The goal of this randomized controlled trial is determine if education on common events in labor in nulliparous women can reduce the postpartum traumatic symptoms. The main question it aims to answer are:

• Does prenatal education on labor events reduce post-traumatic symptoms, as measured by thePost Traumatic Stress Disorder Cecklist for Diagnostic and Statistical Manual for Mental Health Disorders (PCL-5) at 6 weeks postpartum?
• Does prenatal education on labor affect labor outcomes?

Participants will be given surveys:

• At enrollment on mental health and previous traumatic experiences
• After education on expectations on childbirth
• After delivery on experience of childbirth
• At 6 weeks and 6 months postpartum on traumatic symptoms and mental health outcomes.

They will also have the option to participate in collection of discarded cerebrospinal fluid, blood and serum and physiologic sensitivity testing.

Hypothesis:

This randomized trial was designed to determine if prenatal education on intrapartum experiences reduces postpartum trauma symptoms compared to standard prenatal care.

Methods and Procedures:

1. Identification. Participants will be identified by reviewing prenatal care providers (midwives, generalist obstetricians and perinatology) schedules for those that meet the inclusion criteria and approached in person at ultrasound or clinic appointments to be offered participation. Consent will be obtained at this time. Patient may also be called between appointments, and consent will be signed via HIPAA compliant REDCap.
2. Randomization. Participants will be randomized 1:1 to one of the two study groups described below. Neither participants or medical providers will be blinded to the randomization group. The randomization will be done using the block randomization module in REDcap.
3. Intervention: For those in Group 1, starting at 30 weeks they will be contacted by email and text to provide links to online education videos on intrapartum experiences. Patients will receive text reminders in the third trimester to encourage interaction with the videos, and interaction will be tracked online.
4. Collection of health information. The medical record of the pregnant person and the neonate will be used to collect information related to the pregnancy, delivery, and immediate post-delivery care into REDCap database. Baseline characteristics will include demographic information, prenatal care details such as type of provider, gestational age which established care, visit types, maternal medical conditions and obstetric history. Delivery characteristics will include labor characteristics (length of labor, gestational age, fetal heart rate tracings, any interventions in labor, mode of delivery and newborn and maternal complications during delivery admission).
5. Survey Administration. All participant will be give the same surveys on the same time scales. At enrollment, participants will be given a series of surveys on baseline mental health outcomes (Primary Care PTSD for DSM-5, Generalized Anxiety Disorder -7, Edinburgh Postnatal Depression Scale, Adverse Childhood Experiences), social experiences (Everyday Discrimination scale) and expectations for childbirth (Wijma Delivery Expectations Questionnaire (W-DEQ) on a iPad in clinic. Participants will be contacted via text and/or email for a repeat W-DEQ scale at term and after delivery. They will be contacted again via text and/or email at six weeks postpartum with 2 reminders if not replied (survey open 6 weeks-12 weeks) postpartum, and then again six months (with two reminders, survey open to 8 months) postpartum. All of these surveys will be administered by RedCap and collected securely.
6. Collection of specimens. Cerebrospinal fluid will only be collected from patients who are already undergoing dural puncture as standard of care for their anesthesia plan. Usual standard of care for epidural anesthesia at our hospital is to perform a dural puncture at the time of epidural placement which results in 0.5-1 mL of cerebrospinal fluid release through the needle used to place the epidural. Instead of allowing this fluid to be discarded, we will collect it in sterile tubes. The anesthesia plan will in no way be impacted by our study. If the anesthesia team at the time of placement feels a dural puncture is not appropriate, then the dural space will not be entered and fluid will not be collected. The sample collected will not exceed the amount that would be discarded as waste in a routine procedure and will be collected in a sterile fashion, presenting no additional risk to patients. Additionally, up to 1 cc discarded urine from foley catheter drainage, and up to 1 cc of additional blood will be taken at the time of already scheduled blood draws. No additional blood draws or urine samples will be requested outside of routine care. Stool collection kits will also be given to participants on L&D to collect if able, with instructions on how to collect stool off toilet paper and return samples. This will be used to create a biospecimen repository with no genetic or identifying information.
7. Physiologic testing. A subgroup of participants will undergo cutaneous mechanical sensitivity assays, radiant heat assays and pressure sensitivity assays. The cutaneous mechanical sensitivity testing involves stimulation with von Frey filaments to determine the size of filament that the participant can detect. The heat sensitivity assay will be preformed a radiant heat devices that uses a focused light beam to slowly heat a participants skin through safety glass, with participants indicating first when temperature is detected and in a second trial, when it becomes painful. This was assembled according to the protocol attached, using the IITC Plantar Analgesia Meter assembled in the attached protocol using a Hargraves testing platform. The heat assay assessing constant temperature will apply a stimulus for 3 seconds and request rating of pain, set at the typical minimal stimulus required to feel pain. The pressure sensitivity assay involves a 2 cm probe pressed against participant skin until they identify the threshold where it becomes painful. The probe is a standard clinical threshold algometer, as shown in the picture. For all of these assays, they will be tested on the right and left forearm, and right and left calf. These will be done at admission to labor and delivery, and patients have can opt out without impacting survey collection. A convenience sample will be collected when researchers are available on labor and delivery (typically 10 am to 6 pm), expecting to be no more than 20% of the enrolled population to be captured at delivery admission. Patients will be approached if they are early in their admission, have not yet requested an epidural and have not opt-ed out to either biospecimen collection or physiologic testing.

Inclusion criteria:

• Maternal age > 18 years
• Nulliparous
• Singleton pregnancy between 18-30 weeks
• English Speaking

Exclusion criteria:

• Prenatal care outside of UCSD
• Plan to deliver outside of UCSD
• Contraindications to vaginal delivery at time of enrollment
• Major fetal anomalies at time of Level II Ultrasound
• No access to smart phone and/or internet

All of the individual participant data collected during the trial, after deidentification

Data requests can be submitted starting 9 months after article publication and the data will be made accessible for up to 24 months. Extensions will be considered on a case-by-case basis.

Access to trial IPD can be requested by qualified researchers engaging in independent scientific research, and will be provided following review and approval of a research proposal and Statistical Analysis Plan (SAP) and execution of a Data Sharing Agreement (DSA). For more information or to submit a request, please contact rwiley@health.ucsd.edu