusting for maternal demographics and socioeconomic status. The analysis was stratified by prepregnancy BMI categories. RESULTS: During 2008-2012, there were 515,148 term singleton live births in New York City with prepregnancy weight and gestational weight gain information. In 24.8%, 35.1%, 32.1%, and 8.0% of these births, women gained below, within, 1-19 lbs above, and 20 lbs or more above the IOM guidelines, respectively. After adjusting for maternal demographic and socioeconomic characteristics, women who had gestational weight gain 1-19 lbs above (adjusted odds ratio [AOR] 1.08, 95% CI 1.02-1.13) or 20 lbs or more above the IOM recommendations (AOR 1.21, 95% CI 1.12-1.31) had higher odds of overall severe maternal morbidity compared with women who gained within guidelines. Although the increased odds ratios (ORs) were statistically significant, this only resulted in an absolute rate increase of 2.1 and 6 cases of severe maternal morbidity per 1,000 deliveries for those who gained 1-19 and 20 lbs or more above recommendations, respectively. Women with gestational weight gain 20 lbs or more above recommendations had significantly higher ORs of eclampsia, heart failure during a procedure, pulmonary edema or acute heart failure, transfusion, and ventilation. CONCLUSION: Women whose gestational weight gain is in excess of IOM guidelines are at increased risk of severe maternal morbidity, although their absolute risks remain low.

Severe cardiovascular morbidity in women with hypertensive diseases during delivery hospitalization.

BACKGROUND: Cardiovascular disease is the leading cause of pregnancy-related death in the United States. Identification of short-term indicators of cardiovascular morbidity has the potential to alter the course of this devastating disease among women. It has been established that hypertensive disorders of pregnancy are associated with increased risk of cardiovascular disease 10-30 years after delivery; however, little is known about the association of hypertensive disorders of pregnancy with cardiovascular morbidity during the delivery hospitalization. OBJECTIVE: We aimed to identify the immediate risk of cardiovascular morbidity during the delivery hospitalization among women who experienced a hypertensive disorder of pregnancy. MATERIALS AND METHODS: This retrospective cohort study of women, 15-55 years old with a singleton gestation between 2008 and 2012 in New York City, examined the risk of severe cardiovascular morbidity in women with hypertensive disorders of pregnancy compared with normotensive women during their delivery hospitalization. Women with a history of chronic hypertension, diabetes mellitus, or cardiovascular disease were excluded. Mortality and severe cardiovascular morbidity (myocardial infarction, cerebrovascular disease, acute heart failure, heart failure or arrest during labor or procedure, cardiomyopathy, cardiac arrest and ventricular fibrillation, or conversion of cardiac rhythm) during the delivery hospitalization were identified using birth certificates and discharge record coding. Using multivariable logistic regression, we assessed the association between hypertensive disorders of pregnancy and severe cardiovascular morbidity, adjusting for relevant sociodemographic and pregnancy-specific clinical risk factors. RESULTS: A total of 569,900 women met inclusion criteria. Of those women, 39,624 (6.9%) had a hypertensive disorder of pregnancy: 11,301 (1.9%) gestational hypertension; 16,117 (2.8%) preeclampsia without severe features; and 12,206 (2.1%) preeclampsia with severe features, of whom 319 (0.06%) had eclampsia. Among women with a hypertensive disorder of pregnancy, 431 experienced severe cardiovascular morbidity (10.9 per 1000 deliveries; 95% confidence interval, 9.9-11.9). Among normotensive women, 1780 women experienced severe cardiovascular morbidity (3.4 per 1000 deliveries; 95% confidence interval, 3.2-3.5). Compared with normotensive women, there was a progressively increased risk of cardiovascular morbidity with gestational hypertension (adjusted odds ratio, 1.18; 95% confidence interval, 0.92-1.52), preeclampsia without severe features (adjusted odds ratio, 1.96; 95% confidence interval, 1.66-2.32), preeclampsia with severe features (adjusted odds ratio, 3.46; 95% confidence interval, 2.99-4.00), and eclampsia (adjusted odds ratio, 12.46; 95% confidence interval, 7.69-20.22). Of the 39,624 women with hypertensive disorders of pregnancy, there were 15 maternal deaths, 14 of which involved 1 or more cases of severe cardiovascular morbidity. CONCLUSION: Hypertensive disorders of pregnancy, particularly preeclampsia with severe features and eclampsia, are significantly associated with cardiovascular morbidity during the delivery hospitalization. Increased vigilance, including diligent screening for cardiac pathology in patients with hypertensive disorders of pregnancy, may lead to decreased morbidity for mothers.