Preventing Maternal Mood, Anxiety, and Trauma Symptoms After Cesarean Delivery

Postpartum mental health disorders disproportionately occur among the 1 million patients with cesarean deliveries (CD) in the United States (US) each year, with 1 in 3 reporting elevated symptoms of postpartum mood, anxiety, and trauma symptoms (PMATS). Brief, single-session interventions that target anxiety sensitivity (AS) through psychoeducation + exposure have been shown to prevent the development of anxiety and trauma symptoms in non-perinatal populations. Thus, a single session AS-targeted intervention involving psychoeducation about AS + in-vivo exposure to the operating room (OR) and CD procedures may be an effective intervention to prevent the development of PMATS. The primary objective of this proposal is to refine and pilot a 1-hour, single-session brief exposure intervention in the OR (CARE) to reduce AS and thus prevent the development of PMATS among a population of patients with high-risk pregnancies and anticipated CD.

The investigators initially developed CARE for implementation in a maternal-fetal care unit at a children's hospital that has 12 beds, an average daily census of 6 patients, and 130 CDs/year. In this unit, the investigators conducted a pilot RCT study of CARE among a population of pregnant patients at very high risk for PMATS (those with anomalous fetuses). Those who received CARE reported 42% less preoperative anxiety and 40% less postpartum anxiety symptoms at 6-8 weeks following delivery, and significantly less opioid use at postoperative days 2-4 than those who received care as usual. While these results demonstrate the promise of the intervention, its scalability to large L\&D units and a broader population of patients is not established, and a fully powered, multisite randomized controlled trial (m-RCT) is needed. Before the m-RCT, the intervention must be refined to improve its acceptability, appropriateness, and feasibility for implementation in broader contexts with the desired impact on the target mechanism and outcomes. The proposed project engages in Stage 1A/B activities across three phases. Phase 1 involves a process of iterative refinement using key stakeholder workgroups, user-testing design, and repeated engagement with a steering council (SC) in fast feedback loops to facilitate information flow and foster co-creation. Phase 2 involves the design and implementation of a treatment development trial with an emphasis on feasibility, fidelity, and safety, as well as probing efficacy of engagement with the hypothesized mechanism of CARE (AS) at a single large L\&D unit with 50 beds, an average daily census of 34 patients, and 1,000 CDs/year. Phase 3 will involve one additional cycle of rapid iterative refinement to prepare for a future m-RCT with L\&D units across the US. Identified future m-RCT site-based investigators and associated administrators will participate in a community engagement studio to refine/co-create a finalized implementation protocol for the m-RCT to take to the SC for final approval.

Specific Aim 1: To enhance the efficacy, responsiveness to diverse populations, scalability, and sustainability of CARE for implementation in large L\&D units by engaging in an iterative refinement process guided by an Implementation Research Logic Model (IRLM) framework,12 which allows the team to rapidly iterate based on feedback in Plan-Do-Check-Act cycles using 12 workgroups, 12 user-testing design sessions, and repeated engagement with a SC comprised of stakeholders from across the country (clinicians/hospital staff and those with lived experiences/community partners).

Hypothesis 1: Some barriers and determinants must be addressed to refine CARE and its implementation so that it is acceptable and engages the target mechanism in a diverse population of patients and may be incorporated into workflows on L\&D units.

Specific Aim 2: To probe the efficacy of CARE at reducing AS and preventing PMATS using a treatment development trial with high-risk antepartum patients anticipating CD by comparing outcomes among participants randomized to CARE (N=40), Interaction Control (N=20), or Care as Usual Control (N=20) and to establish feasibility, safety, and acceptability of CARE implementation.

Hypothesis 2a: In comparison to patients who receive either control condition, those who receive CARE will have decreased AS before CD.

Hypothesis 2b: Decreased AS before CD will be associated with fewer symptoms of PMATS at 12 weeks postpartum.

Hypothesis 2c: CARE will be administered with high fidelity, yield minimal safety events, and have high acceptability.

Impact Statement: This study is a critical step in preventing PMATS which are among the leading causes of maternal mortality in the US. This study will be the first in a long line of research broadening to additional risk groups, perinatal care settings, and intervention modalities (e.g., virtual reality, nurse- or peer-facilitated).