Obstetric Labor, Premature

The Periviable GOALS (Getting Optimal Alignment around Life Support) decision support tool (DST) is meant to facilitate informed shared decision-making regarding neonatal resuscitation for families facing the threat of a periviable delivery (deliveries occurring between 22 0/7 - 25 6/7 weeks gestational age). It is designed for parents to review independent of their clinician, and is intended to supplement, not replace, clinician counseling. The focus of the DST is the provision of patient-centered outcomes information and assistance with values clarification regarding neonatal outcomes. This is a multisite, randomized controlled trial to test the effect of the Periviable GOALS DST on shared decision making and decision satisfaction. The investigators hypothesize that participants who utilize the GOALS DST will have improved shared decision making and higher decision satisfaction.

Maternal AR has long been used to prevent PTB. However, definitions of AR vary widely, ranging from complete bed rest to partial limitation of physical activity for one or more hours daily. The use of maternal AR to prevent preterm birth is largely based on observational evidence linking strenuous physical activity to an increased risk of preterm birth, and the assumption that reduced activity may decrease myometrial activity. However, the existing evidence on the clinical effects of AR remains limited and has not demonstrated a reduction in preterm birth or a delay in deliv-ery. In contrast, some studies suggest a potential increase in preterm birth following AR and instead significant adverse maternal and fetal effects. The overall aim of this study is to compare gestational age at birth in women with a short cervix who are prescribed AR compared with women with a short cervix who are not prescribed AR (NAR). The primary hypothesis is that NAR is non-inferior to AR in prolonging pregnancy in women with a short cervix. Secondary hypotheses are that, compared with AR, NAR is associated with higher level of physical activity, lower risk of maternal depression, and reduced risk of loss of maternal bone mineral density. Through the BEWISE study, we wish to implement a change in the Danish national clinical practice regarding AR from recommending AR in risk groups (current practice) to no longer recommending AR as part as routine care (new practice). We will evaluate this change in clinical practice by prospectively collecting data from women both before and after implementation of the new recommendation. The transition from AR to NAR will be implemented sequentially in each Danish region using a randomised stepped-wedge (SW) cluster design, with each region constituting a cluster. The order in which regions transition is determined by randomisation. Each region will adopt the new recommendation at 3-month intervals, resulting in full national transition from AR to NAR within 12 months Eligible participants are pregnant women in gestational age 20+0 to 33+6 and cervical length \< 25 mm in singleton pregnancies and \< 30 mm in multiple pregnancies. Participants must be above 18 years of age and be able to read and understand Danish or English. There are no exclusion criteria. The primary outcome is gestational age in days (continuous).

The goal of the Tiny Baby Collaborative Multicenter Inventory of Neonatal-Perinatal Interventions (MINI) minimum dataset is to serve as a registry detailing the outcomes and practices for all deliveries and infants admitted to intensive care at 22-23 weeks' gestation at participating hospitals.

Antenatal corticosteroids (ACS) reduce the risks of neonatal death and morbidities in preterm infants, such as respiratory distress syndrome. The standard of care for pregnant people at risk of preterm birth includes 2 doses of Celestone (for a total of 24 mg in Canada, or 22.8 mg in Australia) to accelerate fetal lung maturity. The investigators plan to conduct a randomized controlled trial to determine whether half the usual dose (12 mg in Canada, or 11.4 mg in Australia) of Celestone is non-inferior to the standard double doses.