Society for Maternal-Fetal Medicine Consult Series #71: Management of previable and periviable preterm prelabor rupture of membranes.

Previable and periviable preterm prelabor rupture of membranes are challenging obstetrical complications to manage given the substantial risk of maternal morbidity and mortality, with no guarantee of fetal benefit. The following are the Society for Maternal-Fetal Medicine recommendations for the management of previable and periviable preterm prelabor rupture of membranes before the period when a trial of neonatal resuscitation and intensive care would be considered appropriate by the healthcare team and desired by the patient: (1) we recommend that pregnant patients with previable and periviable preterm prelabor rupture of membranes receive individualized counseling about the maternal and fetal risks and benefits of both abortion care and expectant management to guide an informed decision; all patients with previable and periviable preterm prelabor rupture of membranes should be offered abortion care, and expectant management can also be offered in the absence of contraindications (GRADE 1C); (2) we recommend antibiotics for pregnant individuals who choose expectant management after preterm prelabor rupture of membranes at ≥24 0/7 weeks of gestation (GRADE 1B); (3) antibiotics can be considered after preterm prelabor rupture of membranes at 20 0/7 to 23 6/7 weeks of gestation (GRADE 2C); (4) administration of antenatal corticosteroids and magnesium sulfate is not recommended until the time when a trial of neonatal resuscitation and intensive care would be considered appropriate by the healthcare team and desired by the patient (GRADE 1B); (5) serial amnioinfusions and amniopatch are considered investigational and should be used only in a clinical trial setting; they are not recommended for routine care of previable and periviable preterm prelabor rupture of membranes (GRADE 1B); (6) cerclage management after previable or periviable preterm prelabor rupture of membranes is similar to cerclage management after preterm prelabor rupture of membranes at later gestational ages; it is reasonable to either remove the cerclage or leave it in situ after discussing the risks and benefits and incorporating shared decision-making (GRADE 2C); and (7) in subsequent pregnancies after a history of previable or periviable preterm prelabor rupture of membranes, we recommend following guidelines for management of pregnant persons with a previous spontaneous preterm birth (GRADE 1C).

How to: a breech vaginal delivery before 25 weeks of gestation.

Delivery before 25 weeks of gestation has become a more frequent occurrence in our maternity units and can be a difficult obstetrical situation to manage when the fetus is breech. We describe a new obstetrical maneuver enabling vaginal birth of a breech fetus before 25 weeks of gestation. It enables the fetal mobile to be fully grasped and secured, thus facilitating passage through the genital tract.

Potential missed opportunities for antenatal corticosteroid exposure and outcomes among periviable births: observational cohort study.

OBJECTIVE: Test the hypothesis potential missed opportunities for antenatal corticosteroids increase as gestational age decreases and are associated with adverse outcomes. DESIGN: Observational cohort study. SETTING: 24 US centers in the Neonatal Research Network. POPULATION: Actively treated infants 22-25 weeks' gestation and birth weight 401-1000 grams, without major birth defects, born 2006-2018. METHODS: Potential missed opportunity was defined as no antenatal corticosteroids but did have prenatal antibiotics, and/or magnesium sulfate, and/or prolonged rupture of membranes. Poisson regression models adjusted for baseline characteristics. MAIN OUTCOME MEASURES: Antenatal corticosteroid exposure, mortality, and severe intracranial hemorrhage or periventricular leukomalacia. RESULTS: 6966 (87.5%) were exposed to antenatal corticosteroids, 454 (5.7%) had no exposure but potential missed opportunities for antenatal corticosteroid exposure, and 537 (6.7%) had no exposure and no evidence of potential missed opportunities. Compared with infants born at 25 weeks, potential missed opportunities for antenatal corticosteroid exposure were more likely at 22 weeks (adjusted relative risk (aRR) [95% CI] 11.06 [7.52-16.27]) and 23 weeks (3.24 [2.44-4.29]) but did not differ at 24 weeks (1.08 [0.82-1.42]). Potential missed opportunities for antenatal corticosteroids decreased over time at 22-23 weeks' gestation. Antenatal corticosteroid exposed infants had lower risk of death (31.0% vs 54.8%; 0.77 [0.70-0.84]) and survivors had lower risk of severe brain injury (25.0% v 44.5%; 0.64 [0.55-0.73]) compared with infants with potential missed opportunities. CONCLUSION: Potential missed opportunities for antenatal corticosteroid exposure increased with decreasing gestational age and were associated with higher rates of death and severe brain injury among actively treated periviable births.

The healthcare needs of preterm and extremely premature babies in Australia-assessing the long-term health service use and costs with a data linkage cohort study.

The health conditions associated with extreme prematurity will likely require life-long treatment and management. As such, planning for the provision of healthcare services is essential in order to maximise their long-term well-being. We sought to quantify the use of healthcare services and the associated costs for extremely premature babies compared to preterm and term babies in Australia using a whole-of-population linked administrative dataset. In the first year of life, extremely premature babies had an average of 3.4 hospital admissions, and 2 emergency department presentations. They also had an average of 16 specialist attendances, 33 pathology tests and 6 diagnostic imaging tests performed. This was more than that utilised by preterm and full-term babies. The mean annual cost of hospitalisations was $182,312 for extremely premature babies in the first year and $9958 in the second year. The mean annual out-of-pocket fees for these services were $2212 and $121 in the first and second years respectively.Conclusion: Understanding the long-term healthcare needs of extremely premature babies in order to provide both an adequate number of services and also connection between services should be a central part of health system planning as the survival rates of extremely premature babies improve over time. What is Known: • The health service use of extremely premature babies is higher at the time of birth. • Health conditions and disabilities associated with extreme prematurity require life-long care. What is New: • Extremely premature babies have more diverse and frequent access to services than premature and term babies until at least age 2. • This comes at higher cost to families through out-of-pocket payments.

Temporal changes in rates of active management and infant survival following live birth at 22-24 weeks' gestation in Victoria.

BACKGROUND: Management of livebirths at 22-24 weeks' gestation in high-income countries varies widely and has changed over time. AIMS: Our aim was to determine how rates of active management and infant survival of livebirths at 22-24 weeks varied with perinatal variables known at birth, and over time in Victoria, Australia. MATERIALS AND METHODS: We conducted a population-based cohort study of all 22-24 weeks' gestation live births, free of lethal congenital anomalies in 2009-2017. Rates of active management and survival to one year of age were reported. 'Active management' was defined as receiving resuscitation at birth or nursery admission for intensive care. RESULTS: Over the nine-year period, there were 796 eligible live births. Overall, 438 (55%) were actively managed: 5% at 22 weeks, 45% at 23 weeks and 90% at 24 weeks' gestation, but rates of active management did not vary substantially over time. Of livebirths actively managed, 263 (60%) survived to one year: 0% at 22 weeks, 50% at 23 weeks and 66% at 24 weeks. Apart from gestational age, being born in a tertiary perinatal centre and increased size at birth were associated with survival in those actively managed, but sex and plurality were not. Survival rates of actively managed infants rose over time (adjusted odds ratio 1.09 per year; 95% CI 1.01-1.18; P = 0.03). CONCLUSIONS: Although active management rates did not change substantially over time in Victoria, an overall increase in infant survival was observed. With increasing gestational age, rates of active management and infant survival rapidly rose.

Values clarification: Eliciting the values that inform and influence parents' treatment decisions for periviable birth.

BACKGROUND: Values clarification can assist families facing the threat of periviable delivery in navigating the complexity of competing values related to death, disability, and quality of life (QOL). OBJECTIVE: We piloted values clarification exercises to inform resuscitation decision making and qualitatively assess perceptions of QOL. METHODS: We conducted a mixed-method study of women with threatened periviable delivery (22 0/7-24 6/7 weeks) and their important others (IOs). Participants engaged in three values clarification activities as part of a semi-structured interview-(a) Card sorting nine conditions as an acceptable/unacceptable QOL for a child; (b) Rating/ranking seven common concerns in periviable decision making (scale 0-10, not at all to extremely important); and (c) "Agreed/disagreed" with six statements regarding end-of-life treatment, disability, and QOL. Participants were also asked to define "QOL" and describe their perceptions of a good and poor QOL for their child. Analysis was conducted using SAS version 9.4 and NVivo 12. RESULTS: All mild disabilities were an acceptable QOL, while two-thirds of participants considered long-term mechanical ventilation unacceptable. Although pregnant women rated "Impact on Your Physical/Mental Health" (average 5.6) and IOs rated "Financial Concerns" the highest (average 6.6), both groups ranked "Financial Concerns" as the most important concern (median 5.0 and 6.0, respectively). Most participants agreed that "Any amount of life is better than no life at all" (pregnant women 62.1%; IOs 75.0%) and disagreed that resuscitation would cause "Too much suffering" for their child (pregnant women 71.4%; IOs 80.0%). Half were familiar with the phrase "QOL". Although the majority described a good QOL in terms of emotional well-being (eg "loved", "happy", "supported"), a poor QOL was described in terms of functionality (eg "dependent" and "confined"). Additionally, financial stability emerged as a distinctive theme when IOs discussed poor QOL. CONCLUSION: The study offers important insights on parental perspectives in periviable decision making and potential values clarification tools for decision support.

Outcomes and resource usage of infants born at ≤ 25 weeks gestation in Canada.

OBJECTIVES: To determine the outcomes and resource usage of infants born at ≤ 25 weeks gestational age (GA). METHODS: Retrospective study of infants born between April 2009 and September 2011 at ≤ 25 weeks' GA in all neonatal intensive care units in Canada with follow-up in the neonatal follow-up clinics. Short-term morbidities, neurodevelopmental impairment, significant neurodevelopmental impairment, and resource utilization of infants born at ≤ 24 weeks were compared with neonates born at 25 weeks. RESULTS: Of 803 neonates discharged alive, 636 (80.4%) infants born at ≤ 25 weeks' GA were assessed at 18 to 24 months. Caesarean delivery, lower birth weight, and less antenatal steroid exposure were more common in infants born ≤ 24 weeks as compared with 25 weeks. They had significantly higher incidences of ductus arteriosus ligation, severe intracranial hemorrhage, retinopathy of prematurity as well as longer length of stay, central line days, days on respiratory support, days on total parenteral nutrition, days on antibiotics, and need for postnatal steroids. Neurodevelopmental impairment rates were 68.9, 64.5, and 55.6% (P=0.01) and significant neurodevelopmental impairment rates were 39.3, 29.6, and 20.9% (P<0.01) for infants ≤ 23, 24, and 25 weeks GA, respectively. Postdischarge service referrals were higher for those ≤ 23 weeks. Nonsurviving infants born at 25 weeks GA had higher resource utilization during admission than infants born less than 25 weeks. CONCLUSIONS: Adverse outcomes and resource usage were significantly higher among infants born ≤ 24 weeks GA as compared with 25 weeks GA.

Temporal Themes in Periviable Birth: A Qualitative Analysis of Patient Experiences.

Objective Periviable birth accounts for a very small percentage of preterm deliveries but a large proportion of perinatal and neonatal morbidity. Understanding parental experiences during and after periviable deliveries may help healthcare providers determine how to best support women during these medically complex, emotionally charged clinical encounters. Methods This is a qualitative study with a voluntary sample of women who delivered between 22 and 25 weeks gestation at an academic medical center from 2014 to 2016. Women's narratives of each periviable birth experience were transcribed and analyzed using consensus coding and a grounded theory approach to identify key themes that describe parental experiences. Results A total of 10 women were interviewed. Four emergent temporal themes: (1) the time preceding admission: feeling dismissed; (2) transfer or admission to a tertiary care center: anxiety and doubt; (3) the birth itself: fear of the outcome; and (4) the postpartum period: reflection and communication. Conclusions for practice Women that experience a periviable birth may benefit from continuous support and clear communication. Overall, care for these patients should be expanded to address the specific psychosocial needs identified during the distinctive, periviable temporal themes that emerged during interviews. Continuous longitudinal support in the form of a designated person or team should be provided to women experiencing a potential periviable birth in order to help mitigate the fear and anxiety associated with these complex birth experiences.

Preterm premature rupture of membranes at 22-25 weeks' gestation: perinatal and 2-year outcomes within a national population-based study (EPIPAGE-2).

BACKGROUND: Most clinical guidelines state that with early preterm premature rupture of membranes, obstetric and pediatric teams must share a realistic and individualized appraisal of neonatal outcomes with parents and consider their wishes for all decisions. However, we currently lack reliable and relevant data, according to gestational age at rupture of membranes, to adequately counsel parents during pregnancy and to reflect on our policies of care at these extreme gestational ages. OBJECTIVE: We sought to describe both perinatal and 2-year outcomes of preterm infants born after preterm premature rupture of membranes at 22-25 weeks' gestation. STUDY DESIGN: EPIPAGE-2 is a French national prospective population-based cohort of preterm infants born in 546 maternity units in 2011. Inclusion criteria in this analysis were women diagnosed with preterm premature rupture of membranes at 22-25 weeks' gestation and singleton or twin gestations with fetus(es) alive at rupture of membranes. Latency duration, antenatal management, and outcomes (survival at discharge, survival at discharge without severe morbidity, and survival at 2 years' corrected age without cerebral palsy) were described and compared by gestational age at preterm premature rupture of membranes. RESULTS: Among the 1435 women with a diagnosis of preterm premature rupture of membranes, 379 were at 22-25 weeks' gestation, with 427 fetuses (331 singletons and 96 twins). Median gestational age at preterm premature rupture of membranes and at birth were 24 (interquartile range 23-25) and 25 (24-27) weeks, respectively. For each gestational age at preterm premature rupture of membranes, nearly half of the fetuses were born within the week after the rupture of membranes. Among the 427 fetuses, 51.7% were survivors at discharge (14.1%, 39.5%, 66.8%, and 75.8% with preterm premature rupture of membranes at 22, 23, 24, and 25 weeks, respectively), 38.8% were survivors at discharge without severe morbidity, and 46.4% were survivors at 2 years without cerebral palsy, with wide variations by gestational age at preterm premature rupture of membranes. Survival at 2 years without cerebral palsy was low with preterm premature rupture of membranes at 22 and 23 weeks but reached approximately 60% and 70% with preterm premature rupture of membranes at 24 and 25 weeks. CONCLUSION: Preterm premature rupture of membranes at 22-25 weeks is associated with high incidence of mortality and morbidity, with wide variations by gestational age at preterm premature rupture of membranes. However, a nonnegligible proportion of children survive without severe morbidity both at discharge and at 2 years' corrected age.

What is the safest mode of birth for extremely preterm breech singleton infants who are actively resuscitated? A systematic review and meta-analyses.

BACKGROUND: The safest delivery mode of extremely preterm breech singletons is unknown. OBJECTIVES: To determine safest delivery mode of actively resuscitated extremely preterm breech singletons. SEARCH STRATEGY: We searched Cochrane CENTRAL, MEDLINE, EMBASE, CINAHL and ClinicalTrials.gov from January 1994 to May 2017. SELECTION CRITERIA: We included studies comparing outcomes by delivery mode in actively resuscitated breech infants between 23+0 and 27+6 weeks. DATA COLLECTION AND ANALYSIS: We synthesised data using random effects, generated odds ratios, 95% confidence intervals and number-needed-to-treat (NNT). Our primary outcomes were death (neonatal, before discharge, or by 6 months) and severe intraventricular haemorrhage (grades III/IV), stratified by gestational age (23+0 -24+6 , 25+0 -26+6 , 27+0 -27+6 weeks). MAIN RESULTS: We included 15 studies with 12 335 infants. We found that caesarean section was associated with a 41% decrease in odds of death between 23+0 and 27+6 weeks [odds ratio (OR) 0.59, 95% CI 0.36-0.95, NNT 8], with the greatest decrease at 23+0 -24+6 weeks (OR 0.58, 95% CI 0.44-0.75, NNT 7). The OR at 25+0 -26+6 and 27+0 -27+6 weeks were 0.72 (95% CI 0.34-1.52) and 2.04 (95% CI 0.20-20.62), respectively. We found that caesarean section was associated with 49% decrease in odds of severe intraventricular haemorrhage between 23+0 and 27+6 weeks (OR 0.51, 95% CI 0.29-0.91, NNT 12), whereas the OR at 25+0 -26+6 and 27+0 -27+6 was 0.29 (95% CI 0.07-1.12) and 0.91 (95% CI 0.27-3.05), respectively. CONCLUSIONS: Caesarean section was associated with reductions in the odds of death by 41% and of severe intraventricular haemorrhage by 49% in actively resuscitated breech singletons < 28 weeks of gestation. The data are mostly observational, which may be inherently biased, and scarce on other morbidities, necessitating thorough discussion between parents and clinicians. TWEETABLE ABSTRACT: Caesarean section associated with lower odds of death and severe intraventricular haemorrhage in actively resuscitated breech singletons <28 weeks.

Survival and neurodevelopmental outcomes in extremely preterm infants 22-24 weeks of gestation born in Western Australia.

AIM: The management of births at borderline viability continues to present dilemmas for health professionals and parents. The aim of the study was to review local outcomes of infants born between 22 and 24 weeks of gestation between 2004 and 2010 in Western Australia (WA) to aid perinatal counselling. METHODS: Survival data for the study were sourced retrospectively from the Neonatal Clinical Care Unit and Department of Health records of births in WA. Neurodevelopmental follow-up outcomes were assessed using the most recent standardised assessment (Griffiths, Bayley-III and Wechsler Preschool and Primary Scale of Intelligence, 3rd Ed) and medical examination of infants/children 12 months to 8 years from follow-up clinic appointments. RESULTS: At these gestations, 159 survivors represented 72% of neonatal intensive care unit admissions, 53% of WA live births and 26% of WA live and still births; 5% of live births survived at 22 weeks, 46% at 23 weeks and 77% at 24 weeks. Of the 14 outborn/retrieved infants, 4 survived (29%). At a median age of 59 months, disabilities were severe in 13% of children (22-23w = 19%; 24w = 11%). The median test quotient was 90. Moderate and severe cognitive disability was found in 16%, cerebral palsy was found in 7% (n = 11), and 55% of children were free from impairment as defined in this study. CONCLUSION: At these gestations, survival figures varied markedly with the chosen population denominator. Regional data are essential for valid population comparison. While many developmental difficulties occurred in these children, 78% were free from moderate or severe impairment at ages 3-5 years.

Short-term outcome of periviable small-for-gestational-age babies: is our counseling up to date?

OBJECTIVE: There are limited data for counseling on and management of periviable small-for-gestational-age (SGA) fetuses. We therefore aimed to investigate the short-term outcome of periviable SGA fetuses in relation to the likely underlying cause. METHODS: This was a retrospective study of data from three London tertiary fetal medicine centers obtained between 2000 and 2015. We included viable singleton pregnancies with a severely small fetus, defined as those with an abdominal circumference ≤ 3rd percentile, identified between 22 + 0 and 25 + 6 weeks' gestation. Data obtained included fetal biometry, presence of placental anomalies, uterine and fetal Doppler and neonatal outcome. We excluded cases with structural abnormalities, proven or suspected abnormal karyotype or genetic syndromes. Cases were classified according to the suspected underlying cause of the small fetal size into one of the following categories: uteroplacental insufficiency, evidence of placental damage with normal uterine artery Doppler, viral infection, or unclassied. RESULTS: There were 245 cases included in the study. Of these, at diagnosis of SGA, 201 (82%) were categorized as uteroplacental cause, 13 (5%) as suspected placental cause, one (0.4%) as suspected viral cause and 30 (12%) could not be assigned to any of these categories. Overall, 101 (41%) cases survived the neonatal period; 89 (36%) underwent in-utero fetal demise, 22 (9%) died neonatally and 33 (14%) pregnancies were terminated. The diagnosis-to-delivery interval was 8.1 weeks in those that survived and 4.5 weeks in those that died neonatally. CONCLUSIONS: Almost 90% of periviable SGA cases are associated with uteroplacental insufficiency or intraplacental damage. Survival is related to gestational age at delivery, with outcomes better than might be assumed at diagnosis and some pregnancies reaching term. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.

Successful Management of a Periviable Pregnancy with Morbidly Adherent Placenta after Uterine Rupture.

BACKGROUND: Although rare, trauma in pregnancy can cause uterine rupture. In a periviable pregnancy, uterine rupture can lead to premature delivery and significant morbidity. CASE: A 29-year-old woman with four prior CSs presented with uterine rupture and a protruding morbidly adherent placenta at 23+4 weeks of gestation. Since the pregnancy was highly desired, the defect was repaired and the decision made to continue with the pregnancy. The patient presented at 29+3 weeks of gestation with preterm labour and subsequently delivered a healthy male infant of 1130 grams. CONCLUSION: Expectant management followed by CS can be beneficial in certain cases of uterine rupture with morbidly adherent placenta following trauma. This is especially the case in a periviable pregnancy, since prolonging the pregnancy will improve neonatal outcomes. We recommend individualized management based on clinical presentation, imaging findings, and the patient's wishes.

Morbidity and mortality associated with mode of delivery for breech periviable deliveries.

OBJECTIVE: The purpose of this study was to estimate the odds of morbidity and death that are associated with cesarean delivery, compared with vaginal delivery, for breech fetuses who are delivered from 23-24 6/7 weeks' gestational age. STUDY DESIGN: We conducted a retrospective cohort study of state-level maternal and infant hospital discharge data that were linked to vital statistics for breech deliveries that occurred from 23-24 6/7 weeks' gestation in California, Missouri, and Pennsylvania from 2000-2009 (N = 1854). Analyses were stratified by gestational age (23-23 6/7 vs 24-24 6/7 weeks' gestation). RESULTS: Cesarean delivery was performed for 46% (335 fetuses) and 77% (856 fetuses) of 23- and 24-week breech fetuses. In multivariable analyses, overall survival was greater for cesarean-born neonates (adjusted odds ratio [AOR], 3.98; 95% confidence interval [CI], 2.24-7.06; AOR, 2.91; 95% CI, 1.76-4.81, respectively). When delivered for nonemergent indications, cesarean-born survivors were more than twice as likely to experience major morbidity (intraventricular hemorrhage, bronchopulmonary dysplasia, necrotizing enterocolitis, asphyxia composite; AOR, 2.83; 95% CI, 1.37-5.84; AOR, 2.07; 95% CI, 1.11-3.86 at 23 and 24 weeks' gestation, respectively). Among intubated neonates, despite a short-term survival advantage, there was no difference in survival to >6-month corrected age (AOR, 1.77; 95% CI, 0.83-3.74; AOR, 1.50; 95% CI, 0.81-2.76, respectively). There was no difference in survival for intubated 23-week neonates who were delivered by cesarean for nonemergent indications or cesarean-born neonates who weighed <500 g. CONCLUSION: Cesarean delivery increased overall survival and major morbidity for breech periviable neonates. However, among intubated neonates, despite a short-term survival advantage, there was no difference in 6-month survival. Also, cesarean delivery did not increase survival for neonates who weighed <500 g. Patients and providers should discuss explicitly the trade-offs related to neonatal death and morbidity, maternal morbidity, and implications for future pregnancies.

Outcomes of expectantly managed pregnancies with multiple gestations and preterm premature rupture of membranes prior to 26 weeks.

OBJECTIVE: The objective of the study was to determine the obstetric and neonatal outcomes of expectantly managed multifetal pregnancies complicated by early preterm premature rupture of membranes (PPROM) prior to 26 weeks. STUDY DESIGN: This was a retrospective cohort of all multifetal pregnancies complicated by documented PPROM occurring before 26 0/7 weeks and managed expectantly by a single maternal-fetal medicine practice between July 4, 2002, and Sept. 1, 2013. Neonatal and maternal outcomes were assessed and comparisons made between the fetus with ruptured membranes and the first fetus to deliver with intact membranes. RESULTS: Twenty-three pregnancies (46 fetuses) were analyzed with a median gestational age at PPROM of 22.9 weeks; 74% experienced PPROM at less than 24 weeks' gestation. A median latency of 11 days was achieved with expectant management. Of the 46 neonates, 20 (43%) survived to hospital discharge. Of these, 12 (60%) experienced severe neonatal morbidity defined as defined as grade III or IV intraventricular hemorrhage, bronchopulmonary dysplasia, pulmonary hypoplasia, necrotizing enterocolitis requiring surgical intervention, and/or grade 3 or 4 retinopathy of prematurity. Eight neonates survived to hospital discharge without severe neonatal morbidity. The multiple with ruptured membranes was more likely to experience intrauterine demise but otherwise had similar outcomes as the multiple with intact membranes. Maternal morbidity was considerable, with 7 of 23 pregnancies (30%) complicated by clinical chorioamnionitis, 12 of 23 (52%) delivering by cesarean, of which 3 of 12 (25%) were classical cesarean deliveries. CONCLUSION: Overall, neonatal survival to hospital discharge was 43%, but only 17% survived without significant neonatal morbidity. These data provide a basis for counseling and management of women with multifetal gestation complicated by very early PPROM.

Maternal and perinatal outcomes of pregnancies delivered at 23 weeks' gestation.

OBJECTIVE: To evaluate the maternal and perinatal outcomes of pregnancies delivered at 23+0 to 23+6 weeks' gestation. METHODS: This prospective cohort study included women in the Canadian Perinatal Network who were admitted to one of 16 Canadian tertiary perinatal units between August 1, 2005, and March 31, 2011, and who delivered at 23+0 to 23+6 weeks' gestation. Women were included in the network if they were admitted with spontaneous preterm labour with contractions, a short cervix without contractions, prolapsing membranes with membranes at or beyond the external os or a dilated cervix, preterm premature rupture of membranes, intrauterine growth restriction, gestational hypertension, or antepartum hemorrhage. Maternal outcomes included Caesarean section, placental abruption, and serious complication. Perinatal outcomes were mortality and serious morbidity. RESULTS: A total of 248 women and 287 infants were included in the study. The rate of Caesarean section was 10.5% (26/248) and 40.3% of women (100/248) had a serious complication, the most common being chorioamnionitis (38.6%), followed by blood transfusion (4.5%). Of infants with known outcomes, perinatal mortality was 89.9% (223/248) (stillbirth 23.3% [67/287] and neonatal death 62.9% [156/248]). Of live born neonates with known outcomes (n = 181), 38.1% (69/181) were admitted to NICU. Of those admitted to NICU, neonatal death occurred in 63.8% (44/69). Among survivors at discharge, the rate of severe brain injury was 44.0% (11/25), of retinopathy of prematurity 58.3% (14/24), and of any serious neonatal morbidity 100% (25/25). Two subgroup analyses were performed: in one, antepartum stillbirths were excluded, and in the other only centres that indicated they offered fetal monitoring at 23 weeks' gestation were included and antepartum stillbirths were excluded. In each of these, perinatal outcomes similar to the overall group were found. CONCLUSION: Pregnant women delivering at 23 weeks' gestation are at risk of morbidity. Their infants have high rates of serious morbidity and mortality. Further research is needed to identify strategies and forms of management that not only increase perinatal survival but also reduce morbidities in these extremely low gestational age infants and reduce maternal morbidity.

Objectif : Évaluer les issues maternelles et périnatales des grossesses donnant lieu à un accouchement entre 23+0 et 23+6 semaines de gestation. Méthodes : Cette étude de cohorte prospective portait sur des femmes du Réseau périnatal canadien qui ont été admises à l'une des 16 unités périnatales tertiaires canadiennes participantes entre le 1er août 2005 et le 31 mars 2011, et qui ont accouché entre 23+0 et 23+6 semaines de gestation. Les femmes ont été admises dans le réseau si elles avaient été hospitalisées en raison d'un travail préterme spontané (s'accompagnant de contractions), d'un col court (sans contractions), d'un prolapsus des membranes (s'accompagnant d'une dilatation du col ou dans le cadre duquel les membranes se situaient au niveau de l'orifice externe ou faisaient saillie au-delà de ce dernier), d'une rupture prématurée des membranes préterme, d'un retard de croissance intra-utérin, d'une hypertension gestationnelle ou d'une hémorragie antepartum. Parmi les issues maternelles, on trouvait la césarienne, le décollement placentaire et la manifestation d'une complication grave. La morbidité grave et la mortalité constituaient les issues périnatales. Résultats : En tout, 248 femmes et 287 nouveau-nés ont été inclus dans l'étude. Le taux de césarienne était de 10,5 % (26/248) et 40,3 % des femmes (100/248) ont connu une complication grave (la plus courante étant la chorioamnionite [38,6 %], suivie de la transfusion sanguine [4,5 %]). Parmi les nouveau-nés pour lesquels les issues étaient connues, le taux de mortalité périnatale était de 89,9 % (223/248) (taux de mortinaissance : 23,3 % [67/287] et taux de décès néonatal : 62,9 % [156/248]). Une admission à l'UNSI a été requise pour 38,1 % (69/181) des enfants nés vivants pour lesquels les issues étaient connues (n = 181). Parmi ces enfants ayant dû être admis à l'UNSI, un décès néonatal a été constaté dans 63,8 % (44/69) des cas. Chez les survivants (au moment de l'obtention de leur congé de l'UNSI), le taux de lésion cérébrale grave était de 44,0 % (11/25), le taux de rétinopathie des prématurés était de 58,3 % (14/24) et le taux de quelque morbidité néonatale grave que ce soit était de 100 % (25/25). Deux analyses de sous-groupe ont été menées : dans le cadre de l'une d'entre elles, les mortinaissances pendant la période antepartum ont été exclues; dans le cadre de l'autre, seuls les centres ayant indiqué qu'ils offraient le monitorage fœtal à 23 semaines de gestation ont été inclus et les mortinaissances pendant la période antepartum ont également été exclues. Des issues périnatales semblables à celles du groupe général ont été constatées dans chacune de ces analyses. Conclusion : Les femmes enceintes qui accouchent à 23 semaines de gestation sont exposées à des risques de morbidité. Leurs nouveau-nés présentent des taux élevés de morbidité grave et de mortalité. La poursuite de la recherche s'avère requise pour permettre l'identification de stratégies et de formes de prise en charge qui entraînent non seulement une amélioration du taux de survie périnatale, mais également une baisse des taux de morbidité que connaissent ces nouveau-nés d'âge gestationnel extrêmement faible et les mères.

Perinatal optimisation for periviable birth and outcomes: a 4-year network analysis (2018-2021) across a change in national guidance.

Introduction: The British Association of Perinatal Medicine (BAPM) released their revised framework for extremely preterm infant management in 2019. This revised framework promotes consideration of perinatal optimisation and survival-focused care from 22 weeks gestation onwards. This was a departure from the previous BAPM framework which recommended comfort care as the only recommended management for infants <23 + 0 weeks. Methods: Our study evaluates the clinical impact that this updated framework has had across the Northwest of England. We utilised anonymised network data from periviable infants delivered across the region to examine changes in perinatal optimisation practices and survival outcomes following the release of the latest BAPM framework. Results: Our data show that after the introduction of the updated framework there has been an increase in perinatal optimisation practices for periviable infants and an 80% increase in the number of infants born at 22 weeks receiving survival-focused care and admission to a neonatal unit. Discussion: There remain significant discrepancies in optimisation practices by gestational age, which may be contributing to the static survival rates that were observed in the lowest gestational ages.

A Patient Interview-Based Needs Assessment and Evaluation of Experiences with Periviable Pregnancies.

Given the complex ethical and emotional nature of births during the periviable period for both health care providers and families, this investigation sought to identify strategies for improved counseling of pregnant patients facing preterm birth at the cusp of viability at a tertiary care center in Hawai'i. As part of a larger quality improvement project on periviability counseling, 10 patients were interviewed during either individual or small focus groups using a progression of hypothetical scenarios. Interviews were analyzed independently by 3 investigators to identify themes of patient experience and potential areas for improvement when counseling patients who are carrying periviable pregnancies. Several common themes emerged from the interviews. Patients expressed the desire for more information throughout the process delivered in a jargon-free manner with unified messaging from the medical teams, and emotional support. These findings add to a limited body of literature which addresses patient perceptions of interactions with health care providers in the face of uncertainty, particularly in a Pacific Islander population. The authors recommend increasing provider training and developing a more structured process to counsel pregnant women facing periviable pregnancy loss to improve the patient experience.

Hospital Factors Associated with the Survival of Infants Born at Periviable Gestation: The USA National Database.

Background: Reports on the survival of infants born at periviable gestation (GA of ≤24 weeks and birth weight of <500 gm) vary significantly. We aimed to determine hospital factors associated with their survival and to assess the trend for the timing of postnatal mortality in these periviable infants. Methods: We utilized the de-identified National Inpatient Sample (NIS) dataset of the Healthcare Cost and Utilization Project (HCUP) from the Agency for Healthcare Research and Quality (AHRQ). National data were analyzed for the years 2010-2018. Hospitals were categorized according to delivery volume, USA regions, and teaching status. Results: We identified 33,998,014 infants born during the study period; 76,231 infants were ≤24 weeks. Survival at birth and first 2 days of life was greatest in urban teaching hospitals in infants <24 weeks and those who completed 24 weeks, respectively. The Northeast region has the lowest survival rate. There was a significant delay in the postnatal day of mortality in periviable infants. Conclusions: Hospital factors are associated with increased survival rates. Improved survival in large teaching hospitals supports the need for the regionalization of care in infants born at the limits of viability. There was a significant delay in the postnatal mortality day.