Maternal Morbidity

Thick meconium in the amniotic fluid occurs in about one out of seven pregnancies and increases the chance that a newborn may have breathing problems after birth. These problems can include the need for oxygen, breathing support, admission to the neonatal intensive care unit (NICU), or, in severe cases, meconium aspiration syndrome or persistent pulmonary hypertension. Although amnioinfusion or placing sterile fluid into the uterus during labor was previously studied as a way to reduce these complications, earlier research had major limitations. Past studies included all types of meconium, used different fluid types and temperatures, had inconsistent protocols, and did not measure biomarkers of inflammation or look at long-term outcomes. As a result, it is still unclear whether a modern, standardized approach to amnioinfusion can meaningfully improve newborn health when the meconium is truly thick. The PEARL Trial is a randomized clinical trial designed to answer this question. The study will enroll pregnant individuals at or beyond 36 weeks of gestation who develop thick meconium-stained amniotic fluid, confirmed using a simple, objective measurement ("meconium-crit"). Participants will be randomly assigned to receive either: Warm lactated Ringer's (LR) amnioinfusion through an intrauterine pressure catheter (IUPC), following a standardized protocol, or standard care without amnioinfusion. The main goal is to determine whether warm LR amnioinfusion reduces short-term breathing problems in newborns. The study also collects umbilical cord blood at birth to evaluate markers of inflammation and potential brain injury, which may help explain why some infants develop complications. Families will also be contacted when their child is 12 months old to complete a developmental questionnaire that is widely used in pediatric practice. By using a clear definition of thick meconium, a warm LR infusion protocol, fidelity checklists, and long-term follow-up, this trial aims to provide high-quality evidence to guide care in labor and delivery units nationwide.

The Partnering with Antenatal Navigators to Transform Health in Pregnancy (PATH) study aims to evaluate whether an antenatal patient navigation program improves maternal health, neonatal health, pregnant women's experiences, and health care utilization outcomes among low-income pregnant women and their neonates. Patient navigation is an individualized, barrier-focused, longitudinal, patient-centered intervention that offers support for a defined set of health services. In this randomized controlled trial, pregnant women who are randomized to receive antenatal patient navigation will be compared to pregnant women who are randomized to receive usual care. Navigators will support pregnant women from before 20 weeks of gestation through 2 weeks postpartum. The PATH intervention will be grounded in understanding and addressing factors that influence health and access to care in order to promote self-efficacy, enhance access, and sustain long-term engagement. The main objectives of the study are to: 1. Evaluate whether PATH, compared to usual care, improves maternal health outcomes. We hypothesize the PATH model of antenatal patient navigation for low-income women will reduce the incidence of a composite of adverse maternal outcomes, all of which are known to be increased among women with barriers to care. 2. Evaluate whether PATH, compared to usual care, improves perinatal health outcomes. We hypothesize PATH will reduce the incidence of a composite of adverse perinatal outcomes. We will also investigate neonatal/pediatric health care utilization. 3. Evaluate patient, clinician, navigator, and healthcare system experiences with PATH in preparation for widespread implementation and dissemination of the PATH obstetric navigation model. This aim will be accomplished through investigating patient-reported outcomes, completing qualitative and process mapping interviews with navigated participants, and completing qualitative and process mapping interviews with clinicians, navigators, and health administrators.